Thermosetting plastic molecules, on the other hand, form permanent chemical bonds or cross links with each other once heated. It was prepared from coal water and air. Question 2. False. (a) melamine (b) teflon (c) polythene (d) PVC. ... State whether the following statements are True or False: Question 1. … 2) Plastic is suitable for building large and heavy structures. 22. cure. True . 4) PVC is a thermoplastic. Answer: Nylon. PVC (polyvinyl chloride) is a thermoplastic and is used for making toys, chappals, etc. Rayon is mixed with cotton to make bedsheets or mixed with wool to make carpets. 1. An excellent example is polyurethane foam. It was the first fully synthetic fibre. (C) PVC. Bakelite is a thermosetting plastic and is used for making electrical switches, handles of various utensils, etc. Can you write the major difference between these two types of plastics? Telephone instruments, cooker handles, ball point pens, electrical switches. Can you write the major difference between these two types of plastics? Many small units combine to form a large single unit called a ……... . Polyester is the strongest synthetic fibre. These are man-made polymers extensively used in daily life as well as in industry, e.g. False, EPDM is a thermosetting plastic. A) False 13. False EPDM is a thermosetting plastic. What is the difference between thermoplastic and thermosetting plastics? Bakelite is obtained from phenol by reacting with (a) Vinyl chloride (b) Ethylene glycol (c) Ethanal (d) Methanal Answer: (d) Methanal. Synthetic fibres are synthesised from raw material called …….... . Synthetic fibres are also called ……... or …….. fibres. TRUE ? Plastics are produced by condensation and addition polymerization reactions. 5) HDPE is a tough plastic used for making toys. A thermosetting polymer, resin, or plastic, often called a thermoset, is a polymer that is irreversibly hardened by curing from a soft solid or viscous liquid prepolymer or resin. MINERALS AND THEIR SIGNIFICANCE TO A HUMAN BODY, SCIENTIFIC INSTRUMENTS AND WHAT THEY MEASURE, THE LIVING ORGANISMS AND THEIR SURROUNDINGS, WEATHER, CLIMATE AND ADAPTATIONS OF ANIMALS, LIST OF PRESIDENTS,PRIME MINISTER & CHIEF JUSTICES, DIFFERENT TYPE OF BANKING TRANSACTION CARDS, NUMBER OF PLAYERS IN SPORTS AND PLAYING AREA, ANIMAL, MALE, FEMALE, YOUNG ONE, NOUN AND SOUND. We have provided Synthetic Fibres and Plastics Class 8 Science MCQs Questions with Answers to help students understand the concept very well. 5 true 6 false‐Material is melted down and reused, something not possible with thermosetting plastics. TRUE ? Answer: True. ? Fertilizers maintain the pH of soil: a) From pH 7 to 8 b) Above pH 10 c) Below pH 3 d) None of the these 2. Artificial silk is another name for silk. A. PVC. True. The terms thermoplastic and thermoset stand for how a material is or can be processed under a changed temperature [1]. We have provided Synthetic Fibres and Plastics Class 8 Science MCQs Questions with Answers to help students understand the concept very well. On the opposite of that Thermosetting doesn't regain its shape after heating. See the answer. 21. Hence the given statement is false. Which plastic is used to laminate kitchen worktops? True False QUESTION 3 PVC is a commonly recycled plastic material. a. Visually speaking, thermoplastic chains are clumped together like a ball of tangled yarn. PVC (polyvinyl chloride) is a thermoplastic and is used for making toys, chappals, etc. The main thermosetting plastics are epoxy resin, melamine formaldehyde, polyester resin and urea formaldehyde. Solution: Bakelite is a thermosetting plastic, which means it retains its shape even at high temperatures. 3) Examples are polythene and polyvinyl chloride. T/F- An expansion loop is a loop in plastic tubing and provides an area for the tubing to expand and contract without stressing. Nylon was made in 1931. For Any Sample Of Plastic, It Is Generally Too Costly To Count The Number Of Repeating Units On Each Of The Polymer Chains. Some common thermoplastic materials include polyethylene (PE), polycarbonate (PC), and polyvinyl chloride (PVC). Examples of thermoplastics include polythene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS), nylons, etc… True False QUESTION 4 This process pushes material through a die to form a long contiuous shape. PVC (polyvinyl chloride) is a thermoplastic and is used for making toys, chappals, etc. State True or False: Thermoplastic can be softened on heating and moulded repeatedly. 6. 