Dongguan City, Wang Ying Plastic Materials Co., Ltd. Agency of Germany, Japan, South Korea, Switzerland, the United States, Taiwan and other well-known brands of engineering plastics. [The company provides free samples to try and let you zero risk to buy the company's products] PC board is a polymer molecular chain containing carbonate groups, according to the structure of the ester group can be divided into aliphatic, aromatic, aliphatic - aromatic and other types. Which because of aliphatic and aliphatic - low mechanical properties of the aromatic PC, thereby limiting its application in engineering plastics. Currently, only the aromatic PC is eligible for the industrial production. Due to the special nature of the PC architecture, has become the top five fastest growing engineering plastics in general engineering plastics. PC is a linear polyester carbonate, a carbonic acid group in the molecule and other groups are alternately arranged, these groups may be aromatic, can be aliphatic, can also be a combination of both. Bisphenol A type PC is the most important industrial products. PC is an amorphous glassy polymer is almost colorless, has good optical properties. PC molecular weight resin has a high toughness, notched Izod impact strength of 600 ~ 900J / m, unfilled grade heat distortion temperature of about 130 ° C, glass fiber reinforced this value can increase 10 ° C. Flexural modulus up to 2400MPa above PC resin processed into large rigid products. Below 100 ° C, under load creep rate is very low. PC has good hydrolysis resistance, but can not be subjected to high pressure steam for repeating article. The main drawback is that PC performance hydrolytic stability is not high enough to notch sensitivity, resistance to organic chemistry, chemical resistance, scratch resistance is poor, long-term exposure to ultraviolet light will be yellow. And other like resins, PC susceptible to leaching turbid certain organic solvents. PC application development is the high complex, high-performance, special, serialized direction of development, has launched a CD-ROM, cars, office equipment, box, packaging, medical, lighting, film and other products each grade special grades . ⑴ for the building materials industry: PC sheet has good light transmission, impact resistance, dimensional stability and resistance to ultraviolet radiation and its products and good processing performance, making the construction industry more than the traditional use of inorganic glass has obvious technical performance advantages. At present, China has built PC hollow sheet production line of building materials, more than 20, years required about PC7 million t, 2005 is expected to reach 140,000 t. ⑵ used in automobile manufacturing industry: PC has a good impact resistance, heat distortion performance, and good weather resistance, high hardness, and therefore suitable for the production of a variety of parts for cars and light trucks, which are mainly concentrated in the lighting system, the dashboard heating plate, defroster and PC alloy bumpers and the like. According to data developed, PC in electrical and electronics, automotive industry using the ratio of 40% to 50%, the proportion of China's current use in the field of only about 10% of electrical and electronic and automotive industry is the pillar industry of China's rapid development future demand for PC's in these areas would be great. 2005 China is expected to reach more than 300 total vehicle units, then the demand will reach 30 000 t, thus PC applications in this field is very promising to expand. ⑶ for the production of medical devices: As the PC product can be subjected to steam, cleaning agent, heating and high-dose radiation sterilization, without the occurrence of yellowing and physical degradation, which is widely used for artificial kidney dialysis equipment and other needs in a transparent, operating under visual conditions and the need to repeatedly sterilized medical devices. Such as the production of high-pressure syringe, surgical masks, disposable dental appliances, such as a blood separator. ⑷ used in aviation and aerospace fields: In recent years, with the rapid development of aviation, space technology, aircraft and spacecraft in the increasing demands of the components, making the PC applications in the field is also increasing. According to statistics, only an on Boeing aircraft components used on the PC up to 2500, a stand-alone PC consumes about two tons. The spacecraft is used in hundreds of different configurations by glass fiber reinforced PC components and protective equipment, such as an astronaut. ⑸ for packaging: In recent years, new growth appears in the packaging field is repeatable sterilization and the use of various types of storage bottle. PC products due to light weight, impact resistance and transparency, not deformed when dealing with hot water and caustic cleaning solution and the advantages of transparency, and some areas have been completely replaced glass bottles PC. It is predicted that, as people pay attention to the extent of drinking water quality continues to improve, PC usage in this area growth rate will remain at 10% in 2005 is expected to reach 60,000 t. ⑹ for electrical and electronic fields: As the PC in a wide temperature and humidity range with good and constant electrical insulation, is an excellent insulating material. At the same time, its good flame resistance and dimensional stability, so that in the electronic industry to form a broad range of applications. PC resin is mainly used for the production of all kinds of food processing machinery, power tool housings, body, frame, freezer drawers and vacuum cleaner parts. For higher precision parts and requires a computer, video recorders and color TV in terms of the important parts, PC materials also showed a high value. ⑺ for optical lens field: PC with its unique high transmittance, high refractive index, high impact resistance, dimensional stability and easy processing and other features in this area occupies an extremely important position. Making use of optical grade PC optical lens not only for cameras, microscopes, telescopes and optical test equipment, etc., but also for the film projector lens, lens copiers, infrared auto-focus projector lens, lens laser beam printers, and a variety of prisms , a lot of office equipment and household appliances such as a polygon mirror, its application market is extremely broad. PC Another important application areas in terms of the optical lens is a children's glasses, sunglasses and safety glasses and adult glasses lens material. In recent years, world consumption of PC optical industry has maintained an annual growth rate of more than 20%, showing great vitality of the market. ⑻ base material for the disc: In recent years, with the rise of the information industry, discs made from optical grade PC as a new generation of audiovisual information storage medium, is growing at breakneck speed rapid development. PC with its excellent performance characteristics and thus become the main raw material for manufacturing the world's disc. The world consumption of PC CD manufacturing industry has more than 20% PC overall consumption, its average annual growth rate of over 10%. Chinese CD yield rapid growth, according to the State Press and Publication Administration figures released in 2002 there were 748 CD production lines, the annual consumption of about 80,000 tons optical grade PC, and all imports. Thus PC applications in optical disc manufacturing field is very broad. Dongguan City, Wang Ying Plastic Materials Co., Ltd. Agency of Germany, Japan, South Korea, Switzerland, the United States, Taiwan and other well-known brands of engineering plastics. [The company provides free samples to try and let you zero risk to buy the company's products]