Chapter 1: Synthetic Fibres and Plastics

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Synthetic Fibres and Plastics

Question:

Explain the difference between thermoplastic and thermosetting plastics.

Answer:

The plastic which can be deformed easily on heating and can be bent easily is called a thermoplastics. For example, polyvinyl chloride, polyethylene, bottles pipes, etc. Polyvinyl chloride (PVC) is used for making food packaging etc. It is durable, inexpensive, and resistant to heat and electricity.

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. Bakelite is plastic that is commonly used to make electric switches, frying pans, etc. Melamine is the type of plastic commonly used to make floor tiles and tough kitchenwares. 


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