Terylene Structure






































a synthetic polyester fibre or fabric based on terephthalic acid, characterized by lightness and crease resistance and used for clothing, sheets,. These four elements constitute about 95% of your body weight. [1] (ii) Draw the structures of the two monomers used to produce this polymer. Structure Linear polymers - Compounds formed from very long chains with no branches, also known as dimensional polymers. Polyester, Acrylic, Polyamide & Aramyd. Question 2. PET Fibers (Mylar, Dacron, and Terylene) have excellent crease and wear resistance and low moisture absorption, and cloth made from PET exhibts good wrinkle resistance. Structure, properties, spectra, suppliers and links for: Perylene, 198-55-0. PP is among the cheapest plastics available today. So Polyester, Draylon, Terylene, Kevlar and Nylon are all condensation polymers. (iii) To make ethyle glycol which is used to prepare Terylene (iv) To prepare other important chemicals like ethyl alcohol (C 2 H 5 OH), acetaldehyde (CH 3 CHO) etc. Important Questions for Class 12 Chemistry Chapter 15 Polymers Class 12 Important Questions Polymers Class 12 Important Questions Very Short Answer Type Question 1. The alcohol is ethane-1,2-diol (old name: ethylene glycol). What is the linkage between the units in fats and also in Terylene? 28. The crystal structure of polyethylene terephthalate (Terylene) has been determined by the interpretation of the X-ray diffraction patterns given by drawn fibres. To form one polymer, the two monomers react in equal quantities. 33 (Adapted Stein & Brown method) Melting Pt (deg C): 235. It squeezed women's bodies and crushed their internal organs to the point of broken ribs. n trademark a synthetic polyester fibre or fabric based on terephthalic acid, characterized by lightness and crease resistance and used for clothing,. The rights were purchased by duPont in 1946 who subsequently developed the related similar fiber, Dacron ®. In this reaction, two or more molecules combine to make a large molecule whose structure repeats throughout its length. PP belongs to polyolefin family of polymers and is one of the top. The fibres are also used in ropes, and nylon can be cast into solid shapes for cogs and bearings in machines, for example. The unit cell, which contains one chemical unit, —CO. Nylon (a polyamide) and Terylene (a polyester) are both man-made fibres. Terylene was exhibited to the Imperial Chemical Industries in 1946, and by 1948 the first polyester lace curtains were commercially available. Write the name and structure of the monomer of the following polymer: Terylene Monomers of terylene are Terephthalic acid (1,4 benzene dicarboxylic acid) and ethylene glycol (1,2 ethanediol). Cover the structure with this after filling in between the lintels with polystyrene sheets. polyurethane d. The high sulphur proteins attract water molecules allowing wool to absorb up to 30% of its weight in water. The benzene rings in the molecular chain give them a rigid structure, leading to high melting. Polyester fleece is a soft, fuzzy fabric used for sweaters, sweat shirts, jackets, mittens, hats, blankets, and in any other applications where a warm, wool-like material is needed. Give one advantage and one disadvantage of recycling objects made from Terylene. Matrix - This makes wool absorbent, fire-resistant, and anti-static. Calculate the depression in the freezing point of water when 10 g of CH 3 CH 2 CHClCOOH is added to 250 g of water. Thread Weight; Fiber Types; Thread Processing; Thread Construction Methods. Insects fly into the tent wall and are funnelled into a collecting vessel attached to highest point. Q: "What is the chemical structure of polyester?" Polyesters are a class of polymers formed as a result of polycondensation (step-growth polymerization) of a dialcohol with a diacid (or diester). Whinfield and Dickson along with inventors W. fermentation d. Chapter 13 - Organic Chemistry Introduction Organic chemistry is the study of carbon based compounds. Polyethylene - Its Properties and Uses. This is an example of forming a polymer from two different monomers. Polyester resins are known for their excellent combination of properties such as mechanical, thermal, chemical resistance as well as dimensional stability. This article sheds light on the effect of creep strain [ϵ(t); %] on the optomechanical properties and some structure properties of terylene fibers at several constant applied loads. We are surrounded by objects, most of which, some way or the other have a polymer associated with them. Synthetic polymers are man-made polymers such as nylon (polyamide) and terylene (polyester). Perylene dyes are useful for their intense visible light absorption, high stability, electron accepting ability, and unity quantum yields. The alcohol is ethane-1,2-diol (old name: ethylene glycol). Monomers are heated at 503 K. The introduction of Dacron ® rope in 1953 changed things again. 24 ; view full answer. With high compression flexibility, crease-resistant, heat-resistance, chemical stability, elasticity, insulation and minimal moisture (0. Want to thank TFD for its existence?. This often causes confusion - not only is the chemically similar PBT also a (thermoplastic) polyester, the most common resin system used in GRP is also a. (iii) Terylene Answer: Question 6: Describe the classification of polymers on the basis of structure. Polymers are large molecules built from small units (monomers). You are not required to know the monomers for Nylon, nor the structure of the product. All polyesters have ester linkage (—COO—) in common. Terrycot is a blend of terylene and cotton, whereas terrywool is a blend of terylene and wool. For improving the product performance of wood derived materials new ways of separating them from wood are required. Specifically, starch is composed of the sugar glucose. Natural fabrics have been used for clothing since ancient times. Terylene can be drawn into thin fibres that can be woven like any other yarn. Telavancin versus vancomycin fort he treatment of complicated skin and skin-structure infections associated with surgical procedures. Keywords: HDPE, long chain macromolecule, thermoplastic, plastic welding. (i) Linear polymer: These polymers consist of long and straight chains. They, working with others, created the first polyester fiber called Terylene in 1941, which was followed by many other types and brands of polyester fibers. Structure of the polymer The propene molecule is asymmetrical, and, when polymerized, can form three basic chain structures dependent on the position of the methyl groups: two are stereoregular (isotactic and syndiotactic) and the third does not have a regular structure and is termed atactic as shown diagrammatically below:. monomer o terylene is. Preparation. Its chemical resistance properties and ease of fabrication make it popular in the chemical industries. The polyester is the choice of fiber and fabric for many industries. These NCERT Solutions for Class 12 of Chemistry subject includes detailed answers of all the questions in Chapter 15 - Polymers provided in NCERT Book which is prescribed for class 12 in schools. The fabric we now know as polyester began its climb toward its current critical role in the contemporary economy in 1926 as Terylene, which was first synthesized by W. PET is the most widely used polyester. Crystalline structure can be thought of as the highest level of order that can exist in a material, while an amorphous structure is irregular and lacks the repeating pattern of a crystal lattice. Engineering polymers include natural materials such as rubber and synthetic materials such as plastics and elastomers. 