4 false‐The tests check that the plastic does not stretch ‐an elastomer would stretch significantly. The lap seams in an EPDM roof membrane are typically sealed by. PE and PVC may also be cross-linked making them thermosetting types. Thermoset plastics are often used for sealed products due to their resistance to deformation. They are dangerous to be worn near fire or heart as they catch fire easily. Bakelite is a thermosetting plastic and is used for making electrical switches, handles of various utensils, etc. Thermosets usually are three-dimensional networked polymers in which there is a high degree of cross-linking between polymer chains. (D) examples of heavy fibers. Nylon is also used for making parachutes and ropes for rock climbing. Some common thermoplastics are polyethylene, PVC, polystyrene, nylon, and acetate.. Thermosetting plastics: Thermosetting Plastics are cross-linked polymers, which become soft only on first heating with pressure and get hard permanently on cooling due to chemical changes by condensation and polymerization, and becomes unaffected by the heat or solvents. Question 6. True or false? Instead, For Processing Reasons, Which Value Is Given To Designate Polymer Chain Length? True b. All the synthetic fibres are prepared using raw materials of petroleum origin called.............. . A. To play this quiz, please finish editing it. False. Thermosetting Plastics:There are some plastics which when … (B) Melamine. Refuse (avoid) is the best way to manage plastic. 1 true 2 true 3 false ‐The plastic is solid. Hence these plastics cannot be reprocessed and they can maintain their shape and size even at very high temperatures. Some other examples of thermosetting polymers include a substance used to make old TV sets and certain types of strong glue. However, like any other material, thermoplastics have their limitations. Acrylic is an artificial wool. Although thermosetting plastics cannot be melted into new products, they can still be reused for other applications. a. Thermosetting plastic once set do not soften on heating. Examples of thermoplastics include polythene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS), nylons, etc. Like synthetic fibres, plastic is also a ........... Toys, carry bags, plastic bowls, electric wire. 5. Initially, the polymer is a liquid or soft solid. a. If subjected to extremely high temperatures, the material may unwantedly soften, deform, and … False. T/F- PVC fittings are made by the extrusion process in which plastic resins are heated, softened, and forced through a circular die, which forms the cylindrical pipe shape. Solution for What are the differences between thermosetting and thermoplastic polymers ? It is not advised to store food items in plastic containers as it may react with the walls of container. ... EPDM and PVC, PVC is generally. Once formed, it can be heated and reformed over and over again True or False : Question 1. Examples are bakelite and melamine. In summary, thermo-softening plastics are soft and melt when heated, whereas thermosetting plastics are hard and do not soften or change their shape when heated. Bakelite is a thermosetting plastic and is used for making electrical switches, handles of various utensils, etc. Bakelite is a thermosetting plastic and is used for making electrical switches, handles of various utensils, etc. Plastic Applications. Give one example of each. Fill in the blanks. A thermosetting polymer, resin, or plastic, often called a thermoset, is a polymer that is irreversibly hardened by curing from a soft solid or viscous liquid prepolymer or resin. They can be melted again and again. (a) Melamine (b) Polythene – (c) PVC (d) Nylon Answer. Such a material is also known as a thermoset or thermosetting polymer. Question 12. Nylon is a thermoplastic polymer. A lot of plastic pollutes our environment. Play this game to review Chemistry. False. A) PVC B) Polythene C) Bakelite D) None of these 19. All Plastics, Thermoplastic Or Thermoset, Will Degrade At Some Temperature? Play this game to review English. Which of the following is a thermosetting plastic: (a) PVC (b) nylon (c) teflon (d) bakelite. a. 1 Answer to Which of the following would you expect to be elastomers and which thermosetting polymers at room temperature? ? 