Melamine is a thermosetting plastic which is resistant to fire and can tolerate heat better than other plastics. Polyethylene, polypropylene, polyvinyl chloride, polystyrene, polybenzimidazole, acrylic, nylon and Teflon are examples of thermoplastics. What Are Examples of Thermoplastics? This category has only the following subcategory. The cure may be done through heat, a chemical reaction with and added material, or irradiation. These cannot be reused. Which one of the following is an example of thermosetting polymers? Reason: In thermosetting plastics, the polymeric chains are held together by strong covalent bonds. the plastics which can be softened even after they have set and hardened; the plastics which require heat and pressure to mould them into shape; both a. and b. none of the above 5. Magnesium can be significantly strengthened by cold work.t/f. All the other three are example of thermoplastic. For a saturated hydrocarbon: the bonds are all single bonds. B) A Liner Polymer . Things like, keyboards, tools, doors, kitchen utensils, are made out of thermosetting plastic. 1 Answer/Comment. a) Thermosetting plastics. Bakelite is an example of thermosetting polymer. Another example is Melamine which has a capacity to resist fire and heat much efficiently than other plastics. a) Nylon. Which of the following is a thermosetting plastic A) PVC B) TEFLON C) BAKELITE D) NYLON PLEASE FRIENDS PLEASE ANSWER THIS QUESTION URGENTLY 2 See answers Brainly User Brainly User Example of Thermosetting plastic ans = Bakelite option C thanks Manishapriyadarshini Manishapriyadarshini Bakelite.....is the correct answer New questions in Science . D) Proteins _____ 5. Answer – Saucepan handles are made of thermosetting plastics because thermosetting plastics are poor conductor of heat. A. polyethylene B. a linear polymer C. a branched polymer D. a cross-linked polymer. c) Nylon. Thermo-softening plastic, or thermoplastic, becomes soft and flexible at a certain temperatures and solidifies on cooling. By Staff Writer Last Updated Apr 9, 2020 8:11:28 AM ET. C) A Branched Polymer. Thermosetting plastics are normally made up of lines of polymers which are highly cross-linked. Which of the following is an example of a synthetic polymer? Search for an answer or ask Weegy. Favorite Answer. Reason: Vulcanisation is a free radical initiated chain reaction. Which of the following are common undesirable properties of plastics? Thermoset materials are those materials that are made by polymers joined together by chemical bonds, acquiring a highly crosslinked polymer structure.. d) Wood 8 Bakelite and Melamine are examples of. 7 Which of the following is Non-biodegradable. Question 42. You can refer to NCERT Solutions for Class 8 Science Chapter 3 Synthetic Fibres and Plastics to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams. Understand the Key Differences Between Thermoplastic and Thermosetting Plastic with detailed explanations and examples. Thermosetting plastic recycling. … and cooled? asked Jun 20 in Chemistry by BhratJha (44.3k points) synthetic fibers and plastics; class-8 ; 0 votes. B) Plastics. (a) Saucepan handles. s. Log in for more information. C) A Branched Polymer. Initially, the polymer is a liquid or soft solid. name the undesirable plants grow along … Q10) Which of the following statements regarding thermoplastics and thermosetting plastics isincorrect A) Bakelite is a thermoplastic B) PVC is an example of thermoplastics C) Thermoplastics can be moulded again and again D) Thermosetting plastics cannot be moulded again and again - Science - These polymers are cross linked or heavily branched molecules, which on heating undergo extensive cross linking in moulds and again become infusible. Synthetic Fibres and Plastics Class 8 MCQs Questions with Answers. what are some examples of thermosetting plastics? At room temperature, they are available in the form as liquids. Thermosetting Plastic - Thermosetting plastics are made up of long lines of molecules that are cross-linked. 1 answer. The heavily cross-linked structure produced by chemical bonds in thermoset materials is directly responsible for the high mechanical and physical strength compared with thermoplastics or elastomers. Chemistry Questions & Answers for Bank Exams : Which of the following is an example of thermosetting plastic? Which of the following characteristics does not affect the properties of plastics? Other Thermosetting Plastic Types. Thermosetting plastic is a hard plastic. d) Rayon 9 Fire proof plastic uniform worn by fire fighters has a coating of _____ to make it fire resistant. Originally Answered: What is an example of … Glenguin. Examples of thermosetting plastics include phenolic resins, amino resins, polyester resins, silicon resins, epoxy resins, and polyurethanes. D) A Cross-Linked Polymer _____ 4. A monomer is a: molecule from which a polymer is synthesized. Although we do not typically work with them, there are a number of other thermosetting polymers available: Epoxies; Melamine; Silicone; Urea Formaldehyde ; Tell us about your project. Assertion: In vulcanisation of rubber, sulphur cross links are introduced. 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. Author has 4.8K answers and 4.6M answer views. 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. An excellent example is polyurethane foam. Explain why the following are made of thermosetting plastics. (Select all that apply) Monomer. Such a material is also known as a thermoset or thermosetting polymer. A cross-linked polymer is an example of a thermosetting polymer. 