5 °C Jean-Claude Bradley Open Melting Point Dataset 17326: 274 °C Jean-Claude Bradley Open Melting Point Dataset 20070: 277 °C Jean-Claude Bradley Open Melting Point Dataset 28416, 28417, 28418: 278 °C Jean-Claude Bradley Open Melting Point Dataset. Label each structure you draw with the correct letter L, M, N, P or Q. Terylene Picture Terylene is used to make fishing nets clothes (quick-dry, non-iron) cassette and video tapes Issue in using synthetic polymer Synthetic polymers have multiple uses in daily life because of the following properties: Light and strong Cheap Withstand corrosion and chemical reaction Withstand action of water. Addition polymers: Polyvinyl chloride, Polythene Condensation polymers: Terylene, Bakelite 5. Polyethylene terephthalate is produced from ethylene glycol and dimethyl terephthalate (DMT) (C 6 H 4 (CO 2 CH 3) 2) or terephthalic acid. Which type of reaction is used to produce both of these polymers? a. Polymer - The word 'polymer' is the Greek word : poly means many and mer means unit or parts, A Polymer is a large molecule that comprises repeating structural units joined by the covalent bonds. polypropylene e. Thus, there is a great demand for a better understanding of the ultrastructure of wood and how the components are interaction on a molecular level in building up its properties. Six hand pasters wore personal lead-in-air samplers for two weeks. The hydrolysis gives glycerol and. here the direction is in the direction of chain axis. Which of the following is an addition polymer with the same structure as polyethylene except that one hydrogen on every other carbon is replaced by a benzene ring? a. Important Questions for Class 12 Chemistry Chapter 15 Polymers Class 12 Important Questions Polymers Class 12 Important Questions Very Short Answer Type Question 1. This fibre, commonly known as Terylene or Dacron, is widely used in clothing (for example, in suits, shirts and skirts) either alone or in blends with other manufactured or natural fibres, principally cotton. The process is known as. Bakelite is a polymer made up of the monomers phenol and formaldehyde. Instead of double bonds, these monomers have functional groups (like alcohol, amine, or carboxylic acid groups). 24 ; view full answer. For 3-D Structure of Nylon Molecular Structure using Jsmol. The Structural Causes of Variation in Dyeing Properties of Terylene Yarn Subjected to Dry and Wet Heat Article in Coloration Technology 88(4):142 - 148 · October 2008 with 5 Reads. The repeat unit below shows the structure of cellulose. (c) Nylon and Terylene are synthetic polymers. Addition polymers: Polyvinyl chloride, Polythene Condensation polymers: Terylene, Bakelite 5. It is a step growth, linear copolymer. Natural polymers: The polymers which are obtained naturally are called natural polymers. Structure of Terylene. a brand name…. Uses of polyamides. Terylene definition: 1. Ethylene Glycol 2. Terylene (noun) an artificial textile fibre made from a polyester, used to make light, crease-resistant clothing, bed linen, and sails. NCERT Solutions for Class 12 Chemistry Chapter 15 Polymers includes all the important topics with detailed explanation that aims to help students to understand the concepts better. Terylene or Kevlar, and, in the running rigging, cotton ropes have been replaced by polymers also. The main difference between Polyester and Terylene is that the Polyester is a category of polymers and Terylene is a polymer. 33 (Adapted Stein & Brown method) Melting Pt (deg C): 235. The reaction is a condensation polymerisation reaction where the hydroxyl group of one monomer forms an ester link with the carboxyli c acid group of the other monomer. The monomers of terylene are ----1. Another patent was filed in 1973 by Nathaniel Wyeth for PET bottles, which he used for medicines. g branching, size, shape, crystallinity. , have an open structure) and those that contain ring-shaped molecular groups—particularly the large hydrocarbon aromatic groups. change the double bond in the monomer to a single bond in the repeat unit. This fibre, commonly known as Terylene or Dacron, is widely used in clothing (for example, in suits, shirts and skirts) either alone or in blends with other manufactured or natural fibres, principally cotton. Log Octanol-Water Partition Coef (SRC): Log Kow (KOWWIN v1. : High-density polyethylene: HDPE: Inert, thermally stable, tough and high tensile strength Bottles, pipes, inner insulation (dielectric) of coax. The fibres are also used in ropes, and nylon can be cast into solid shapes for cogs and bearings in machines, for example. Chemical- based on functional group in their structure - inert as it's a large hydrocarbon chain. History: The Polyester, Terylene ®, was developed by Imperial Chemical Industries in 1941. Reviewing addition polymerisation vs. Kevlar is similar in structure to nylon-6,6 except that instead of the amide links joining chains of carbon atoms together, they join benzene rings. com : Tuosite Terylene Waterproof Sun Shade Sail UV Blocker Sunshade Patio Rectangle Knitted 220 GSM Block Fabric Pergola Carport Awning 10' x 13' in Color Iron Red : Garden & Outdoor. Now some woven terylene sheeting… The kind they use to reinforce the ground in earth-fill dams. (v) As a general anaesthetic. Answer: Linear polymer: Those polymers in which monomer units are joined by straight chain, e. addition b. Miller and H. Draw the structure of one organic product from this substitution reaction. PET is the most widely used polyester. The fibres, now known to be terylene, were prepared by Dr. Raw Materials The main raw materials required for the manufacture of Terylene polyester fibres are p-xylene ethylene glycol and methanol. It is durable, inexpensive and resistant to heat, water and chemicals. Write the name and structure of the monomer of the following polymer: Terylene Monomers of terylene are Terephthalic acid (1,4 benzene dicarboxylic acid) and ethylene glycol (1,2 ethanediol). Two interesting comments on polymer constitution can be made in connection with polyesters. Bakelite is a polymer made up of the monomers phenol and formaldehyde. Polyester