define thermosetting plastic
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Explanation:
thermosetting plastic is a polymer that is irreversibly hardened by heat. Thermosetting plastics are also known as thermosets, thermosetting polymers, or thermosetting resins. The starting material for a thermoset is a liquid or soft solid. Heat provides energy for covalent bond formation, cross-linking the polymer subunits and curing/hardening the plastic. Sometimes the heat is applied externally, but it may come from the chemical reaction of mixing ingredients. Adding pressure, a catalyst, or a hardener can increase the curing rate. Once cured, a thermosetting plastic cannot be re-melted, so it is formed into its final shape by injection molding, extrusion molding, compression molding, or spin casting.
Answer:
Thermoset Curing Process (Thermosetting Plastic)
Thermoset plastics are frequently used for sealed products due to their resistance to deformation and are also among some of the most impact resistant plastics available. Examples of thermoset plastic polymers include epoxies, phenolics, silicones,
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