Product Design: Materials - Plastics

Thermoplastics
- can be molded once softened by heat.
- can be reheated and reshaped.
- will try to return to original position when reheated.
Polystyrene
- thermoplastic
- Lightweight/ hard/ rigid
- can be clear
- good water resistance
- used to make utensils/ models/ kits/ packaging
- HIPs used to vac form in school
Polypropylene
- thermoplastic
- lightweight & flexible
- resists cracking and tearing
- used for climbing rope
Thermosetting Plastics
- can be molded once softened by heat
- can't be reheated or remolded
- can withstand higher temperatures
Urea formaldehyde
- thermosetting plastic
- rigid/ hard and strong
- excellent insulator
- used for electrical plugs and sockets
Polyester Resin
- thermosetting plastic
- very hard and rigid
- extremelt tough when mixed with glass
- used for boat hulls and car bodies
Fixings
- Rivets: A hole is driven in both materials
- rivet is placed through holes
- rivet is put under compression until head is formed

Author

FatimaZehra

254567

Card Set

Product Design: Materials - Plastics

Description

GCSE Product Design Materials Plastics

Updated

12/30/2013, 6:25:46 PM

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