Question

4. The plastics that do not soften much on heating fill ups​

Answer 1

Answer:

Thermosetting plastics

Explanation:

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Answer 2

Answer:

Thermosetting plastic

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

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