Question

Which of the following is not a thermoplastic polymer?
A. polyester
B. melamine
C. nylon
D. polyvinyl chloride

Answer 1

Answer:

melamine is the answer

Answer 2

B. melamine

Explanation:

Melamine is a thermosetting plastic, not a thermoplastic. Thermosetting Plastics are prepared from low molecular mass semi-fluid substances. Thermosetting plastic can withstand very high temperatures. During its curing process, the polymers link together to form a permanent chemical bond. They are poor conductors of heat and electricity and hence used in electric switches, sockets, plus, frying pan handles, etc.

Option B is the answer.