1.3c Elastomers

Question 1

List 4 properties of natural rubber (polyisoprene)

Answer 1

• High tensile strength
• Tough
• Electrical insulator
• Good cold resistance

Question 2

List 2 disadvantages of natural rubber (polyisoprene)

Answer 2

• Potential UV damage over time
• Brittleness over time

Question 3

List three disadvantages of neoprene (polychloroprene rubber)

Answer 3

• High cost
• Lack of chemical resistance
• Does’t withstand extreme temperatures

Question 4

List four uses of neoprene (polychloroprene rubber)

Answer 4

• Wetsuits
• Industrial wire insulation
• Automotive shock absorbers
• Automotive gaskets and door seals

Question 5

List five uses of natural rubber (polyisoprene)

Answer 5

• Tyres
• Hoses
• Balloons
• Toys
• Footwear

Question 6

List 4 properties of neoprene (polychloroprene rubber)

Answer 6

• Good thermal resistance
• Toughness
• Good oil and chemical resistance
• Abrasion resistance