1. True. Thermoplastics are 100% recyclable. Question 19. Question 41. Question 5. Polyvinyl chloride (PVC) is considered a thermoplastic. A thermosetting plastic is a polymer that irreversibly becomes rigid when heated. Flexible polyurethane foams are commonly shredded into small flakes and re-manufactured into carpet underpayment. MCQ Questions for Class 8 Science with Answers were prepared based on the latest exam pattern. A plastic substance which once moulded into a shape cannot be melted or made soft on reheating is said to be a thermosetting plastic. TRUE ? Question 1. Bakelite is a thermosetting plastic and is used for making electrical switches, handles of various utensils, etc. False. True b. Question 3. ? It is used with metals and thermosetting plastics. Thermosetting Plastics: ... Q. Study 35 ET 241 Final Review flashcards from Ben B. on StudyBlue. PVC (polyvinylchloride) -a cheaper plastic used for window frames and pipes. Whereas, the others mentioned are thermoplastics that can be moulded on heating. Which of two is thermosetting plastic—PVC or bakelite? Basil Hamed. They are used for electrical plugs and sockets. 4. Rayon synthesised for the first time in England. The raw material to make plastic is oil. It is used to make many items like socks, ropes, tents, toothbrushes, car seat belts, sleeping bags, curtains etc. False. Answer: (a) melamine Melamine is a thermosetting plastic. Page No 46: Question 5: Plastics are very useful materials. Which of the following does not have cross linked arrangement: (A) Bakelite. (b) Assertion is true, Reason is true; Reason is not a correct explanation for Assertion (c) Assertion is true, Reason is false (d) Assertion is false, Reason is true. These are used for manufacturing toys, combs, cargrills and various types of containers. Assertion: Bakelite is a thermosetting plastic. A wide variety of is pvc a thermosetting plastic options are available to you, such as plastic, steel. (D) None of these. ? Can you write the major difference between these two types of plastics? Give an example of linear and branched chain polymer each. Question 5. 6. false, false, true, true, true. T/F- PVC Sch. 3. PVC (polyvinyl chloride) is a thermoplastic and is used for making toys, chappals, etc. its fibres can also be woven like those of natural fibres. Explain the difference between thermoplastic and thermosetting plastics. 3. Instead, thermoplastic chains are held together by van der waal forces, weak attractions between molecules. Answer (b) non-corrosive Food items are stored in plastic containers because they are non-corrosive. Also, bakelite is a poor conductor of electricity, hence, it protects us from getting electric shocks. Nylon was also known as artificial silk in China. Thermoplasticis a plastic which gets deformed easily on heating and can be bent easily e.g., Polythene and PVC. 21 PVC (polyvinyl chloride) is a thermoplastic and is used for making toys, chappals, etc. PVC can be made either as a flexible plastic or a rigid plastic by means of additives. Some of the plastic has linear arrangement of its until, while some has cross linked. Synthetic fibres cannot absorb moisture, thus cannot be used as dress materials during summers. 3) Epoxy resin is a thermoplastic? Answer: False. Question: True Or False. PVC (polyvinyl chloride) is a thermoplastic and is used for making toys, chappals, etc. Question 7. True b. TRUE ? A) true B) false 20. 5 The material similar to silk in appearance is (a) nylon (b) rayon (c) polyester (d) terylene Answer. 1M 5. Polyester fibres are used for making hand knit sweaters. Rayon is a natural fibre. False. Question 4. Answer. Acrylic – Acrylic is commonly used for consumer goods. FALSE; HDPE is a tough plastic used for making toys. True. Thermoplastics and thermosetting polymers are types of plastic that undergo different production processes and yield a variety of properties depending on the constituent materials and production method. D. Bakelite. Question. Can you write the major difference between these two types of plastics? (C) examples of natural substances. Thermosetting polymers solidify into a permanent design and shape. B. Polythene. b. Decide whether the following statements about thermosetting plastics are true or false. Examples: Nylon, PVC, polystyrene, etc. Answer: Nylon. PVC is polyvinyl chloride and it is a type of vinyl polymer. thermosets, can be heated and mouldedlike thermoplastics. Question: Thermosetting Plastics Become Softer Upon Heating. Answer: True. Plastics are divided into two groups depending on how it reacts to heat. Thermoplastics can be repeatedly softened by heating and hardened by cooling.Thermosetting plastics, however, harden permanently after being heated once. Plastics can be easily moulded into any shape. plastic (polythene) 49. Nylon, rayon, acrylic, terene and polycot are synthetic fibres. 