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The physical properties of the commonly used material PC.
Physical properties of PC materials:
Density: 1.18 to 1.22 g/cm ^ 3 expansion ratio: 3.8 * 10 ^ 5 cm / ° C: thermal deformation temperature of 135 ° C temperature - 45 ° C
Polycarbonate is colorless, transparent, heat-resistant, resistant to impact, flame retardant BI, and has good mechanical properties in normal use temperature.Compared with the performance of polymethyl methacrylate, polycarbonate has good impact resistance, high refractive index and good processing performance. It does not require additives to have UL94 v-0 flame retardant performance.However, polymethyl methacrylate is relatively low in price and can be used to produce large devices through bulk polymerization.
Polycarbonate has a poor wear resistance.Some polycarbonate devices for wear and tear require special treatment on the surface.
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