Question

Answer in 30-40 words.
1. How did RAYON get its name?
2. Discuss characteristics of plastics in detail
3. Give four points of difference between synthetic and natural fibres.
4. What are the disadvantages of using synthetic fibres?
5. What can you do to reduce the problems associated with plastic disposal?​

Answer 1

1. The name “rayon” was coined in the 1924 as a generic term for regenerated cellulose fiber. The “Father of Rayon,” Frenchman Count Hillaire de Chardonnet, discovered in the 1880s that nitrocellulose from rags or wood pulp could be turned into fiber, thread, and fabric.

2. Plastics are generally low cost, easy to manufacture, durable, strong for their weight, electrically and thermally insulative, and resistant to shock, corrosion, chemicals, and water.

3. During spinning process spinneret is not necessary During spinning process spinneret is necessary for the production of filament

Chances of containing dust or impurities No chance of any dust or impurities

Less durable than synthetic More durable than natural

• 4. Most fabrics made from synthetic fibres require careful ironing as they melt easily.
• Most fabrics made from synthetic fibres absorb very little moisture. They become sticky when the body sweats, which makes them uncomfortable to wear in hot weather.
• Most fabrics made from synthetic fibres catch fire very easily.

5. There are many small ways you can have a big impact.

• Wean yourself off disposable plastics. ...
• Stop buying water. ...
• Boycott microbeads. ...
• Cook more. ...
• Purchase items secondhand. ...
• Recycle (duh). ...
• Support a bag tax or ban. ...
• Buy in bulk.

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