Question

B) Classify into thermosetting plastic and thermoplastics on the basis of their
characteristics.
(1) The plastics that are poor conductors of heat and electricity.
(2) Plastics which when moulded once, cannot be softened by heating
(3) The plastic which gets deformed easily on heating and can be bent easily.​

Answer 1

Explanation:

There are two types of plastics: Thermosetting plastics and Thermoplastics. The difference between thermoplastic and thermosetting plastics are:

Thermoplastics thermosetting plastics

Plastics that can be easily deformed and bend easily on heating are known as thermoplastics. Plastics once moulded cannot be bent or deformed are known as thermosetting plastics.

They are used for making toys, containers. They are used for making switches, handles of utensils, etc.

Examples are PVC, Polythene Examples are Bakelite, Melamine