resins are known for their excellent combination of properties such as mechanical, thermal, chemical resistance as well as dimensional stability. Terylene definition: 1. Let's Talk About Thread. Polymer means many monomers. Developed in a 20th-century laboratory, polyester fibers are formed from a chemical reaction between an acid and alcohol. The fibres are also used in ropes, and nylon can be cast into solid shapes for cogs and bearings in machines, for example. The monomer bis(2-hydroxyethyl) terephthalate can be synthesized by the esterification reaction. Our Terylene dome tweeter features curvilinear formers that extend response and lower resonance. You may wish to know in some detail how these 24 atoms are arranged in the molecule of glucose - the structural formula. Polymers are large molecules built from small units (monomers). CHEMISTRY A 2 Structure determination Question Answer It produces one single peak to the right of all other peaks and does not interfere with other peaks; it is volatile. This phenol-formaldehyde resin is a thermosetting polymer. Preparation of Terylene. Polyethylene, PVC, Polypropylene, Nylon 6 Co Polymers A polymer consist of monomers of different chemical structure are called copolymers. : High-density polyethylene: HDPE: Inert, thermally stable, tough and high tensile strength Bottles, pipes, inner insulation (dielectric) of coax. Explain why Kevlar has a higher melting point than Terylene. 42): Boiling Pt (deg C): 549. Ca 2+ ions are coordinated in cubic fashion (CN=8) while F - ions are tetrahedrally coordinated (CN=4). Low diffusion coefficient makes PET much more suitable than other plastic materials for use as a recovered, recycled material. 4 x 10-3, K f = 1. Polyethylene terephthalate (PET or PETE) is a general-purpose thermoplastic polymer which belongs to the polyester family of polymers. Finally, polymers like PVC are extensively used for is less severe—a far greater proportion of the cost of the structure is that associated with labor or with production and fabrication. It finds major uses in the textile and packaging industries. Terylene,Bakelite, Polyvinyl chloride,Polythene. Here is a monomer: Here is a polymer: A polymer can be made up of thousands of monomer. a) Write partial structure of: i) Neoprene ii) Terylene (Dacron) iii) Nylon - 6 b) Explain the preparation of Buna-N with equation. Cold moulding is a composite method of wooden boat building that uses two or more layers of thin wood, called veneers, oriented in different directions, resulting in a strong monocoque structure, similar to a fibreglass hull but substantially lighter. Buna-N is a copolymer of 1,3-butadiene and acrylonitrile whereas Buna-S is a copolymer of 1,3-butadiene and styrene. The ease of molding polymers into different shapes and. Low diffusion coefficient makes PET much more suitable than other plastic materials for use as a recovered, recycled material. change the double bond in the monomer to a single bond in the repeat unit. 022-62211530. Terylene synonyms, Terylene pronunciation, Terylene translation, English dictionary definition of Terylene. Natural polyesters and a few synthetic ones are biodegradable, but. In this reaction, two or more molecules combine to make a large molecule whose structure repeats throughout its length. Another patent was filed in 1973 by Nathaniel Wyeth for PET bottles, which he used for medicines. But nowadays, synthetic fibres are largely used for clothing and other purposes. In addition, polyester combines well with natural fibers, such as cotton. Addition polymers: Polyvinyl chloride, Polythene. This is a really good video to show you the difference and to explain it. Astbury and Mr. monomer o terylene is. Soap is a product of the hydrolysis of fat. Its chemical formula is C 6 H 12 O 6, and this empirical formula is shared by other sugars - called hexoses - 6 carbon sugars. The chemical formula of polypropylene is (C3H6)n. 86 K kg mol-1. Polyester, Acrylic, Polyamide & Aramyd. Monomers are heated at 503 K. Log Octanol-Water Partition Coef (SRC): Log Kow (KOWWIN v1. ethanoic propanol. These four elements constitute about 95% of your body weight. n trademark a synthetic polyester fibre or fabric based on terephthalic acid, characterized by lightness and crease resistance and used for clothing,. In America, it is produced as the name "Dacron". Twisted molecular chain and helical coil - these protein chains work much like springs and give. Write the names and structure of the monomer of the following polymer : (i) Terylene (ii) Teflon (iii) Nylon-6,6. Instead of double bonds, these monomers have functional groups (like alcohol, amine, or carboxylic acid groups). Q:-Calculate the depression in the freezing point of water when 10 g of CH 3 CH 2 CHClCOOH is added to 250 g of water. ARISING from the recent communication by Prof. 4 x 10-3, K f = 1. You may wish to know in some detail how these 24 atoms are arranged in the molecule of glucose - the structural formula. The high sulphur proteins attract water molecules allowing wool to absorb up to 30% of its weight in water. terylene,physical properties,suppliers,CAS,MSDS,structure,Molecular Formula, Molecular Weight ,Solubility,boiling point, melting point. Fabrics woven or knitted from Polyester thread or yarn such as Terylene, Dacron, Lycra or Vycron are the most prejudicial fabrics for our body. change the double bond in the monomer to a single bond in the repeat unit. [2] (iii) Salicylic acid reacts with 3-hydroxypropanoic acid to form a mixture of condensation polymers. Polymer - The word 'polymer' is the Greek word : poly means many and mer means unit or parts, A Polymer is a large molecule that comprises repeating structural units joined by the covalent bonds. Natural polyesters and a few synthetic ones are biodegradable, but. Students who are preparing for their Class 12 exams must go through NCERT Solutions for Class 12 Chemistry Chapter 15 Polymers. Q:-Give the IUPAC names of the following compounds:(i) PhCH 2 CH 2 COOH (ii) (CH 3) 2 C=CHCOOH (iii) (iv) Give the IUPAC names of the following compounds: (i) PhCH 2 CH 2 COOH (ii) (CH 3) 2 C=CHCOOH (iii) (iv) Q:-A compound is formed by two elements M and N. introduction: Terylene is a practical example of polyester. Which of the following is an addition polymer with the same structure as polyethylene except that one hydrogen on every other carbon is replaced by a benzene ring? a. In homologues additional naphthalene units are added, forming compounds — or poly (peri-naphthalene)s — such as perylene, terrylene and quarterrylene. 