3. Give the characteristic properties and important uses of the following: a. polythene b. polystyrene d. bakelite c. teflon
Answers
Answer:
polythene:-
The primary uses of polyethylene are in packaging film, garbage bags, grocery bags, insulation for wires and cables, agricultural mulch, bottles, toys, and houseware. Polythene is also used in trays, fruit juice containers, milk containers, crates, and food packaging products.
polystyrene:-
Packaging.
Household appliances.
Consumer electronics products.
Building and construction, for example insulation foam, panels, bath and shower units, lighting and plumbing fixtures.
bakelite:-
Bakelite due to its high resistance to electricity and heat is used in automotive components and industrial applications.
Due to its excellent insulating properties it is used for making switches and other electrical appliances.
It is also used to make various kitchenware products like frying pans etc.
teflon:-
It is used in making waterproof fabric.
It is used in making non-stick cookware.
It is used in making an anti-friction device.
It is used for coating medical appliances (surgical devices).
Due to its high resistance towards corrosion, it is used for coating the lining of the laboratory appliances.