Question

find out the composition and uses of commonly used plastics like Thermocol,PVC and PVT.

Answer 1

PVC or polyvinyl chloride is  linear polymer of  vinyl chloride. 
PET or polyethylene terephthalate is a polymer composed of ethylene glycol and terephthalic acid. 
Thermocol is polystyrene and is a polymer of styrene.

Answer 2

Answer:

Thermocol composition: Thermocol is mainly made out of polystyrene. Usage of thermocol: A)Used for arts and crafts. B) Used for packaging.

PVC composition: PVC is made out of vinyl chloride. PVC usage: A)Used for making electrical wires. B) Used for making raincoats.