The word ‘PLASTIC’ is derived from the Greek words ‘PLASSIEN’ and ‘PLASTIKOS’ meaning to mould or shape a soft substance permanent or temporary. It is a commercial class of substances.
Plastics are of two types:
(a) THERMOSET plastics undergo an irreversible chemical reaction with the combination of resins like phenol etc.
(b) THERMOPLASTS are processed by melting and softening and can be molded into different shapes.This process is reversible and these plastics can be melted and reshaped,such properties make plastics ‘RECYCLABLE’.
Read more at
2 Comments