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VARIOUS TYPES OF THERMOPLASTICS USED IN DAY TO DAY LIFE

Thermoplastics are linear polymers, the molecules of which are synthesized in the shape of  long threads. They undergo no chemical change in the molding operation and is often with the application of heat and harden upon cooling. They can be reshaped while in the softened state and they will reharden ; thus the scrap can be used again. They may become too soft to use at temperatures from 66 to 315*c. Since they become increasingly softer with increase temperature, certain numbers of  the thermoplastic family are liable to permanent distortion under mechanical strain at relatively low temperature. The may flow to an appreciable extent under load at room temperature. They may flow to an appreciable extent under load at room temperature. Most of the plastics in use today are Thermoplastics.

1. Cellulosic 

2. Nylons.

3. Polyethylene resins.

4. Polystyrene & Polypropylene.

5. Polycarbonate. 

6. Acrylic resin.

7. Acetal ( Poly acetal ).

8. Vinyl plastics.


various types of thermoplastics





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