/ Explain the difference between thermoplastic and thermosetting plastics. 7. Explain why the following are made of thermosetting plastics.
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Thermoplastic can be bent easily. Thermosetting plastic cannot be softened by heating. Thus, it cannot be reshaped once moulded. Thermoplastic can be softened easily by heating.
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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.
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