Aramid paper honeycomb refers to a composite material containing a honeycomb hexagonal structure made of aramid fibers. Aramid paper honeycomb has the characteristics of light weight, good flame retardancy, high temperature resistance, high strength, chemical corrosion resistance, and can absorb a lot of energy, and is in strong demand in the fields of sports equipment, aerospace, national defense and military industry, and transportation.
Aramid fiber is an important substrate for aramid paper honeycomb. Aramid fiber, also known as aromatic polyamide fiber, has the advantages of high modulus, high strength, good electrical insulation, high temperature resistance, good chemical stability, etc., and is listed as the four major fibers of China's key development together with basalt fiber, ultra-high molecular weight polyethylene fiber and carbon fiber. The main preparation methods of aramid fiber include wet spinning, dry spinning and low temperature solution polycondensation. In recent years, with technological progress, China's aramid fiber production capacity has been expanding, which will provide favorable conditions for the development of aramid paper honeycomb industry.
Meta-aramid paper honeycomb is a representative product of aramid paper honeycomb.
Compared with para-aramid paper honeycomb, meta-aramid paper honeycomb has the advantages of good dimensional stability at high temperature, high longitudinal tensile strength and good flame retardancy, and has broad application prospects in the field of high-end equipment. In the future, with the growth of demand for meta-aramid paper honeycomb applications, the prosperity of China's aramid paper honeycomb industry will be improved.
In terms of application fields, the aerospace field is the largest demand side for aramid paper honeycomb. Aramid paper honeycomb has the advantages of light weight and high strength, and can be used to manufacture aircraft engine covers, cabin doors, wings, fairings and spaceborne antennas. In May 2023, China's domestic large aircraft C919 successfully completed its first commercial passenger flight, and the aircraft's passenger and cargo cabin floors and passenger aircraft doors are made of aramid honeycomb materials. In the future, with the continuous progress of China's aerospace technology, the development speed of the aramid paper honeycomb industry will be accelerated.
