1.3a Thermoplastics

Question 1

Give 5 properties of acrylic

Answer 1

Stiff
Hard
Durable
Easily scratched
Good electrical insulator

Question 2

Give 3 disadvantages of acrylic

Answer 2

Brittle
Can break
Scratches easily

Question 3

What are the applications of acrylic?

Answer 3

Lighting
CD cases
Baths

Question 4

Name the 3 different types of polyethylene

Answer 4

• HDPE (high-density PE)
• LDPE (low-density PE)
• PET (PE tetrephthalate)

Question 5

Give 4 properties of HDPE

Answer 5

Good electrical insulator
Chemical resistant
Impact resistant
Flexible

Question 6

Give 2 disadvantages of HDPE

Answer 6

Colour fades over time
Can break under stress

Question 7

What are the applications of HDPE?

Answer 7

Water tanks
Buckets

Question 8

Give 3 properties of LDPE

Answer 8

Good electrical insulator
Chemical resistant
Flexible

Question 9

Give 2 disadvantages of LDPE

Answer 9

Colour fades over time
Can break under stress

Question 10

What are the applications of LDPE?

Answer 10

Cable insulation
Dustbin bags

Question 11

Give 3 properties of PET (Polyethylene Terephthalate)

Answer 11

Chemical resistant
High impact resistance
High tensile strength

Question 12

Give 2 disadvantages of PET (Polyethylene Terephthalate)

Answer 12

• Can discolour
• Needs to be treated to prevent taste problems when used in food containers

Question 13

What is an application of PET (Polyethylene Terephthalate)?

Answer 13

Fizzy drink bottles

Question 14

Give 6 properties of PVC (Polyvinyl Chloride)

Answer 14

Good chemical resistance
Weather resistant
Stiff
Tough
Hard
Lightweight

Question 15

Give a disadvantage of PVC (Polyvinyl Chloride)

Answer 15

UV light causes brittleness

Question 16

What are the applications of PVC (Polyvinyl Chloride)?

Answer 16

• Electrical wiring insulation
• Pipes for guttering

Question 17

Give 4 properties of PP (Polypropylene)

Answer 17

Lightweight
Hard
Impact resistant
Chemical resistant

Question 18

Give 2 disadvantages of PP (Polypropylene)

Answer 18

• UV causes degradation
• Oxidation can be a problem during manufacturing

Question 19

What are the applications of PP (Polypropylene)?

Answer 19

Medical syringes
Carpets
Kitchenware

Question 20

Give 6 properties of uPVC (Rigid Polyvinyl Chloride)

Answer 20

• Rigid
• Opaque
• Tough
• Hard
• Weather resistant
• Chemical resistant

Question 21

Give 3 disadvantages of uPVC (Rigid Polyvinyl Chloride)

Answer 21

• Non-biodegradable
• Can discolour over time
• Can become more brittle over time

Question 22

What are 5 applications of uPVC (Rigid Polyvinyl Chloride)

Answer 22

• Window frames
• Doors
• Guttering
• Water service pipes
• Bank cards

Question 23

Give 3 properties of ABS (Acrylonitrile Butadiene Styrene)

Answer 23

Chemical resistant
Hard
Tough

Question 24

Give a disadvantage of ABS (Acrylonitrile Butadiene Styrene)

Answer 24

UV causes degradation

Question 25

What are 4 applications of ABS (Acrylonitrile Butadiene Styrene)?

Answer 25

Mobile phones Safety helmets Remote control casings Luggage