Of the polymers listed in Table 15.2, which polymer(s) would be best suited for use as ice cube trays? Why?
Table 15.2 Melting and Glass Transition Temperatures for Some of the More Common Polymeric Materials
Material | Glass Transition Temperature [°C (°F)] | Melting Temperature [°C (°F)] |
Polyethylene (low density) | -110 (-165) | 115 (240) |
Polytetrafluoroethylene | -97 (-140) | 327 (620) |
Polyethylene (high density) | -90 (-130) | 137 (279) |
Polypropylene | -18 (0) | 175 (347) |
Nylon 6,6 | 57 (135) | 265 (510) |
Poly(ethylene terephthalate) (PET) | 69 (155) | 265 (510) |
Poly(vinyl chloride) | 87 (190) | 212 (415) |
Polystyrene | 100 (212) | 240 (465) |
Polycarbonate | 150 (300) | 265 (510) |
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