Q. 11

Which of the following polymers are thermoplastic?

A. Teflon

B. Natural rubber

C. Neoprene

D. Polystyrene

Answer :

Now Thermoplastics are polymer plastics which turn soft on heating and become hard on cooling. Natural rubber on undergoing vulcanization is said to be a thermosetting polymer. Vulcanization is basically a chemical process where the physical properties of rubber are improved. Neoprene is a thermoset or thermosetting material not a thermoplastic material. Being in the category of thermoplastic, Teflon is used for non- stick cookware and Polystyrene finds its use in CD cases and domestic appliances.

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