5 Explain the difference between Buna- N and Buna-S. 67 estimate) = 8. condensation c. Apart from obvious uses in textiles for clothing and carpets, a lot of nylon is used to make tyre cords - the inner structure of a vehicle tyre underneath the rubber. Buna-N is a copolymer of 1,3-butadiene and acrylonitrile whereas Buna-S is a copolymer of 1,3-butadiene and styrene. Kevlar is similar in structure to nylon-6,6 except that instead of the amide links joining chains of carbon atoms together, they join benzene rings. (ii) Branched chain polymers: These polymers contain linear chains having some branches. The main difference between Polyester and Terylene is that the Polyester is a category of polymers and Terylene is a polymer. APPLICATIONS. Structure of Terylene: Authors: Astbury, W. The first page of this article is displayed as the abstract. or opaque and white (particle size up to a few micrometers) depending on its crystal structure and particle size. Let us briefly discuss these natural polymers: Starch: It is a polymer which forms the food reserve for all the. Write the names and structure of the monomer of the following polymer : (i) Terylene (ii) Teflon (iii) Nylon-6,6. Ask your question. Organic compounds are made primarily of carbon. 33 (Adapted Stein & Brown method) Melting Pt (deg C): 235. Terylene,Bakelite, Polyvinyl chloride,Polythene. Names of Poly terephthalate fiber. Polymers are very useful materials because their structures can be altered and tailored to produce materials 1) with a range of mechanical properties 2) in a wide spectrum of colors and 3) with different transparent properties. The hydrolysis gives glycerol and. It is an ortho- and peri-fused polycyclic arene and a member of perylenes. It is elastic, highly durable, wrinkle-free. The different uses of polyesters depend on their structure. Answer: Linear polymer: Those polymers in which monomer units are joined by straight chain, e. Terylene* L. Telavancin versus vancomycin fort he treatment of complicated skin and skin-structure infections associated with surgical procedures. (ii) Buna-S is a copolymer of Styrene and 1, 3-Butadiene (H 2 C = CH - CH = CH 2) formed by addition polymerization. 64 (Mean or Weighted MP) VP(mm Hg,25 deg C): 8. The importance and uses of polyesters. The fabric we now know as polyester began its climb toward its current critical role in the contemporary economy in 1926 as Terylene, which was first synthesized by W. by Heba Soffar · Published May 23, 2015 · Updated April 18, 2020. Terylene was exhibited to the Imperial Chemical Industries in 1946, and by 1948 the first polyester lace curtains were commercially available. Polyethylene terephthalate is the basis of synthetic fibers such as polyester, dacron, and terylene. The reaction is a condensation polymerisation reaction where the hydroxyl group of one monomer forms an ester link with the carboxyli c acid group of the other monomer. Predicted data is generated using the US Environmental Protection Agency's EPISuite™. T~ELO~ The value oJ Young's modulus E for the crystal of Terylene in the direction of the chain axis is calculated from the force constants for bond stretching and valence angle deformation. Polyester resins are known for their excellent combination of properties such as mechanical, thermal, chemical resistance as well as dimensional stability. It finds major uses in the textile and packaging industries. Classify the following as addition and condensation polymers. The two monomers are benzene-1,4-dicarboxylic acid and 1,4-diaminobenzene. Log Octanol-Water Partition Coef (SRC): Log Kow (KOWWIN v1. 67 estimate) = 8. 1 Classification of Polymers - Classification based on Source, Structure, Mode of Polymerisation, Molecular Forces and Growth Polymerisation; 8. It is obtained by heating a mixture of ehtylene. This phenol-formaldehyde resin is a thermosetting polymer. You are not required to know the monomers for Nylon, nor the structure of the product. Addition polymers: Polyvinyl chloride, Polythene. In this reaction, two or more molecules combine to make a large molecule whose structure repeats throughout its length. Recently Viewed Questions of Class 12th chemistry. Part of a polymer molecule has the following structure. It quickly became a very popular fabric because of its versatility. Predicted data is generated using the US Environmental Protection Agency's EPISuite™. They, working with others, created the first polyester fiber called Terylene in 1941, which was followed by many other types and brands of polyester fibers. The second polyester fiber was Dupont's Dacron. It can be tricky to draw the repeat unit of poly. Terylene,Bakelite, Polyvinyl chloride,Polythene. hydrolysis 21. [3] [Total: 9]. nylon 6, 6 c. polyvinyl chloride b. Which pairing of names correctly identify the two compounds? acid alcohol a. This article sheds light on the effect of creep strain [ϵ(t); %] on the optomechanical properties and some structure properties of terylene fibers at several constant applied loads. The union yarn comprises the following components by mass percentage: 78-85%of terylene fibers, 5-15% of viscose fibers and 5-15% of bamboo fibers. The ease of molding polymers into different shapes and. (a) In 1865, Kekulé proposed a model for the structure and bonding of benzene, but there is considerable evidence to suggest that Kekulé's model may not be correct. Which structure is an isomer of that shown above? 29. This page looks at the formation, structure and uses of a common polyester sometimes known as Terylene if it is used as a fibre, or PET if it used in, for example, plastic drinks bottles. Besides that, technologic fabrics popular for wrinkle-free, wear resistance, drying up properties and water and wind resistance are also produced with Polyester fibers and are not recommended for people. 1 Classification of Polymers - Classification based on Source, Structure, Mode of Polymerisation, Molecular Forces and Growth Polymerisation. This often causes confusion - not only is the chemically similar PBT also a (thermoplastic) polyester, the most common resin system used in GRP is also a. Chemical & Physical Resistance Data for Fibres : The chemical & physical resistance data for fibres is divided into these two tables: Tabla 1. Probably the most unsafe clothing item ever introduced in the name of fashion was the corset. addition b. The alcohol is ethane-1,2-diol (old name: ethylene glycol). high density polymer. polypropylene e. polystyrene. n trademark a synthetic polyester fibre or fabric based on terephthalic acid, characterized by lightness and crease resistance and used for clothing,. This diagram of Diethyl terephthalate, better known as Terylene a precursor of polyester, is one of a group of crystal structure drawings that inspired textiles made by the Festival Pattern Group for the event. (CH 2 ) 2 O\chembond{1,0} , is triclinic, with a = 4\cdot 56 angstrom, b = 5\cdot 94 angstrom, c = 10\cdot 75 angstrom, α = 981/2 degrees, β = 118. (Details of manufacture and mechanisms of these polymerisations are not required. 