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Synthetic Fibres and Plastics
Explain why the following are made of thermosetting plastics.
(a) Saucepan handles
(b) Electric plugs/switches/plug boards
Thermosetting plastics are the type of plastics that become rigid after heating and cannot be remolded again. Bakelite and Melamine are examples of thermosetting plastics.
(a) Thermosetting plastics are a bad conductor of heat and do not get heated up while cooking. That is why they are used to make saucepan handles.
(b) Thermosetting plastics are a bad conductor of electricity. That is why they are commonly used to make electric plugs, switches, or plug boards.
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