Polymers Flashcards
What is a thermoforming polymer
A material that can be reshaped by application of heat
This product can be recycled
What is a thermosetting polymer
A material that cannot be reshaped by reheating
It cannot be recycled
Description / use / pros / cons
Acryllic
Thermoforming polymer
Tough, easily cleaned, food safe, easily scratched
Uses:
Shop signs, rear car lights
A:
Widley available
Easy to cut / finish
Can be shaped using heat
D:
Brittle - breaks easily if dropped
Description / use / pros / cons
High impact polystyrene (HIPS)
Thermoforming polymer
Lightweight, high stiffness, impact resistant
Use:
Toys, tv parts
A:
Low melting point (easy to mould)
D:
Brittle when ecposed to uv
Description / use / pros / cons
Biopool™
Thermoforming polymer
Lightweight, electrical insulator, degrades over time in landfill sites
Use:
Disposable cups, packaging
A:
Biodegradable
Can be vacuum formed
D:
Expensive
Low impact resistance
Description / use / pros / cons
Polyester resin
Thermosetting polymer
Rigid + brittle, good electrical + heat insulator
Use:
Boat hulls, car bodies
A:
Can be used with glass fibers to make lightweight + strong products
Easily polished.
D:
Can chip if dropped
Description / use / pros / cons
Urea formaldehyde
Thermosetting polymer
Rigid, hard brittle, heat resistant + electrical insulator
Use
Electric fittings (plugs, sockets,switches)
A:
Can be coloured using pigments
D: can break if dropped
