What is carbon fiber? What resin is used for carbon fiber? A high-strength, high-modulus fiber with a carbon content of 90% or more. High temperature resistance ranks first among all chemical fibers. Acrylic fiber and viscose fiber are used as raw materials and are carbonized by high temperature oxidation. It is an excellent material for manufacturing high-tech equipment such as aerospace. Process: The modern carbon fiber industrialization route is the precursor fiber carbonization process method. The composition and carbon content of the three raw material fibers used are shown in the table. Slipper Socks,Thick Cotton Knit Slipper Socks,Grey Slipper Socks,Knit Non-Slip Slipper Socks Jingjiang Pingdong Import&Export Co.,Ltd , https://www.jingjiangsocks.com
A special fiber composed of carbon. It has the characteristics of high temperature resistance, anti-friction, electric conduction, heat conduction and corrosion resistance. It is fibrous, soft and can be processed into various fabrics. Because its graphite microcrystalline structure is optimally oriented along the fiber axis, it has a high orientation along the fiber axis. Strength and modulus. Carbon fibers have a low density and therefore high specific strength and specific modulus. The main use of carbon fiber is to make advanced composite materials as a reinforcing material combined with resin, metal, ceramic and carbon. Carbon fiber reinforced epoxy resin composites have the highest specific strength and specific modulus among existing engineering materials.
Fibrous fiber name for chemical fiber carbon content /% carbon fiber yield /% viscose fiber (C6H10O5) n4521 ~ 35 polyacrylonitrile fiber (C3H3N) n6840 ~ 55 asphalt fiber C, H9580 ~ 90
The process for producing carbon fibers using these three types of fibrils includes: stabilization treatment (air treatment at 200 to 400 ° C, or chemical treatment with a flame resistant reagent), carbonization (400 to 1400 ° C, nitrogen), and graphitization (above 1800 ° C). Under argon atmosphere). In order to improve the bonding performance between the carbon fiber and the composite substrate, surface treatment, sizing, drying and the like are required.
Another method of making carbon fibers is the vapor phase growth method. By reacting a mixed gas of methane and hydrogen in the presence of a catalyst at a high temperature of 1000 ° C, discontinuous chopped carbon fibers can be obtained with a maximum length of 50 cm. Its structure is different from polyacrylonitrile-based or pitch-based carbon fiber, easy to graphitize, good mechanical properties, high conductivity, easy to form interlayer compounds. (See vapor grown carbon fiber)