Carbon fiber is a fibrous carbon material. It is a new type of material that is stronger than steel and has a higher density than aluminum and is more resistant to corrosion than stainless steel. It is more resistant to heat than heat resistant steel and can be conductive like copper. It has many valuable new materials for electrical, thermal and mechanical properties. Carbon fiber is mainly made of carbon fiber reinforced plastic composite materials to apply.

Chopped carbon fiber

Each carbon fiber consists of thousands of tiny carbon fibers of about 5 to 8 m. At the atomic level, carbon fibers are very similar to graphite, and are composed of carbon atoms arranged in a hexagonal form. The difference between carbon fiber and graphite lies in the connection between layers. Graphite is a crystal structure, its interlayer connection is loose, and carbon fiber is not a crystal structure, the interlayer connection is irregular, so to prevent slipping, enhance the strength of the material.
General carbon fiber density of 1750kg / m3, high thermal conductivity but low transmission capacity, carbon fiber specific heat capacity is lower than copper. When heated, the carbon fiber becomes thicker and shorter. Although the natural color of carbon fiber is black, but scientists can dyed it into different colors.

Carbon fiber has the flexibility of ordinary textiles, can be processed into fabric, felt, seats, belts, paper and other materials. Traditional use of carbon fiber 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. Carbon 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.

From 1994 to 2002, with the academic research from short fiber carbon fiber to long fiber carbon fiber, the technology and products using carbon fiber to make the heating material have gradually entered the military and civilian fields. Now the country has been using long-fiber carbon fiber production of national grid cable use cases many. At the same time, carbon fiber heating products, carbon fiber heating products, carbon fiber far infrared therapy products are more and more into the homes of ordinary people.