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