Nano-carbon fiber composite material is a new material composed of nano-carbon fiber and metal, resin and other matrix composites. Compared with the original material, its strength, toughness, and high temperature resistance have been improved a lot, and its performance is superior. There are certain requirements for carbon nanofibers used to make composite materials. The following editor will give you a specific explanation.

1. Requirements for metal content. In the manufacture of composite materials, the most basic requirement for carbon nanofibers is that the content of alkali metals is low. Alkali metals such as sodium are carbon oxidation catalysts and can promote combustion. Carbon nanofibers are often used as flame retardant materials. In the 1970s, viscose-based fibers with sodium content of about 100mg/kg were used to make carbon nanofiber composite materials. After the 1980s, PAN-based carbon nanofibers with sodium content below 100mg/kg were used. Now, The content of alkali metal in nano carbon fiber composite material is even less.

2. Requirements for performance. Carbon nanofibers used to make composite materials must be of high modulus and medium strength or high strength and medium modulus. Their thermal performance is relatively excellent, there are few cracks during the carbonization process, and the comprehensive utilization rate is high.

3. Requirements for surface treatment of carbon nanofibers. The surface treatment of nano-carbon fiber has a great influence on the composite material produced. If the treatment is not good, the fiber will break and the strength will decrease.

Choose the appropriate nano-carbon fiber material and combine it with other materials, so that the two can be better combined, and the performance of the composite material will be better. Nano-carbon fiber composite materials are widely used in our lives. They are used in airplanes, automobiles, and buildings. Its scope of use is still expanding, and it continues to benefit mankind.