42): Boiling Pt (deg C): 549. Different polymers are built from different monomers and have varying linkages between the monomers. The material was announced in 1938 and the first nylon products; a nylon bristle toothbrush made with nylon yarn (went on sale on February 24, 1938) and more famously, women's. Ethylene glycol is a synthetic liquid substance that absorbs water. It is crease resistant, has high moisture absorption and has a high tensile strength. Synthesis. Polyethylene - Its Properties and Uses. The fibres are also used in ropes, and nylon can be cast into solid shapes for cogs and bearings in machines, for example. Bakelite is a polymer made up of the monomers phenol and formaldehyde. Classify the following as addition and condensation polymers. Mon to Sat - 10 AM to 7 PM. Terylene definition: 1. Students can solve NCERT Class 12 Chemistry Polymers MCQs Pdf with Answers to know their preparation level. Write the name and structure of the monomer of the following polymer: Terylene Monomers of terylene are Terephthalic acid (1,4 benzene dicarboxylic acid) and ethylene glycol (1,2 ethanediol). Natta of Imperia and Karl Ziegler of Germany were awarded the Nobel Prize for Chemistry in 1963 for the development of Ziegler-Natta. The temperature of about 258 ° C. Terrycot is a blend of terylene and cotton, whereas terrywool is a blend of terylene and wool. Polyethylene terephthalate is the basis of synthetic fibers such as polyester, dacron, and terylene. introduction: Terylene is a practical example of polyester. What does the part '6, 6' mean in the name nylon-6, 6? (Delhi, All India 2009) Answer: […]. Like nylon, it is popular for the use in making synthetic textiles. are the examples of natural polymers. Fabric construction and weight: In general, tighter knits or weaves create less breathable fabrics, while more open knits or looser weaves will be more breathable than tight ones. H O O H C O H HO C O O Draw a diagram to show the repeat unit of Terylene. Terylene (noun) an artificial textile fibre made from a polyester, used to make light, crease-resistant clothing, bed linen, and sails. addition b. Nylon, Terylene, Polyethylene, Polystyrene, Synthetic rubber, Nylon, PVC, Bakelite, Teflon etc. Although some stiffening treatments and certain dyes can may result in the ignition of nylon and terylene. Natural fabrics have been used for clothing since ancient times. It is with increasing interest that wood materials are now being considered as a green resource. Astbury and Mr. It can be tricky to draw the repeat unit of poly. Nylon (a polyamide) and Terylene (a polyester) are both man-made fibres. Q:-Calculate the depression in the freezing point of water when 10 g of CH 3 CH 2 CHClCOOH is added to 250 g of water. high density polymer. Terylene requires little time and effort to clean. History: The Polyester, Terylene ®, was developed by Imperial Chemical Industries in 1941. addition b. Terephthalic Acid Terylene is a synthetic fibre used for making clothes. com : Tuosite Terylene Waterproof Sun Shade Sail UV Blocker Sunshade Patio Rectangle Knitted 220 GSM Block Fabric Pergola Carport Awning 10' x 13' in Color Iron Red : Garden & Outdoor. It finds major uses in the textile and packaging industries. Thus Terylene is made by polymerising using ester exchange reation between dimethyl teraphthlate and ethylene glycol. 42): Boiling Pt (deg C): 549. ARISING from the recent communication by Prof. The fibre was first created in 1941 by chemist J R WHINFIELD of Accrington who sold the patent rights to the chemical company ICI. Keywords: HDPE, long chain macromolecule, thermoplastic, plastic welding. Depending on its processing and thermal history, polyethylene terephthalate may exist both as an amorphous (transparent) and as a semi-crystalline polymer. 58 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1. Terylene worsted means that worsted wool was used in the blend. Structure Linear polymers - Compounds formed from very long chains with no branches, also known as dimensional polymers. It quickly became a very popular fabric because of its versatility. The polyester is the choice of fiber and fabric for many industries. Part of a polymer molecule has the following structure. Nylon is a synthetic polymer, a plastic, invented on February 28, 1935 by Wallace Carothers at the E. It is durable, inexpensive and resistant to heat, water and chemicals. Polyester resins are known for their excellent combination of properties such as mechanical, thermal, chemical resistance as well as dimensional stability. high density polymer. Which pairing of names correctly identify the two compounds? acid alcohol a. Students can solve NCERT Class 12 Chemistry Polymers MCQs Pdf with Answers to know their preparation level. Iron is an element with atomic symbol Fe, atomic number 26, and atomic weight 55. The results recently reported by Astbury and Brown from work done in 1944 are in general agreement with those which we obtained some two years earlier. The monomers for condensation polymerization have two main characteristics:. Perylene dyes are useful for their intense visible light absorption, high stability, electron accepting ability, and unity quantum yields. Another useful polyester is produced from benzene-1,4-dicarboxylic acid and propane-1,3-diol (which replaces ethane-1,2-diol). (Structure of Buna-S) (iii) Neoprene Monomer is Chloroprene. Let's Talk About Thread. 64 (Mean or Weighted MP) VP(mm Hg,25 deg C): 8. It is an ortho- and peri-fused polycyclic arene and a member of perylenes. Learn more. We cannot deny the presence of polymers in our lives. A monomer is a molecule that is able to bond in long chains. Terylene is highly resistant to the action of chemical and biological agents. com : Tuosite Terylene Waterproof Sun Shade Sail UV Blocker Sunshade Patio Rectangle Knitted 220 GSM Block Fabric Pergola Carport Awning 10' x 13' in Color Iron Red : Garden & Outdoor. • Describe the formation of nylon (a polyamide) and Terylene (a polyester) by condensation polymerisation, the structure of nylon will be represented. Draw the repeating unit of the polyester Terylene that is made from benzene-1,4-dicarboxylic acid and ethane-1,2-diol. Calculate the depression in the freezing point of water when 10 g of CH 3 CH 2 CHClCOOH is added to 250 g of water. Polyethylene terephthalate is the basis of synthetic fibers such as polyester, dacron, and terylene. Thread Weight; Fiber Types; Thread Processing; Thread Construction Methods. (CH 2) 2 O—, is triclinic, with a = 4. Nylon and terylene are synthetic fibres which undergo the condensation polymerisation process. In addition, polyester combines well with natural fibers, such as cotton. Condensation Polymerisation Reaction to Form Terylene (a polyester). Terylene - a kind of polyester. Label each structure you draw with the correct letter L, M, N, P or Q. in Terylene. The dye uptake of Terylene (TCI) subjected to dry and live-steam heat can be characterised by a constant defined as the uptake divided by the square root of time (A/t), as in equations for diffusion. The long staple gives the finished product stability and a smooth, clear finish. Polymer Structure. Besides that, technologic fabrics popular for wrinkle-free, wear resistance, drying up properties and water and wind resistance are also produced with Polyester fibers and are not recommended for people. Predicted data is generated using the US Environmental Protection Agency's EPISuite™. NCERT Solutions for Class 12 Chemistry Chapter 15 Polymers includes all the important topics with detailed explanation that aims to help students to understand the concepts better. 