Science, asked by Anonymous, 3 months ago


1 . What are thermoplastics? Give two examples of thermoplastics

2 .What is polythene?

3 . Why are thermoplastics not used for making frying pan handles?

4 .Why are electric switches, plugs made of thermosetting plastics?

5. Explain, why plastic containers are preferred for storing food.

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Answers

Answered by NehaRaj6499
1

Answer:

1. Some of the most common types of thermoplastic are polypropylene, polyethylene, polyvinylchloride, polystyrene, polyethylenetheraphthalate and polycarbonate.

...

Acrylonitrile butadiene styrene (ABS) is a thermoplastic used to manufacture:

Sports equipment.

Toys (for example LEGO® blocks).

Various automobile parts.

2. a tough, light flexible synthetic resin made by polymerizing ethylene, chiefly used for plastic bags, food containers, and other packaging.

"strips of black polythene"

3. Thermoplastics are not suitable for making handles of frying pans because they are flexible and soften on heating.

Answered by Anonymous
3

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  1. A thermoplastic is any plastic material which melts into a soft, pliable form above a certain temperature and solidifies upon cooling. ... Common examples of thermoplastics include acrylic, polyester, polypropylene, polystyrene, nylon and Teflon.
  2. Polyethylene or polythene is the most common plastic in use today. It is a linear, man-made, addition, homo-polymer, primarily used for packaging. As of 2017, over 100 million tonnes of polyethylene resins are being produced annually, accounting for 34% of the total plastics market.
  3. Thermoplastics are not suitable for making handles of frying pans because they are flexible and soften on heating
  4. Thermosetting plastics are used in saucepan handles because they do not soften on heating and also they cannot be bent easily. These plastics like bakelite are poor conductors of heat
  5. Plastic containers seem more convenient than metal containers. This is because of their light weight, lower price, good strength and easy handling.

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