2 Answers. polystyrene. Which of the following are thermosetting polymers? SR Questions; 1: Which one of the following class of compounds is obtained by polymerization of acetylene? (b) Electric plugs/ switches / plugboards. Which of the following is an example of a thermosetting polymer? Thermoset - definition, properties and examples of thermoset . It is used to make electrical switches and handles of utensils. Some common examples are bakelite, urea-formaldelyde resins, etc. Which of the following is true of thermoplastic polymers? Thermoplastic and thermosetting plastics come in a wide range of material options and can serve a variety of applications as long as the material limitations cannot cause product failure under the intended operating conditions. Lv 7. It is used in kitchenware and fabrics as well as floor tiles. Thermosetting materials are . Thermosetting plastic, typically processed by reaction injection molding, contains polymers that combine together during the curing process to form a permanent chemical bond.. Thermosetting Plastic: Some plastics do not get deformed on heating, and cannot be re-molded into a … A) Polyethylene. Choose the correct option in the following questions: It is used to make floor tiles, kitchenware and fire resistant fabrics. A) Bakelite B) PVC C) Polyethylene D) No option is correct. Thermosetting Plastic Advantages and Disadvantages b) Plastic bag, c) Cotton cloth. zack Mccarthy/CC-BY 2.0 . Their molecular structure ; Their degree of polymerization; Both a. and b; None of the above 4. 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. c) Melamine plastic. Low-density polyethylene. Answer Save. Which of the following organic compounds polymerises to form the polyester dacron? Polyethylene is a very common polymer. Question. b) Silk. Proteins, enzymes, starches, and cellulose are examples of: natural polymers important in biological and physiological processes in plants and animals. Bakelite is a thermosetting plastic which is a poor conductor of heat and electricity. Which of the following is not a property of thermosetting polymers : - No correct response has been provided - Thermosetting polymers have a relatively high melting point. What is a Thermoset? 2: Polymer used in bullet proof glass is: 3: Which of the following is a condensation homopolymer? Relevance. Thermosetting plastics are polymer materials which are liquid or malleable at low temperatures, but which change irreversibly to become hard at high temperatures.. Subcategories. Some other examples of thermoset plastic polymers include silicones, vulcanized rubber, epoxies, polyesters and phenolics. C) Cellulose . (Select all that apply) Poor high temperature performance Poor mechanical properties. Examples of thermoset plastic polymers include epoxies, phenolics, silicones, and polyesters. Thermoset plastics are frequently used for sealed products due to their resistance to deformation and are also among some of the most impact resistant plastics available. Choose the thermoplastics and thermosetting plastics from the following: Melamine, Polythene, Bakelite, Polyvinyl chloride. Answer – Electric plugs/switches/plug boards are made of thermosetting plastic are poor conductor of electricity. Get an answer. A) They CAN NEVER be melted. what are the properties of thermosetting plastics when heate. b) Rayon. The … Although thermosetting plastics cannot be melted into new products, they can still be reused for other applications. Explanation: Melamine is an example of thermosetting plastic. A) Starch. a) Woolen clothes. 1 Buna; 2 Bakelite; 3 Neoprene; 4 Nylon - 6 SHOW CORRECT ANSWER. Asked 11/25/2015 11:25:46 PM. Search for jobs related to Examples of thermosetting plastics or hire on the world's largest freelancing marketplace with 18m+ jobs. Thermosets are polymer materials that irreversibly cure to a stronger form. Question 41. Email. Thermosetting Plastic Advantages: More resistant to high temperatures Report . Thermoplastic & Thermosetting plastic – A Summary. widely produced synthetic plastic polymer, including for old records. The examples of Thermoplastics are as follows. A thermosetting plastic is a polymer that irreversibly becomes rigid when heated. Updated 11/26/2015 10:27:33 AM . Heat provides energy for chemical reactions that increase the cross-linking Which of the following is not a limitation of magnesium and magnesium alloys? 1:50 2.7k + Eg:- Bakellite, Urea, Formaldehyde, Resin, etc . It's free to sign up and bid on jobs. Polyethylene; Poly Vinyl Chloride(PVC) Teflon; Thermosetting Plastics or Thermoset Plastics: By heating the polymer, if it turns hard, then it is called as Thermosetting plastic material. Which of the following are advantages of using thermoplastic polymers instead of thermosetting polymers? 1 decade ago . Osborne only utilizes the thermosetting resins that will offer clients the best combination of utility and value. Which of the following is an example of a thermosetting polymer? The polymeric chains are held together by chemical bonds, acquiring a crosslinked. Initially, the polymeric chains are held together by chemical bonds, acquiring a crosslinked... & Answers for Bank Exams: which of the following class of compounds is obtained by of... By strong covalent bonds are the properties of plastics, starches, and polyesters high Explain! 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