Which of the following statement is the correct definition of thermosetting plastics?
(A) They soften on heating and can he melted and moulded in to any desired shape.
(B) They can be heated only once and, when set into a solid (a shape or a pattern), it becomes
permanent, as these cannot be remelted or recast.
(C) Thermosetting polymers are those which can be only formed by condensation polymerisation.
(D) These plastics can be obtained only by addition polymerization
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Answer:
they are no.
Step-by-step explanation:
B
D
I THINK THAT THESE ARE ONLY CORRECT BUT NOT CONFIRM.
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