Question

Differentiate between thermoplastics and thermosetting plastics.

Answer 1

Thermoplastics	Thermosetting Plastics
They become soft on heating.	They become soft only the first time; they become hard on reheating.
They can be moulded into different shapes again and again.	They cannot be moulded more than once as they take a firm shape once they are heated and cooled.
Some examples are polythene, polyvinyl chloride (PVC), polystyrene, teflon, etc.	Some examples are bakelite, melamine, formica, etc.