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Fiberglass Profiles Divided By State
- Aug 03, 2017 -

fiberglass profiles Divided by state

Glass fiber profiles are inorganic polymer fibers with a carbon content of more than 90%. Which contains more than 99% carbon content of the graphite fiber. Glass fiber profiles of the axial strength and modulus of high, no creep, good fatigue resistance, specific heat and conductivity between the non-metallic and metal, thermal expansion coefficient is small, good corrosion resistance, fiber density is low, X Radiation is good. But its impact resistance is poor, easy to damage, under the action of strong acid oxidation, and metal composite metal carbide occurs, carburizing and electrochemical corrosion phenomenon. Therefore, the glass fiber profiles are subject to surface treatment before use. Glass fiber profiles can be made with polyacrylonitrile fiber, asphalt fiber, viscose silk or phenolic fiber by carbonization; according to the status is divided into filament, short fiber and chopped fiber; according to mechanical properties are divided into general and high performance The General glass fiber profile strength of 1000 MPa (MPa), the modulus of about 100GPa. High-performance glass fiber profiles are divided into high-strength (strength 2000MPa, modulus 250GPa) and high model (modulus 300GPa above). Strength greater than 4000MPa, also known as ultra-high strength; modulus greater than 450GPa called ultra-high model. With the development of aerospace and aviation industry, there have been high strength and high tensile glass fiber profiles, the elongation is greater than 2%. The largest amount is polyacrylonitrile PAN-based glass fiber profiles.

Glass fiber profiles can be processed into fabrics, felt, seats, belts, paper and other materials. Glass fiber profiles in addition to insulation materials used, generally not alone, and more as a reinforcing material added to the resin, metal, ceramics, concrete and other materials, constitute a composite material. Glass fiber reinforced composite materials can be used as aircraft structural materials, electromagnetic shielding materials, artificial ligaments and other body substitute materials and for the manufacture of rocket shell, motor boats, industrial robots, automotive spring and drive shaft. Glass fiber profiles are dual-use materials that are key to technology-intensive and politically sensitive materials. In the past, the United States led the Paris Co-ordinating Committee (COCOM), the socialist countries at that time the embargo blockade policy, in March 1994, although the dissolution of COCOM, but the embargo blockade is still shrouded in the sky, advanced glass fiber Profile technology is still not lead in, especially high-performance PAN-based raw silk technology, even if China's accession to the WTO, the situation will not be a big change. Therefore, in addition to people continue to self-reliance development of glass fiber profiles industry, there is no other choice. At present, the world's glass fiber production reached 40,000 tons / year, the world is mainly Japan Toray, Dong Bang rayon and Mitsubishi Rayon three companies and the United States HEXCEL, ZOLTEK, ALDILA three companies, and Germany SGL SGL Group , South Korea Thai light industry, China Taiwan Province, Formosa Plastics Group, and a few units to master the glass fiber production of the core technology, and large-scale production. At present in the mainland has not yet an annual output of 100t large-scale glass fiber profiles factory, mostly in the pilot stage. It is worth mentioning that China's Taiwan Province, Formosa Plastics Group, in the mid-80s from the United States Hitco company introduced 100 tons of glass fiber profile production line, digested, absorbed and supporting the rapid development of Formosa production increased rapidly, but Glass fiber profiles to improve the rate is not large. With the increasing demand for glass fiber profiles in recent years, glass fiber profiles have been listed as the national chemical fiber industry focus on supporting new products, a new domestic materials industry research and development hot spots. According to incomplete statistics, the current proposed and under construction in the glass fiber production enterprises have 11, the total production capacity of 710 tons of raw silk / year, glass fiber profiles 1560 tons / year, of which four enterprises under construction, the total production Capacity of 1100 tons / year for the original silk, glass fiber profiles 470 tons / year.