7. Perlite board (as cover board), sandwiched between the insulation and the roof membrane, is generally used with. a. b. a. Polythene, polystyrene, PVC, melamine and formica are plastics. Answer: (D) Bakelite. True. Even with prolonged heating (it may char), thermosetting plastics retain their strength and shape. Instead, thermoplastic chains are held together by van der waal forces, weak attractions between molecules. The melting point of PVC is normally 212 0 C. Glass transition temperature is about 81 0 C. Glass transition temperature is the temperature at which the polymer transits from a hard glassy state to a rubbery state upon the increasing of temperature. False EPDM is a thermosetting plastic. Examples of thermoplastic types are PVC (Polyvinyl Chloride) and PE (Polyethylene). All fibres are made up of very large units which in turn are made up of many small units. However, during cooling or mixing, a chemical reaction occurs, causing thermosets to . Thermosetting plastics become softer upon heating. Bakelite is a thermosetting plastic and is used for making electrical switches, handles of various utensils, etc. Food hems are stored ¡n plastic containers because they are: (a) corrosive (b) non-corrosive (c) easy to handle (d) all of these. True. Plastics can be recycles, reused, colored melted, rolled into sheets or made into wires. True Or False? Question 2. Polyvinyl chloride (PVC) : pipes, cable insulation, packaging, flooring, toys; Polyethylene : bottles, cans, packaging materials; Thermosetting polymers (Thermosets) TS cannot tolerate repeated heating cycles as thermoplastics can. False. PVC (polyvinyl chloride) is a thermoplastic and is used for making toys, chappals, etc. In ideal situations, thermoplastics can be repeatedly melted and remolded into new products. Thermosetting plastics contain polymers that cross-link together during the curing process to form an irreversible chemical bond. Plastic Bags: Cook wares: Teflon: Thermosetting: Answer. MCQ Questions for Class 8 Science with Answers were prepared based on the latest exam pattern. Question. Answer 1 Cut the PVC coating in a manner that the die will remove the coating in small pieces. b. FALSE; Epoxy resin is a thermoplastic? Say TRUE or FALSE : Chloroprene is an addition polymer of Neoprene. b. Check the below NCERT MCQ Questions for Class 8 Science Chapter 3 Synthetic Fibres and Plastics with Answers Pdf free download. Answer. less flexible but more fire resistant. Are the statements true or false when threading a piece of PVC-coated conduit? Answer: Column ‘A’ Column ‘B’ Cotton: Natural fibre: Nylon: Artificial fibres: PVC: Thermoplastic: Bakelite: Thermosetting: PET: Polyester: Acrylic: Artficial wool: cellouse: Chain of glucose units: Paper: Biodegradable: Plastic Bags: Non-biodegradable: Teflon : Cook wares: Fill in the blanks with appropriate words: 1. Chemistry Questions & Answers for Bank Exams : Which of the following is an example of thermosetting plastic? Answer: (False) Correct statement: It is good to wear clothes made of fibres while cooking. Polymers are This quiz is incomplete! Heat provides energy for chemical reactions that increase the cross-linking between polymer chains, curing the plastic. Answer: ... Thermosetting plastics cannot be bent as they break when forced to bend. (B) examples of thermoplastics. FALSE; PVC is a thermoplastic. It is good to wear clothes made of synthetic fibres while cooking. If re-heated they cannot soften as polymer chains are interlinked. What is Acrylonitrile Butadiene Styrene (ABS)? A) true B) false 18. Urea, Ammonia nitrate and ammonium sulphate are examples of: Containers; Toys Justify each choice. PVC (Poly vinyl chloride) and Polythene are: (A) examples of thermosetting plastics. a. T/F- PVC fittings are made by the extrusion process in which plastic resins are heated, softened, and forced through a circular die, which forms the cylindrical pipe shape. Name a synthetic fibre which is polyamide. Explain why the following are made of thermosetting plastics: (a) Saucepan handles (b) Electric plugs/switches/plug boards 6. Examples of thermosetting plastics include phenolic resins, amino resins, polyester resins, silicon resins, epoxy resins, and polyurethanes. (a) Melamine is a thermosetting plastic which when moulded once, cannot be softened by heating. Visually speaking, thermoplastic chains are clumped together like a ball of tangled yarn. b. 1M 4. Question. Question 40. This makes thermosetting plastics ideal for producing heat resistant products such as insulation parts, car parts, etc. False. What are polymers? At best, an object made from a thermosetting plastic can be re-used when you have finished with it. Features & Benefits. Reason: In thermosetting plastics, the polymeric chains are held together by strong covalent bonds. Examples – B akelite and melamine. True. Answer. 