Biology. Which one of the following is an example of a thermosetting polymer? 18: Which is used in formation of nylon-66? A. polyethylene B. a linear polymer C. a branched polymer D. a cross-linked polymer Heat is not necessarily to be applied externally. It can't be revised once it is processed. Q. It can cure because of heating, owing to a chemical reaction, or following irradiation like processing by means of electronic beams. Answer: d Explaination: (d) Bakelite is cross linked thermosetting polymer of phenol and formaldehyde. These polymers are cross linked or heavily branched molecules, which on heating undergo extensive cross linking in moulds and again become infusible. epoxy. These polymers are cross linked or heavily branched molecules, which on heating undergo extensive cross linking in moulds and again become infusible. (b). Among the following, the weakest inter-particle forces of attraction are present in 1) Thermosetting polymers 2) Thermoplastic polymers 3) Fibres 4) Elastomers 33. Start studying Material Science Chapter 16. thermosetting polymer synonyms, thermosetting polymer pronunciation, thermosetting polymer translation, English dictionary definition of thermosetting polymer. Thermoplastic or Thermosetting? 500+ SHARES. A) thermosetting polymers B) addition polymers C) linear polymers D) cross-linked polymers - the answers to estudyassistant.com Thermosetting Polymers - They are highly cross - linked, hard, infusible and insoluble polymers.They cannot be reused. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Ex-Bakelite THERMOSETTING POLYMER. D) Proteins _____ 5. Bakelite is thermosetting phenol formaldehyde resin formed by an elimination reaction of phenol with formaldehyde. Which of the following is a thermosetting polymer? Answer: 1 question Which of the following can be classified only as a thermoplastic polymer? Which of the following is a thermosetting polymer? Q. Eg:- Bakellite, Urea, Formaldehyde, Resin, etc . Log in. A. Novolac, a condensation polymer of phenol and formaldehyde is a thermosetting polymer. 3) Thermoplastic 4) Thermosetting polymers 32. Which of the following is a thermosetting polymer? Bakelite is a thermosetting plastic which is a poor conductor of heat and electricity. As the temperature of an amorphous polymer decreases from the liquid state, the polymer changes from liquid to rubbery. Rest all are thermoplastic polymer. Which one of the following is an example of a thermosetting polymer? Thermosetting polymer composites are made using a laminating process, which binds together resins such as epoxy, silicone, melamine, etc. The chain growth process is usually much slower than the condensation process. 1. Thermosetting polymers: These polymers are cross linked or heavily branched molecules, which on heating undergo extensive cross linking in moulds and again become infusible. If the angular momentum of a body is found to be zero about a point, is it necessary that it will also be zero about a different. Define thermosetting polymer. The most common thermosetting resin used today is a polyester resin, followed by vinyl ester, and epoxy. [NH(CH 2)NHCO(CH 2) 4 CO] n. co-polymer. bakelite. Tags: Which of the following is an example of a thermosetting polymer? A. Novolac, a condensation polymer of phenol and formaldehyde is a thermosetting polymer. Tags: Question 18 . answer choices . In this reaction, a relatively small molecule is formed as a result of the polymerization reaction and may involve different monomers as starting or precursor molecules. Report an issue . Tags: Question 17 . Question. These polymers which are in the soft solid or viscous state on heating undergo extensive cross-linking in moulds and become irreversibly hard as well as insoluble products. AMU 2018: Which of the following is an example of thermosetting polymers? It … Curing is induced by heat or suitable radiation and may be promoted by high pressure, or mixing with a catalyst. (A) -(CH2 - --CI big| C = C H - C H2)n- (B) Image B (C) Image C (D) Im Learn vocabulary, terms, and more with flashcards, games, and other study tools. Prior to curing, the reinforcement substrate is dipped into the resin binder in its liquified form. • True. 8. Benefits of Thermoset Resins A. polyethylene B. a linear polymer C. a branched polymer D. a cross-linked polymer A cross-linked polymer is an example of a thermosetting polymer. MEDIUM. 7. Substance having ester linkage is. Bakelite is another name of Phenal formaldehyde. Which of the following polymer types is more amenable to recycling? A) Starch. Thermosetting plastic can withstand very high temperatures. Why does an ordinary electric fan give comfort in summer even though it cannot cool the air? answer choices . It is a thermosetting  polymer because it has cross linked structure. Which one of the following is an example of thermosetting polymer . 7. Glyptal polymer is obtained from glycol by reacting with (a) malonic acid (b) phthalic acid (c) maleic acid (d) terephthalic acid. Chemistry. A polymer plastic which cures irreversibly is called a thermosetting plastic. SURVEY . The terms thermoplastic and thermoset stand for how a material is or can be processed under a changed temperature [1]. MEDIUM. Answer: (a) 3. Which of the following plastics do not have cross-links between their polymer chains asked Jun 20 in Chemistry by BhratJha ( 44.3k points) synthetic fibers and plastics NEET Organic Chemistry Polymers questions & solutions with PDF and difficulty level Before the thermosetting plastic cures it is malleable A. H2O B. NH3 C. This question has multiple correct options. Among the following, the weakest inter-particle forces of attraction are present in 1) Thermosetting polymers 2) Thermoplastic polymers 3) Fibres 4) Elastomers 33. Iso-butene. C) Cellulose . Which of the folloiwng are characteristics of thermosetting polymers? Melamine is a thermosetting plastic which is resistant to fire and can tolerate heat better than other plastics. Check Answer and Sol Tech Companion - A Complete pack to prepare for Engineering admissions, MBBS Companion - For NEET preparation and admission process, QnA - Get answers from students and experts, List of Pharmacy Colleges in India accepting GPAT, Why does a tightly closed metal lid of a glass bottle can be opened more easily if it is put in hot water for some time? s. Log in for more information. nylons. 3. Join now. Bakelite is an example of thermosetting polymer. A) Polyethylene. Answer. Thermoplastics are 1) Linear polymers 2) Soften or melt on heating 3) Molten polymer can be moulded in desired shape Define themoplastic and thermosetting polymers. 9. The cross-linking process eliminates the risk of the product remelting when heat is applied, making thermosets ideal for high-heat applications such as electronics and appliances. answer choices . 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. View Answer. Physics. Thermosetting polymer,bakelite is formed by the reaction of phenol with (a) CH 3 CH 2 CHO (b) CH 3 CHO (c) HCHO (d) HCOOH. AMU 2018: Which of the following is an example of thermosetting polymers? (A) -(CH2 - --CI big| C = C H - C H2)n- (B) Image B (C) Image C (D) Im Because of heating, owing to a chemical reaction, or mixing with a catalyst is induced by or... 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