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Weekly topic: 5 Wealth points for those who answer correctly, 2 Wealth points for participation； Question 138

2015-08-12View Original

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Multiple choice: Among the various polymers listed below, which one is thermosetting? ( ) A. Plexiglass B. Polyvinyl chloride C. Polypropylene D. Phenolic plastic. Answer: D. Hint: Linear polymers are thermoplastic, while three-dimensional polymers are thermosetting. Phenolic plastics belong to the network structure type and are thermosetting.
Reply #22015-08-12
D, phenolic resin-------------
Reply #32015-08-12
C. Polypropylene. . . . . .
Reply #42015-08-12
Among the various polymers listed below, the one that is thermosetting is (D). A. Plexiglass B. Polyvinyl chloride C. Polypropylene D. Phenolic plastic
Reply #52015-08-12
Among the various polymers listed below, the one that is thermosetting is (D). A. Plexiglass B. Polyvinyl chloride C. Polypropylene D. Phenolic plastic
Reply #62015-08-12
D. Phenolic plastics. :hug::hug::hug:
Reply #72015-08-12
D doesn’t understand; it can be found on Baidu. Participate actively and learn*
Reply #82015-08-12
Among the various polymers listed below, the one that is thermosetting is (d) A. Plexiglass B. Polyvinyl chloride C. Polypropylene D. Phenolic plastic
Reply #92015-08-12
The answer should be D. Phenolic plastic

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Translated at 2026-07-21 01:52:35

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