Question

1. Name the component fibres for each of the following: polycot, polywool and cotswool.

2. What are plastics?

3. Give the differences between thermoplastics and thermosetting plastics.​

Answer 1

Answer:

1) polycot =is a mixture polymer and cotton

polywool = is a mixture of polymer and wool

colswool = is a mixture of cotton and wool

2) plastic is a synthetic or semi synthetic material that is used in a huge growing range of application

3) Thermoplastic plastic 1) Such polymers or plastics are usually formed by addition polymerisation.2) They are linear or slightly branched long chain ..3) They are held together by Van der Waal forces of attraction.

Thermosetting plastics.1) These plastics are usually formed by condensation polymerisation.2) They are cross linked or heavily branched 3) It cannot be softened on heating.