Elastomers Examples

Question 1

Elastomers examples

Answer 1

Natural rubber (polyisoprene)

Butadiene rubber (BR)

Neoprene (polychloroprene rubber)

Silicone

Question 2

Natural rubber (polyisoprene): Properties/characteristics

Answer 2

High tensile strength, low elongation, good hardness compared to other elastomers, tough, electrical insulator, good cold resistance.

Question 3

Butadiene rubber (BR): Properties/characteristics

Answer 3

Tough, excellent wear resistance against friction, good thermal resistance against friction, electrical insulator.

Question 4

Neoprene (polychloroprene rubber): Properties/characteristics

Answer 4

Good thermal resistance, toughness, good oil and chemical resistance, excellent weather resistance, good abrasion resistance and electrical insulator.

Question 5

Silicone: Properties/characteristics

Answer 5

Good flexibility at low temperatures, poor abrasion resistance, good thermal resistance and resistance to temperature extremes, good weather resistance, good lubricating qualities, electrical insulator.

Question 6

Natural rubber (polyisoprene) uses

Answer 6

Automotive industry such as tyres, tubes, hoses, gaskets, belts, balloons, toys, footwear

Question 7

Butadiene rubber (BR) uses

Answer 7

Vehicle tyres, shoe soles, toys, conveyor belts, water and pneumatic hoses

Question 8

Neoprene (polychloroprene rubber) uses

Answer 8

Wetsuits, laptop cases, industrial wire insulation, automotive applications such as shock absorber seals, hose covers, transmission belts, gaskets and door seals

Question 9

Silicone uses

Answer 9

Flexible ice cube trays, bakeware, cooking utensils, seals for refrigerators, machinery lubricant, sealants, mould making, medical uses such as lubricants for prosthetics, tubing for drug delivery systems