Give the characteristics properties and important uses of the followings:a .polythene b. polystyrene c.teflon d.bakelite
Answers
Answer:
Characteristics of polythene are as follows:
1.have low strength
2.Its density: 0.88–0.96 g/cm cube
3.Polythene is of two types:high density and low density
Characteristics of polystyrene are as follows:
1.Polystyrene contains the toxic substances Styrene and Benzene.
2.High Impact Polystyrene (HIPS) is a versatile, economical and impact-resistant.
characteristics of Teflon are as follows:
1.It maintains high strength, toughness and self-lubrication at low temperatures.
2.Its melting point is 600 K, 327 °C.
3.Its density is 2200 kg/meter cube
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Answer:
Explanation:
(a) Polythene's characteristics and applications are as follows:
Properties:
1) It resists moisture.
2) It can be formed into a variety of shapes and is both strong and flexible.
Uses:
Milk and other liquids are packaged on polythene sheets. Liquids like water and oil are transported through polythene pipes. Liquids are kept in containers made of polythene.
(b) Polystyrene has the following characteristics and applications:
Properties:
1) It is easily moldable.
2) It is not very resistant to chemicals.
Uses:
It is employed in the packing of fragile goods like electronic equipment. Thermocol is made with it. The refrigerator's hollow walls are likewise insulated with it.
(c) Teflon's characteristics and applications are as follows:
Properties:
1) It has slick qualities and is heat-resistant.
2) It has no chemical reactions with other compounds.
Uses:
It is used to coat pans and other cooking equipment with a non-stick surface. It's used to create things like gaskets, pump packings, valves, and seal.
(d) Bakelite has the following characteristics and applications:
Properties:
1) It has good electrical insulating properties.
2) Compared to other polymers, it is tougher.
Uses:
Combs, fountain pens, buttons, plugs, and switches are some examples of the items that can be made from it.
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