Question

There are some plastic which when moulded once ,can not be softened by heating .These are called

Answer 1

A plastic which once set,does not become soft on heating and cannot be moulded a second time, is called a thermosetting plastic. Once set in a given shape and solidified, a thermosetting plastic cannot be re-softened or re-moulded.

Answer 2

As we are becoming more more than an industrial day by day we are consuming more resources and materials for our daily usage.

Plastic is one of the resources and materials which we use vastly in our daily lifestyle.

Plastic is generally a non recyclable product but we in the present days scientists have developed a special kind of plastic which can be remoulded and reused after the first manufacturing.This plastics are known as the renewable plastic or bio-plastic.