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प्रश्न
Write short note.
Uses of plastic.
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उत्तर
- Melamine is used in domestically useful items like cup, saucers, plates, trey, spare parts of airplane engine and sound insulating coverings etc.
- Polyurethane is used in surfing boards, small boats, furniture, seats in vehicles etc.
- Bakelite is used for making cabinets of radio, T.V., telephones, electric switches, toys, coverings over handles of cookers etc.
- Polyester is used for making fiberglass, toners of laser printers, textile industry etc.
- Polypropylene is used for making parts of loudspeakers & vehicles, ropes, mattresses, laboratory appliances etc.
- Polyethene is used for making milk bags, packing bags, flexible garden pipes etc.
- Polystyrene is used for making thermo-insulating parts of electric appliances like refrigerators, gears of the machine, toys, protective coverings like covers of CD and DVD etc.
- Polyvinyl chloride is used for making bottles, raincoat, pipes, handbags, shoes, electric cable insulation, furniture, ropes, toys etc.
संबंधित प्रश्न
Should the handle and bristles of a tooth brush be made of the same material? Explain your answer.
Which measures will you arrange to minimize the environmental problems arising due to non-degradable plastic?
Can you replace the following packaging material with those which can be recycled or reused.
Dry eatables in polythene.
Why is it better to avoid the use of plastic products?
A syringe that is made from a type of plastic called ______.
What are the drawbacks of plastics?
A survey showed that one-time-use plastic items were among the top 10 plastic items found in garbage washed up from oceans. Can this be true? Explain how.
Pet name for Buckminster Fullerene is ______.
Polycarbonate (PC) plastic contains ______.
The used plate is easy to recycle.
