Question

thermoset plastics are rigid .why?​

Answer 1

Answer:

thermosetting plastic is a polymer that irreversibly becomes rigid when heated. ... Heat provides energy for chemical reactions that increase the cross-linking between polymer chains, curing the plastic. The rate of curing may be increasing in many cases by increasing pressure or by adding a catalyst.

Answer 2

Answer:

A thermosetting plastic is a polymer that irreversibly becomes rigid when heated. ... Heat provides energy for chemical reactions that increase the cross-linking between polymer chains, curing the plastic. The rate of curing may be increasing in many cases by increasing pressure or by adding a catalyst........

Common examples of thermoset plastics and polymers include epoxy, silicone, polyurethane and phenolic. In addition, some materials such as polyester can occur in both thermoplastic and thermoset versions. ... Different thermosets provide different advantages when used as a production material........

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