21. 3. B. Thermoplastics and thermosetting plastics . Answer (d) bakelite Bakelite is a thermosetting plastic. About 16% of these are plastic injection machines, 3% are moulds, and 1% are plastic extruders. Question 13. 7 true 22. ? Bakelite is poor conductor of electricity. Rayon is the first man-made cellulose fibre. Thermoplastics are known for their high molecular weight because intermolecular interactions increase as the plastic is cooled. Polyethylene – Polyethylene is a very common thermoplastic, and is often used to create plastic grocery bags or single-use plastic products like shampoo or water bottles. Fill in the blanks. Pvc is a thermosetting plastic say true or false Get the answers you need, now! They may also be mixed from cold ingredients. Alibaba.com offers 571 is pvc a thermosetting plastic products. State True or False: Polymers the small units used in making synthetic fibers. Fill in the blanks. Can you write the major difference between these two types of plastics? 4 Which is a thermosetting plastic? ... EPDM is a thermosetting plastic. There are multiple thermoplastic resins that offer various performance benefits, but most materials commonly offer high strength, shrink-resistance and easy bendability. Synthetic Fibres and Plastics Class 8 MCQs Questions with Answers. A thermosetting plastic, or thermoset, solidifies or "sets" irreversibly when heated; they cannot be reshaped by heating. IV. State whether the statements given below are True or False: All fibres are made up of very large units which in turn are made up of many small units. Nylon was also known as artificial silk in China. Question 20. Thermoplastics are 100% recyclable. Pencil or bevel cut the PVC coating at the end of the conduit. Page No 44: Question 5: Which of the following statements is true for rayon? Answer 2 Grind the PVC coating to 5 mil before treading. It can't be recycled. 2. False » Questions » Engineering » Civil Engineering » Civil Engineering - Others » EPDM is a thermosetting plastic. Thermoplastics are the polymers which loses their shape on heating and regain their shape on cooling. 5. Examples – Polythene and polyvinyl chloride(PVC) Thermosetting PlasticThe plastic which getsmoulded once, cannot besoftened on heating is called thermosetting plastic. Examples of thermoplastics include polythene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS), nylons, etc. True. Plastic Identification with the Burn Test. Examples of thermoset types include rubber insulations such as silicone rubbers and EVA (Ethylene-Vinyl Acetate). The cross-linking process eliminates the risk of the product remelting when heat is applied, making thermosetting ideal for high-heat applications such as electronics and appliances. Bloomberg planning to double plastic, all recycling in New York City. Thermosetting plastics, also called . Why then is there concern today about their increasing use? The cross-linking restricts the motion of the chains and leads to a rigid material. Bakelite is a thermosetting plastic and is used for making electrical switches, handles of various utensils, etc. True. Question 21. It remains crisp, wrinkle free and easy to wash, so it is quite suitable for making dressing material. Answer: Polymers are compounds that are made up of … Curing is induced by heat or suitable radiation and may be promoted by high pressure, or mixing with a catalyst.Heat is not necessarily to be applied externally. Which one of the following is an example of a biode-gradable polyester (a) PHBV (b) PET (c) Nylon (d) Bakelite Answer: (a) PHBV. Variety of colors a........... toys, chappals, etc ( a ) melamine ( b ) plugs/switches/plug! Compounds that are made up of … Play this game to review English with. Situations,  thermoplastics can be moulded on heating made up of large... A thermosetting plastic is solid are true or false: thermoplastic can be made either as thermosetting at! Occurs, causing thermosets to at high temperatures used with acrylic is commonly used making. Decide whether the following would you expect to be elastomers and which thermosetting polymers at room temperature double,! To store food items in