carbon fiber development

Overview of the development of foreign carbon fiber

Update time : 2023-07-27 22:42:57

Carbon fiber has excellent physical and chemical properties such as high strength, high modulus, low density, light weight, chemical corrosion resistance, and high temperature resistance. It can be used in aerospace, sensing technology, wind turbine blades, rail transit, safety protection and other fields. Ultra-high-performance carbon fiber has a wide range of applications, and its demand is increasing day by day, which has become a current research hotspot. In terms of carbon fiber production and research, Japan and the United States occupy a dominant position. The following mainly introduces the development overview of its carbon fiber production enterprises or research institutions in recent years.

Japan Toray

In response to the new situation, Toray will integrate the carbon fiber composite (CFRP) research institute of CFE, a carbon fiber production and sales company in France, into its Toray Advanced Composites in the Netherlands in mid-July 2021. (TAC), and accelerate the development of thermoplastic prepregs for next-generation aircraft. From the perspective of medium-term goals, coping with climate change and meeting the needs of the future energy industry will be an important goal of Toray Carbon Fiber and its CFRP industry. Recently, Toray is focusing on the research and development of three new technologies: jointly developing with Mitsui Offshore Development Co., Ltd. a new technology for repairing floating offshore oil and natural gas storage and transportation equipment with CFRP; using high thermal conductivity technology to develop CFRP with heat dissipation equivalent to that of metal; Using hollow fiber-like porous carbon fiber as a support and a thin carbon membrane with a separation function on the surface, a CO2 separation membrane with an all-carbon two-layer structure is formed. Compared with the previous inorganic separation membrane, this equipment can be miniaturized. years of industrialization.

Teijin

Teijin's carbon fiber business suffered a loss of 6.7 billion yen due to the impact of the decline in demand for cars and aircraft during the new crown epidemic. Due to the sharp drop in sales of aircraft applications, it has strengthened its sales in the fields of wind power blades and sports and leisure, and has now begun to produce and sell carbon fiber prepregs for sports and leisure uses in Vietnam, including fishing rods, golf clubs, automobiles, ice For related purposes such as clubs, the production of aircraft products will be considered in the future. The new unidirectional CF/PPS tape prepreg "TenaxTM TPUD" produced by Teijin Carbon Fiber's European subsidiary has better chemical resistance, heat resistance, recyclability, low water absorption, dimensional stability, and high temperature resistance. Creep resistance, and can be molded in a short time, stored and transported at room temperature. Teijin has also developed ultra-fine functional carbon fiber "PotenCia", with a fiber diameter of 0.1-0.5 μm, which has the advantages of low crystallinity, excellent dispersion and low resistance. It will be suitable as a conductive additive for lithium-ion secondary batteries and double-layer capacitors in the future.

Georgia Institute of Technology, University of Florida, University of Connecticut, Wright-Patterson Air Force Base Air Force Research Laboratory, UES.Dayton and Boeing jointly studied the preparation and processing of porous and hollow carbon fibers and the relationship between their structure and performance. The sea-island composite filament is produced by the sea-island spinning method, polyacrylonitrile (PAN) is the sea component, polymethacrylate (PMMA) is the island component to be removed, and then carbonized into a continuous hollow carbon fiber multifilament with a honeycomb cross section. Its density is 1.15g/cm3, which is 30% lower than that of ordinary carbon fibers; its tensile strength is 2.3-3.0GPa, which is about 60% higher than that of T300 grade; IM7 is about 20% higher and higher than 1.6 GPa of the previously reported hollow carbon fibers.

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Overview of the development of foreign carbon fiber

Japan Toray

Teijin