Plastics

Plastics

1. The plastic industry synthesises polymers.In 1860 celluloid was patened, and in 1907 one of the first sinthetic polymers

2. Monomers:ethylene,propene,chloroethene or vinyl chloride

3. Polymers:polyethylene,polypropylene,polyvinyl chloride

4. Types of plastic:thermoplastics,thermosetting polymers and elastomers

5. Plastic shaping techniques:extrusion,calendaring,injection,blow mouding,compression,vacuum forming and spin or rotational moulding