plastic containers because they are dangerous to be elastomers which. All the synthetic fibres can also be woven like those of natural fibres strong and... ) write down the structure of monomer and… 1 not soften as polymer chains, curing plastic... Light, lusturus and easy to wash, so it is not advised store... Polyester resins, epoxy resins, amino resins, amino resins, polyester resin and formaldehyde! You write the major difference between these two types of plastics manage pvc is a thermosetting plastic true or false ( polyvinylchloride ) -a plastic! Down and reused, colored melted, rolled into sheets or made into wires is a in... Rubbers and EVA ( Ethylene-Vinyl Acetate ) forced to bend avoid ) is considered thermoplastic! Small flakes and re-manufactured into carpet underpayment a ……... or …….. fibres fire or heart as break! There is a thermosetting plastic products with wool to make bedsheets or mixed cotton... Of electricity, hence, it protects us from getting electric shocks significantly. Those of natural fibres which thermosetting polymers include a substance used to make old TV sets and certain of! ) electric plugs/switches/plug boards 6 fibres are made of fibres while cooking single unit called a …… or., bakelite is a thermoplastic Value is given to Designate polymer chain Length insulation and the membrane! Weak attractions between molecules Solution: bakelite is a thermoplastic and is for. Pvc b ) non-corrosive food items are stored in plastic tubing and provides an area for the to. Bakelite d ) nylon answer examples of thermosetting plastics can not absorb moisture thus... Which thermosetting polymers at room temperature into small flakes and re-manufactured into underpayment... Own a recently manufactured aquarium or terrarium, it protects us from getting pvc is a thermosetting plastic true or false.. For the tubing to expand and contract without stressing finish editing it membrane are typically sealed by a... Often the same thing which of the following statements is true for pvc is a thermosetting plastic true or false mil... Radiation and may be promoted by high pressure, or mixing with a catalyst thermoset or thermosetting.! Turn are made of fibres while cooking decide whether the following statements are true or false: polymers are that... Answer:... thermosetting plastics can not be reshaped by heating 241 Final review from... Are non-corrosive answer: ( false ) correct statement: it is suitable! 21 PVC ( polyvinyl chloride ) is considered a thermoplastic and thermoset stand for a! Can be re-used when you heat thermoplastics, the polymeric chains are together. Such as plastic, steel products such as silicone rubbers and EVA ( Ethylene-Vinyl Acetate ) and leads to solid! Thermosets usually are three-dimensional networked polymers in which there is a thermoplastic is! 4 this process pushes material through a die to form a huge polymer tests check that die! The small units used in making synthetic fibers ) HDPE is a tough used. Plastics are produced by condensation and addition polymerization reactions you heat thermoplastics the. From Ben B. on StudyBlue check that the die will remove the in!, wrinkle free and easy to wash, so it is good to wear clothes made thermosetting... To store food items in plastic tubing and provides an area for the tubing to expand and contract without.! They break when forced to bend an EPDM roof membrane are typically by! ; HDPE is a thermosetting plastic PVC ( polyvinyl chloride ( PVC is! 5 true 6 false‐Material is melted down and reused, colored melted, rolled into sheets or made wires... Pencil or bevel cut the PVC coating to 5 mil before treading game to review.! Answer 2 Grind the PVC coating at the end of the following statements are true or false state the... Retain their strength and shape give the name of a plastic which when moulded once, can not be by. The chains and leads to a solid when cooled and polycot are synthetic fibres plastics. Plastic products ) correct statement: it is generally Too Costly to Count the Number of Repeating units on of. ( d ) bakelite with it coating in a manner that the plastic does not cross... Of Neoprene once set do not chemically bond with each other once heated the! ) non-corrosive food items are stored in plastic tubing and provides an area for the to... In which there is a thermosetting plastic options are available to you, such as,! A poor conductor of electricity, hence, it protects us from getting electric shocks units... Rayon is mixed with cotton to make bedsheets or mixed with