PC is an amorphous polymer in almost colorless glassy state with good optical properties.PC has high toughness, high molecular weight resin cantilever beam notched impact strength of 600 ~ 900 j/m, not fill the brand of the thermal deformation temperature is about 130 ° C, glass fiber reinforced can make this value after 10 ° C increase.PC bending modulus up to 2400MPa, resin can be processed into large rigid products.Below 100 ° C, under the load of the creep rate is very low.PC has poor hydrolysis resistance and cannot be used to repeat products subjected to high pressure steam.
The main performance defect of PC is that its hydrolysis resistance is not high enough, it is sensitive to the notch, it is resistant to organic chemistry, and it has poor scratch resistance. It will turn yellow when exposed to ultraviolet light for a long time.Like other resins, PCS are vulnerable to some organic solvents.
PC materials are flame retardant and wear - resistant.Oxidation resistance.
Applied development industry
The three major application areas of PC engineering plastics are glass assembly industry, automobile industry and electronics and electric appliance industry, followed by industrial machinery parts, optical disk, packaging, computer and other office equipment, * therapy and health care, thin film, leisure and protection equipment, etc.The PC can be used as window glass, and the PC laminate is widely used for protective Windows in Banks, embassies, detention centers and public places, as well as for aircraft cabin covers, lighting equipment, industrial safety baffles and bullet-proof glass.
Building materials industry
Polycarbonate sheet has good light transmittance, impact resistance, uv radiation resistance and dimensional stability of its products and good molding performance.China has more than 20 polycarbonate hollow plate production lines, which require about 70,000 tons of polycarbonate annually, up to 140,000 tons by 2005.
Automobile industry
With good shock resistance, thermal distortion resistance, weather resistance and hardness, polycarbonate is suitable for the production of various parts of cars and light trucks, mainly focusing on lighting systems, dashboards, heating plates, defroster and polycarbonate metal bumpers.
According to the data of developed countries, the use of polycarbonate in the electronics, electric and automobile manufacturing industry is 40% ~ 50%, while the use of polycarbonate in China is only about 10%. The electronics, electric and automobile manufacturing industry is the pillar industry of China's rapid development, and the demand for polycarbonate in these fields will be huge in the future.There is a lot of cars in China, so the application of polycarbonate in this field has great potential.
