Thermoplastics Flashcards
1
Q
ABS Positive 2 Negative Uses Moulded
A
\+Durable \+intricate designs -not flexible Lego, hard hats Injection
2
Q
PET Positive 3 Negative Use Moulded
A
Strong Clear Disposable -crinkly Bottles Blow moulded
3
Q
Acrylic Positive Negative Use Moulded
A
Clearer than glass
-scratches easily
Car lenses, signs
Injection
4
Q
Polypropylene Positive Negative Use Moulded
A
Tough, integral hinges
-expensive, not clear
School chairs, sandwich boxes
Injection
5
Q
HIPS Positive Negative Use Moulded
A
Inexpensive, clear
Low quality
Calculator cases, cheap toys
Injection/ vacuum
6
Q
Expanded polystyrene Positive Negative Use Moulded
A
Buoyant, 8x bigger with air
Breaks easily
Packaging
Injection
7
Q
LDPE Positive Negative Use Moulded
A
Stretchy, light, printable
Breaks easily
Carrier bags, toothpaste
Calendaring
8
Q
HDPE Positive Negative Use Moulded
A
Disposable, cheaper than polypropylene
Not strong
Buckets, bowls
Injection/blow
9
Q
Nylon Positive Negative Use Moulded
A
Self lubricating
Reasonably strong
Clothing, bearings
Woven/ injection
10
Q
UPVC Positive Negative Use Moulded
A
Hard, inexpensive
Window frames, gutters
Extrusion
11
Q
PVC Positive Negative Use Moulded
A
Clear
Hose pipes, pencil cases
Calendared/ extrusion
12
Q
Polystyrene Positive Negative Use Moulded
A
Disposable, inexpensive
Draft angle, weak
Yogurt pots
Vacuum
13
Q
Properties of all thermoplastics?
A
Remouldable
Recyclable
Self coloured
Self finishing