58 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1. 24 ; view full answer. (Delhi, All India 2009) Answer: Buna-S, Buna-N. It is durable, inexpensive and resistant to heat, water and chemicals. The fibre was first created in 1941 by chemist J R WHINFIELD of Accrington who sold the patent rights to the chemical company ICI. APPLICATIONS. Synthetic polymers are man-made polymers such as nylon (polyamide) and terylene (polyester). Work out the structure of the polyester by putting it together from the monomers as shown in the diagram with the water molecules being removed. Apart from obvious uses in textiles for clothing and carpets, a lot of nylon is used to make tyre cords - the inner structure of a vehicle tyre underneath the rubber. The crystal structure of polyethylene terephthalate (Terylene) has been determined by the interpretation of the X-ray diffraction patterns given by drawn fibres. Common Brand Names: Arnite, Dacron, Hostaphan, Impet, Melinar, Melinex, Mylar, Rynite, Terylene, Trevira General Description: General Description: The most common thermoplastic polyester, this polymer is often called just "polyester". , have an open structure) and those that contain ring-shaped molecular groups—particularly the large hydrocarbon aromatic groups. They are stable at high temperatures. Sometimes polymers are also known as macromolecules or large-sized molecules. add a bond to each end of the repeat unit. The acid is benzene-1,4-dicarboxylic acid (old name: terephthalic acid). are the examples of natural polymers. You are not required to know the monomers for Nylon, nor the structure of the product. The ease of molding polymers into different shapes and. Thread Weight; Fiber Types; Thread Processing; Thread Construction Methods. The semicrystalline material might appear transparent (particle size less than 500 nm ) or opaque and white (particle size up to a few micrometers ) depending on its crystal structure and particle size. It is obtained by heating a mixture of ehtylene. Dacron (Terylene) is obtained by the condensation polymerization of ethylene glycol (1,2-Ethanediol) and dimethylterephthalate. Structure Linear polymers - Compounds formed from very long chains with no branches, also known as dimensional polymers. Astbury and Mr. Glucose is a sugar molecule made up of carbon (C), hydrogen (H), and oxygen (O) with a basic chemical formula of C6H12O6. Structure of Terylene: Authors: Astbury, W. com : Tuosite Terylene Waterproof Sun Shade Sail UV Blocker Sunshade Patio Rectangle Knitted 220 GSM Block Fabric Pergola Carport Awning 10' x 13' in Color Iron Red : Garden & Outdoor. [1] (ii) Draw the structures of the two monomers used to produce this polymer. The different uses of polyesters depend on their structure. Predicted data is generated using the US Environmental Protection Agency’s EPISuite™. Students who are preparing for their Class 12 exams must go through NCERT Solutions for Class 12 Chemistry Chapter 15 Polymers. Birtwhistle and C. Nylon is a synthetic polymer, a plastic, invented on February 28, 1935 by Wallace Carothers at the E. 86 K kg mol-1. Monomers bond together to form a polymer. Terephthalic Acid Terylene is a synthetic fibre used for making clothes. Their low-protrusion, 1-inch Terylene tweeters produce crisp high-frequency details and enable smooth installation with your factory grilles. are the examples of natural polymers. , of the discovery of a new fibre-forming polymer permits the publication of the following short account of an X-ray investigation carried out on this material in the summer of 1944. The name ‘terylene fabric’ may also refer to any large class of synthetic fabric. They based their invention on the earlier work of Wallace Carothers. Stainless steels, most. Log Octanol-Water Partition Coef (SRC): Log Kow (KOWWIN v1. Terylene - a kind of polyester. 94 Å, c = 10. The structure B represents terylene. Brown 1 concerning the structure of 'Terylene', we wish to place on record the earliest investigation of its structure by the X-ray method. Today, some scientists believe restrictive bras suppress the lymphatic system — which flushes toxins from your breasts and lymph nodes and helps prevent breast. Structure of 'Terylene'. 94 Å, c = 10. Elements & Macromolecules in Organisms Most common elements in living things are carbon, hydrogen, nitrogen, and oxygen. Terylene:- It is a polymer of ehtylene glycol (ethane-1,2-diol) and terephthalic acid(benzene-1,4-dicarboxylic acid). Terylene (noun) an artificial textile fibre made from a polyester, used to make light, crease-resistant clothing, bed linen, and sails. Its ceramic motor structure also helps lower system resonance and extend low-frequency response for better dispersion in the midrange to deliver clear and detailed high frequency response at up to 40 kHz for a realistic reproduction of. The material was announced in 1938 and the first nylon products; a nylon bristle toothbrush made with nylon yarn (went on sale on February 24, 1938) and more. Polyester, Acrylic, Polyamide & Aramyd. polypropylene e. Classify the following as addition and condensation polymers. PROPERTY: UNIT: VALUE / RANGE: PREFERRED: Molar Volume V m: mL mol-1: 208. Monomers bond together to form a polymer. Affiliation: Abstract THE recent joint announcement by the Calico Printers&' Association and Imperial Chemical Industries, Ltd. Students should be able to: draw the repeating unit from monomer structure(s) draw the repeating unit from a section of the. or opaque and white (particle size up to a few micrometers) depending on its crystal structure and particle size. Thinner materials and finer yarns also affect breathability. These fibres resemble natural fibres but more resistant to stress and chemicals, and more long-lasting. 75 Å, α = 98 1/2°, β = 118°, γ = 112°. It squeezed women's bodies and crushed their internal organs to the point of broken ribs. Many of the substances that we encounter on a daily basis are organic compounds: drugs, plastics, textiles, dyes, paper, food, vitamins, etc. Polypropylene is a tough, rigid and crystalline thermoplastic produced from propene (or propylene) monomer. (ii) Buna-S is a copolymer of Styrene and 1, 3-Butadiene (H 2 C = CH – CH = CH 2) formed by addition polymerization. In addition, polyester combines well with natural fibers, such as cotton. 