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Polycarbonate (PC)
- Linear Chain, well below Tg at
room temperature, amorphous
- Condensation Polymerization
- Tough, Stiff, Strong and
Transparent
- Feeding Bottle, Safety Helmet,
Cups and Saucers
Acrylonitrile Butadiene
Styrene (ABS)
- Brittle Styrene Acrylonitrile SAN
polymer toughened with
polybutadiene, range –40-120oC
- Properties depend on the ratio of
Acrylonitrile, Butadiene and
Styrene, A-Chemical resistance,
heat stability, B-Toughness, Srigidity
and processability
- amorphous – tough, stiff, abrasion
resistant
- Injection Molded, extruded,
thermoformed
Polymethyl Methacrylate
(PMMA)
- Acrylic, Transparent
Thermoplastic, linear chains
with bulky side groups
- Stiff strong material with
outstanding weather resistance
- Light fittings, Canopies, Lenses
for Car lights, opaque varieties
for domestic bath, shower
cabinet, basin, cisterns
Relative Comparison of
Thermoplastics
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