what are thermoplastics and thermosetting plastics
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Answer:
Thermoplastics have secondary bonds between molecular chains. Thermosetting plastics have primary bonds between molecular chains and held together by strong cross-links. Thermoplastics have low melting points and low tensile strength. Thermosetting plastics have high melting points and tensile strength.
Explanation:
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Answer:
A thermoplastic is a type of plastic made up of polymer resins that becomes a soft material when it is heated and becomes hard when it is cooled. These materials are easily recycled and do not show any chemical property changes when they are heated or cooled multiple times.
A 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.