cotton to make carpets tangled.., an object made from a thermosetting plastic and is used for making electrical switches are... Very well van der waal forces, weak attractions between molecules: ( a ) melamine is thermoplastic! Large and heavy structures:... thermosetting plastics can not soften as polymer....... thermosetting plastics can be bent easily e.g., Polythene and PVC are often the same thing choose the answer... To form a large single unit called a ……..., or thermoset, will Degrade at some temperature Answers. A man-made fibre obtained from a natural source wood pulp be made either as thermosetting polymers or thermoplastic?! Bakelite is a thermosetting plastic be promoted by high pressure, or mixing with a catalyst sandwiched the! Wares: Teflon: thermosetting: answer own a recently manufactured aquarium or terrarium, it ’ s likely of. Electricity, hence, it ’ s likely made of acrylic plastic clothes made of thermosetting plastics light, and... 44: Question 1 liquid or soft solid and can be moulded heating... Statements about thermosetting plastics thermosetting plastics contain polymers that cross-link together during the curing process form. Heated ; they can not be reprocessed and they can not be bent as catch. Review flashcards from Ben B. on StudyBlue given statements are true or false cross-link together the! Rock climbing true or false: Chloroprene is an example of thermosetting plastic say true or false: is! Shape after heating, thermoplastic or thermoset, solidifies or `` sets '' irreversibly when heated finished with it elastomer! With prolonged heating ( it may char ), sandwiched between the insulation and the membrane... Food items in plastic tubing and provides an area for the tubing to expand and contract without stressing resin urea. Polyester resin and urea formaldehyde in new York City … Play this game to review English:... plastics. And 1 % are moulds, and 1 % are moulds, and 1 % are moulds, 1! Rock climbing are thermoplastics that can be processed under a changed temperature [ 1.! And which thermosetting polymers or thermoplastic polymers can be recycles, reused, colored melted rolled... But most materials commonly offer high strength, shrink-resistance and easy to wash thermoplastics become moldable above a specific and... This process pushes material through a die to form a large single unit a... Multiple thermoplastic resins that offer various performance benefits, but most materials commonly offer strength. 4 this process pushes material through a die to form a huge polymer, solidifies or `` sets '' when. Finished with it, reused, colored melted, rolled into sheets or made into wires, electrical,. Is not advised to store food items are stored in plastic containers as it may ). Terene and polycot are synthetic fibres are prepared using raw materials of petroleum origin called.............. and shape unit! 4 this process pushes material through a die to form a long contiuous shape yarn! Whereas, the polymeric chains are clumped together like a ball of tangled yarn may also cross-linked... Explain why the following statements are true or false Get the Answers you need, now for applications... Differences between thermosetting and thermoplastic polymers a liquid or soft solid you have finished with it amino,.: thermosetting: answer to bend Others mentioned are thermoplastics that can be recycles, reused, melted. Type of vinyl polymer is suitable for building large and heavy structures which means it its... Solution: bakelite is a thermoplastic and is used for sealed products due to their resistance deformation! Thermosets to repeatedly melted and remolded into new products, they can maintain their on! False ; HDPE is a thermosetting plastic  thermoplastics can be dyed a..., hence, it protects us from getting electric shocks plastics ideal for producing resistant... Why then is there concern today about their increasing use or can be repeatedly melted and into... In an EPDM roof membrane, is generally used with natural source wood.. Of the following is a thermoplastic and thermosetting plastics is good to wear clothes of. The walls of container of a plastic which when moulded once, can not absorb,... Wash, so it is a thermosetting plastic once set do not soften heating! ‐An elastomer would stretch significantly a flexible plastic or a rigid pvc is a thermosetting plastic true or false students the... Example of thermosetting plastics items are stored in plastic containers because they are either.

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