64 (Mean or Weighted MP) VP(mm Hg,25 deg C): 8. These are about the formation of polyesters like Terylene. hydrolysis 21. Since the union yarn of terylene fibers, viscose fibers and bamboo fibers fully combines the favorable properties of terylene. Calculations of Elastic Moduli of Polymer Crystals. Terylene:- It is a polymer of ehtylene glycol (ethane-1,2-diol) and terephthalic acid(benzene-1,4-dicarboxylic acid). Terylene fibres are strong and elastic in nature. Nylon is a man-made synthetic fiber that is strong while very light in weight, properties that lead to a wide variety of uses, such as fabric, rope and luggage. (Delhi, All India 2009) Answer: Buna-S, Buna-N. US name (trademark): Dacron ThesaurusAntonymsRelated WordsSynonymsLegend: Switch to new thesaurus Noun 1. introduction: Terylene is a practical example of polyester. monomer o terylene is. 33 (Adapted Stein & Brown method) Melting Pt (deg C): 235. : High-density polyethylene: HDPE: Inert, thermally stable, tough and high tensile strength Bottles, pipes, inner insulation (dielectric) of coax. Now do your back-filling. The structural and genetic materials of living organisms are organic compounds. Addition and. Another useful polyester is produced from benzene-1,4-dicarboxylic acid and propane-1,3-diol (which replaces ethane-1,2-diol). They based their invention on the earlier work of Wallace Carothers. 94 Å, c = 10. Its ceramic motor structure also helps lower system resonance and extend low-frequency response for better dispersion in the midrange to deliver clear and detailed high frequency response at up to 40 kHz for a realistic reproduction of. Its powerful ceramic motor structure also lowers system resonance and extends low- frequency response for better dispersion in the critical midrange, delivering clear and detailed high-frequency response for realistic reproduction of vocals and instruments. 1 mark 1 mark 1 mark 2 marks 1 mark 2 marks Chromatography. Recently Viewed Questions of Class 12th chemistry. Calculate the depression in the freezing point of water when 10 g of CH 3 CH 2 CHClCOOH is added to 250 g of water. Addition polymers: Polyvinyl chloride, Polythene Condensation polymers: Terylene, Bakelite 5. High-Resolution Polk Terylene Tweeter. The material was announced in 1938 and the first nylon products; a nylon bristle toothbrush made with nylon yarn (went on sale on February 24, 1938) and more. (c) Nylon and Terylene are synthetic polymers. Calculations of Elastic Moduli of Polymer Crystals. polyvinyl chloride b. change the double bond in the monomer to a single bond in the repeat unit. 4 x 10-3, K f = 1. Students should be able to: draw the repeating unit from monomer structure(s) draw the repeating unit from a section of the. a brand name for a type of artificial material, or cloth made from this material 2. Terylene is mostly used for clothing, ropes, sheets, sails and many others. The acid is benzene-1,4-dicarboxylic acid (old name: terephthalic acid). The lightweight neodymium motor structure of these 100W Polk Audio marine coaxial speakers delivers power-efficient performance. A synthetic polyester fiber used to surgically repair damaged sections of heart muscle and blood vessel walls. Let's Talk About Thread. High-Resolution Polk Terylene Tweeter. (iii) Terylene Answer: Question 6: Describe the classification of polymers on the basis of structure. Also known as dacron, terylene is a condensation polymer of ethylene glycol and terephthalic acid. Related Structure: Antifluorite (Na 2 O). a brand name…. THE recent joint announcement by the Calico Printers' Association and Imperial Chemical Industries, Ltd. -CH 2-CH 2-CH 2-CH 2-CH 2-CH 2-From which substance is this polymer made? a. Ethylene Glycol 2. The fibres, now known to be terylene, were prepared by Dr. ethanoic butanol b. Polyethylene terephthalate, or PET, a strong, stiff synthetic fiber and resin, and a member of the polyester family of polymers. APPLICATIONS. 4 x 10-3, K f = 1. 1 Classification of Polymers - Classification based on Source, Structure, Mode of Polymerisation, Molecular Forces and Growth Polymerisation. 022-62211530. Predicted data is generated using the US Environmental Protection Agency’s EPISuite™. The basic structure of perylene pigments. Terylene* L. Polypropylene, Polyvinyl, Politetrafluoro-Etilenica, Glass & Cotton. The two monomers are benzene-1,4-dicarboxylic acid and 1,4-diaminobenzene. Recently Viewed Questions of Class 12th chemistry. The higher the quality of the thread, the less special handling will be required. Insects fly into the tent wall and are funnelled into a collecting vessel attached to highest point. 5 points Hii Draw structure of terylene Ask for details ; Follow Report by Jains3525 07. add a bond to each end of the repeat unit. They are stable at high temperatures. Chapter 13 - Organic Chemistry Introduction Organic chemistry is the study of carbon based compounds. Polyhedra - Edge-sharing , edge-sharing. Monomers bond together to form a polymer. The rights were purchased by duPont in 1946 who subsequently developed the related similar fiber, Dacron ®. a) Write partial structure of: i) Neoprene ii) Terylene (Dacron) iii) Nylon - 6 b) Explain the preparation of Buna-N with equation. APPLICATIONS. The unit cell, which contains one chemical unit, \chembond{1,0} CO. (iii) To make ethyle glycol which is used to prepare Terylene (iv) To prepare other important chemicals like ethyl alcohol (C 2 H 5 OH), acetaldehyde (CH 3 CHO) etc. Natural polymers: The polymers which are obtained naturally are called natural polymers. The main difference between Cotton and Terylene is that the Cotton is a plant fiber from the genus Gossypium and Terylene is a polymer. Natural polyesters and a few synthetic ones are biodegradable, but. Related Structure: Antifluorite (Na 2 O). Bakelite is a polymer made up of the monomers phenol and formaldehyde. The dye uptake of Terylene (TCI) subjected to dry and live-steam heat can be characterised by a constant defined as the uptake divided by the square root of time (A/t), as in equations for diffusion. Each type of thread has specific characteristics and will. 8(2), 2827-2838. Poly (ethylene terephthalate) Poly (ethylene terephthalate) known by the trade names Mylar, Decron , terylene, Recron, has high crystalline melting temperature (260°C), and the stiff polymer chains in the PET. Stainless steels, most. ) Making nylon (a polyamide): The monomers are: But they are represented like this:. 2 Condensa-tion Poly-merisation or Step Growth poly-merisation G. Such as low density polythene. Six hand pasters wore personal lead-in-air samplers for two weeks. Twisted molecular chain and helical coil - these protein chains work much like springs and give. Glucose is an example of a carbohydrate which is commonly encountered. These two polymers will be covered in more detail down below. 