what are the thermosetting plastics ? give examples
Answers
Answer:
A plastic which once set,does not become soft on heating and cannot be moulded a second time,is called thermosetting plastic. They are known as thermosets.
For Ex:Bakelite and melamine. They are hard and rigid.
Answer:
A thermosetting polymer, often called a thermoset, is a polymer that is obtained by irreversibly hardening ("curing") a soft solid or viscous liquid prepolymer (resin). Curing is induced by heat or suitable radiation and may be promoted by high pressure, or mixing with 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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