Market Applications
The application of polycarbonate development is to high composite, high functionality, specialization, serialization direction, has launched a CD-ROMs, automobiles, office equipment, boxes, packaging, pharmaceuticals, lighting, film and other products of their respective special grade grades.
(1) for the building materials industry. Polycarbonate sheet with good light transmission, impact resistance, resistance to ultraviolet radiation and its products dimensional stability and good molding and processing performance, so that it has a clear technical performance advantage over the traditional use of inorganic glass in the construction industry. At present, China has built more than 20 polycarbonate building materials hollow plate production line, the annual need for polycarbonate about 70,000t, is expected to 2005 will reach 14 million t.
(2) used in automobile manufacturing industry. Polycarbonate has good impact resistance, heat distortion resistance, and good weather resistance, high hardness, so it is suitable for the production of cars and light trucks, a variety of parts and components, which are mainly concentrated in the lighting system, instrument panels, heating panels, defrosters and polycarbonate alloy made of bumpers and so on. According to the data of developed countries, polycarbonate vinegar in the electrical and electronic, automobile manufacturing industry in the use of the proportion of 40% to 50%, at present, China in the field of the use of the proportion of only 10% or so, the electrical and electronic and automobile manufacturing industry is China's rapid development of the pillar industries, the future of these areas of demand for polycarbonate vinegar will be huge. It is expected that in 2005 China's total number of cars will reach more than 300 million, when the demand will also reach 30,000t, and thus the application of polycarbonate in this field is extremely potential for expansion.
(3) for the production of medical equipment. As polycarbonate products can withstand steam, detergent, heating and large doses of radiation disinfection, and does not occur yellowing and physical properties decline, and therefore is widely used in artificial kidney hemodialysis equipment and other need to operate in transparent, intuitive conditions and need to be repeatedly disinfected medical equipment. Such as the production of high-pressure syringes, surgical masks, disposable dental appliances, blood separator.
(4) used in aviation and aerospace fields. In recent years, with the rapid development of aviation and aerospace technology, the requirements of aircraft and spacecraft components continue to improve, so that the application of PC in the field is also increasing. According to statistics, only a Boeing-type aircraft with polycarbonate parts up to 2,500, a single machine consumes about 2 tons of polycarbonate. And in the spacecraft is used in hundreds of different configurations and by the glass fiber reinforced polycarbonate parts and astronauts protective equipment.
(5) used in the field of packaging. In recent years, the new growth in the field of packaging is repeatable sterilization and use of various types of water bottles. Due to polycarbonate products with light weight, impact resistance and good transparency, with hot water and corrosive solution washing treatment does not deform and maintain the advantages of transparency, some areas of the current PC bottle has completely replaced the glass bottle. It is predicted that as people attach importance to the quality of drinking water continues to improve, polycarbonate in this regard, the rate of increase in the amount of growth will remain at more than 10%, is expected to 2005 will reach 60,000t.
(6) used in the field of electronic and electrical appliances. As polycarbonate in a wide range of temperature and humidity with good and constant electrical insulation, is an excellent insulating material. At the same time, its good flame-retardant and dimensional stability, so that it has formed a wide range of applications in the electronic and electrical industry. Polycarbonate resin is mainly used in the production of a variety of food processing machinery, power tool shells, bodies, brackets, refrigerator freezer drawers and vacuum cleaner parts. And for parts requiring high precision computers, video recorders and color televisions in the important parts, polycarbonate materials also show a high value.
(7) used in the field of optical lenses. Polycarbonate with its unique high transmittance, high refractive index, high impact resistance, dimensional stability and easy to process molding and other characteristics, in the field occupies an extremely important position. Optical grade polycarbonate with the production of optical lenses can not only be used for cameras, microscopes, telescopes and optical test instruments, etc., but also can be used for film projector lens, copier lens, infrared autofocus projector lens, laser beam printer lens, as well as a variety of prisms, multi-faceted mirrors, and other office equipment and home appliances, its application market is extremely broad. Polycarbonate in the optical lens is another important application area is as children's glasses, sunglasses and safety glasses and adult glasses lens material. In recent years, the average annual growth rate of polycarbonate consumption in the world eyeglass industry has been maintained at more than 20%, showing great market vitality.
(8) for the basic material of the optical disk. In recent years, with the stubborn rise of the information industry, optical discs made of optical-grade polycarbonate as a new generation of audio-visual information storage media, is a very fast and rapid development. Polycarbonate with its excellent performance characteristics and thus become the world's main raw materials for the optical disk manufacturing industry. At present, the amount of polycarbonate consumed by the world optical disk manufacturing industry has exceeded 20% of the overall consumption of polycarbonate, and its average annual growth rate of more than 10%. China's optical disc production is growing rapidly, according to the State Press and Publication General Administration of the figures released in 2002, the country **** 748 optical disc production lines, the annual consumption of optical-grade polycarbonate about 80,000 tons, and all imports. Thus, the application of polycarbonate in the field of optical disk manufacturing prospects are extremely broad.