PC is a kind of colorless or primrose material, with high tensile strength, bending intensity, elasticity and impact resistance. These physical properties, almost equal to metallic materials, will not change dramatically with different temperature and the intensity can be retained under 140 celsius degree.
It’s brittle temperature is as low as -100—140 celsius degree and the impact resistance is pretty high, amounting to the top among plastics. It can be made into rubber helmets and safety helmets.it is also provided with strong resistance against ultraviolet radiation, a weather resistance test wherein the substance is exposed outdoors for ten years proves that it’s mechanical property remain totally unchanged. In addition, it is sound in electric property. The chemical resistance is against acid rather than alkali. Only when temperature reaches 220—230 celsius degree will PC begin to be softened and refused. Due to it’s high viscosity, the substance, during molding and processing, requires high temperature and pressure higher than that of polystyrene or propylene resins.
PC can be manufactured into safety helmets, various mechanical parts and shells as well as components of electric mechanic appliances which require high electric insulation, intensity, heat resistance, transparency, vibration endurance and stable dimension.