Common Thermopolymers Flashcards
(12 cards)
1
Q
What are the properties of polyamide (nylon)?
A
- Creamy colour
- Tough
- Fairly hard
- Resistant to wear
- Self-lubricating (creates a film that provides lubrication and reduces friction)
- Good resistance to chemicals and high temperatures
2
Q
What are the uses of polyamide (nylon)?
A
- Bearings
- Hinges for small cupboards
- Clothing
- Gear wheels
- Casings for power tools
- Curtain rail fittings
- Rope
- Combs
3
Q
What are the properties of polymethyl methacrylate (acrylic)?
A
- Stiff
- Hard but scratches easily
- Brittle in small sections
- Good electrical insulator
- Machines and polishes well
- Clear
- Durable outdoors
- Range of colours
- Impact resistance (glass substitute)
4
Q
What are the uses of polymethyl methacrylate (acrylic)?
A
- Signs
- Covers of storage boxes
- Aircraft canopies and windows
- Covers for car lights
- Wash basins and baths
- Seats
5
Q
What are the properties of polypropylene?
A
- Lightweight
- Hard but scratches easily
- Tough
- Good resistance to chemicals
- Resists weakening as a result of prolonged/repeated stress (work fatigue)
6
Q
What are the uses of polypropylene?
A
- Medical equipment
- Laboratory equipment
- Containers with built-in hinges
- ‘Plastic’ seats
- String
- Rope
- Kitchen equipment
7
Q
What are the properties of polystyrene?
A
- Light
- Hard
- Stiff
- Transparent
- Brittle
- Good water resistance
- Range of colours
8
Q
What are the uses of polystyrene?
A
- Toys
- Especially model kits
- Packaging
- ‘Plastic’ boxes and containers
9
Q
What are the properties of low density polythene (LDPE)?
A
- Tough
- Good resistance to chemicals
- Flexible
- Fairly soft
- Good electrical insulator
- Range of colours
10
Q
What are the uses of low density polythene (LDPE)?
A
- Packaging
- Especially bottles
- Toys
- Packaging film and bags
11
Q
What are the properties of high density polythene (HDPE)?
A
- Hard
- Stiff
- Able to be sterilised
- Range of colours
12
Q
What are the uses of high density polythene (HDPE)?
A
- Plastic bottles
- Tubing
- Household equipment