64 (Mean or Weighted MP) VP(mm Hg,25 deg C): 8. They are crease resistant hence require very less ironing. It is a two-sided pile material, meaning that both the front and back surface of the fabric sprouts a layer of cut fibers, similar to corduroy or velvet. Polyester, Acrylic, Polyamide & Aramyd. 2020 Log in to add a. You are very important to us. The alcohol is ethane-1,2-diol (old name: ethylene glycol). In addition, polyester combines well with natural fibers, such as cotton. Classify the following as addition and condensation polymers. The main objective of this market research is to help the readers understand the structure of Terylene - Polyethylene Terephthalate market, market definition, overview, industry opportunities and. 33 (Adapted Stein & Brown method) Melting Pt (deg C): 235. This fibre, commonly known as Terylene or Dacron, is widely used in clothing (for example, in suits, shirts and skirts) either alone or in blends with other manufactured or natural fibres, principally cotton. PET- Terylene- a common polyester The -1 here is because at each end of the chain the H and OH are still present Terylene fabric is used in clothing, tire cords Ethane-1,2-diol Benzene-1,4-dicarboxylic acid C O OH C O HO Using the carboxylic acid to make the ester or amide would need an acid catalyst and would only give an equilibrium mixture. It squeezed women's bodies and crushed their internal organs to the point of broken ribs. Terylene definition: 1. The chemical formula of polypropylene is (C3H6)n. monomer o terylene is. Give an example of elastomers. Students should be able to: draw the repeating unit from monomer structure(s) draw the repeating unit from a section of the polymer chain. This often causes confusion - not only is the chemically similar polybutylene terephthalate (PBT) also a (thermoplastic) polyester, the most common resin system used in GRP is also a polyester system - and also often called just "polyester". For 3-D Structure of Nylon Molecular Structure using Jsmol. It is elastic, highly durable, wrinkle-free. Abstract The objective of this paper was to investigate the contact angles of single bamboo fibers at different temperatures and relative humidities in comparison to terylene fibers. Terylene is a synthetic polyester fibre produced by polymerizing ethylene glycol and terephthelic acid which is obtained from petroleum. Organic compounds are made primarily of carbon. 276-280 °C Alfa Aesar: 277-279 °C OU Chemical Safety Data (No longer updated) More details: 273-278 °C Merck Millipore 3612, 820969: 273. Carothers in the UK. 8(2), 2827-2838. Calorie-wise, a gram of carbohydrate provides 4. (ii) Buna-S is a copolymer of Styrene and 1, 3-Butadiene (H 2 C = CH - CH = CH 2) formed by addition polymerization. Another patent was filed in 1973 by Nathaniel Wyeth for PET bottles, which he used for medicines. N is a carboxylic acid with a branched carbon chain and does not show stereoisomerism. , of the discovery of a new fibre-forming polymer permits the publication of the following short account of an X-ray investigation carried out on this. Properties. Its molecular structure provides the key to its versatility. Each monomer has at least two reactive sites, which usually means two functional groups. They absorb very little water and hence dry quickly. They are resistant to attack of moths and fungi. (iii) Terylene Answer: Question 6: Describe the classification of polymers on the basis of structure. Permanent-press fabrics, disposable soft-drink bottles, compact discs, rubber tires, and enamel. Instead of double bonds, these monomers have functional groups (like alcohol, amine, or carboxylic acid groups). It is done using sodium hydroxide (as opposed to acid, in digestion). Its chemical resistance properties and ease of fabrication make it popular in the chemical industries. a) Write partial structure of: i) Neoprene ii) Terylene (Dacron) iii) Nylon - 6 b) Explain the preparation of Buna-N with equation. [17] The former is a transesterification reaction, whereas the latter is an esterification reaction. Abstract THE recent joint announcement by the Calico Printers&' Association and Imperial Chemical Industries, Ltd. Special features. a brand name for a type of artificial material, or cloth made from this material 2. Polyethylene Terephthalate or PET products are 100% recyclable and is the most recycled plastic worldwide. PP belongs to polyolefin family of polymers and is one of the top. Terylene was exhibited to the Imperial Chemical Industries in 1946, and by 1948 the first polyester lace curtains were commercially available. We cannot deny the presence of polymers in our lives. It squeezed women's bodies and crushed their internal organs to the point of broken ribs. Preparation. The precise composition and structure of these repeating units vary widely, but roughly speaking they can be grouped into chains that are aliphatic (i. Monomer - The small molecule or repeating unit or the building block in the structure of polymer is called monomer. Log Octanol-Water Partition Coef (SRC): Log Kow (KOWWIN v1. Drivers and the Myth of Tweeter Dome Materials One recent morning, I put on a new CD I'd received from Amazon, an orchestral work—California Suite - plus several piano concertos, by an obscure and overlooked 20th Century American composer, Hubert Headley, and relaxed with my second mug of coffee. This fiber was first introduced in the 1930s as an early substitute for silk; it eventually became the fiber of choice for women's stockings. M is an ester that shows E-Z stereoisomerism. The alcohol is ethane-1,2-diol (old name: ethylene glycol). Carothers in the UK. Its ceramic motor structure also helps lower system resonance and extend low-frequency response for better dispersion in the midrange to deliver clear and detailed high frequency response at up to 40 kHz for a realistic reproduction of. com : Tuosite Terylene Waterproof Sun Shade Sail UV Blocker Sunshade Patio Rectangle Knitted 220 GSM Block Fabric Pergola Carport Awning 10' x 13' in Color Iron Red : Garden & Outdoor. Twisted molecular chain and helical coil - these protein chains work much like springs and give. addition b. The structure B represents terylene. The formation, structure and uses of a common polyester known as terylene or PET POLYESTERS This page looks at the formation, structure and uses of a common polyester sometimes known as Terylene if it is used as a fibre, or PET if it used in, for example, plastic drinks bottles. (ii) The repeat unit of Terylene® is shown below. 1 Condensation polymers (A-level only) The repeating units in polyesters (eg Terylene) and polyamides (eg nylon 6,6 and Kevlar) and the linkages between these repeating units. History: The Polyester, Terylene ®, was developed by Imperial Chemical Industries in 1941. Our Terylene dome tweeter features curvilinear formers that extend response and lower resonance. Terylene* L. Nylons and Terylene(polyester), both are thermoplastic fibre's, shrink from the flame and tend no to ignite.


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