New chemical fiber fabric aramid fabric

Any synthetic linear macromolecule composed of an aryl group with an amide bond connected to each other, wherein at least 85% of the amide bonds are directly connected to two aryl rings, and 50% of the amide bonds can be imine bonds. Substitutes are called aromatic polyamides. The fibers made from long-chain macromolecules of aramid are called aramid fibers, and our country is called aramid.

Aramid 1313 fabric

Poly(m-xylylene)-diphenylene-diamine fiber is a wholly aromatic polyamide fiber obtained by the polycondensation of aromatic diamines and aromatic diacid chlorides. It is called aramid 1313 in China, and the United States is called Nomex. Japan is called Conax and the former Soviet Union is called Finair. This fiber was first successfully manufactured by DuPont in the United States in 1960. It was officially industrialized in 1967. It is the first type of high-temperature resistant fiber, and it is also the most widely used fiber in all high-temperature resistant fibers.

Aramid 1313 is currently mainly used in the production of filter materials, conveyor belts and electrical insulating materials used under high temperature; it is also used in the production of fire curtains, flame-retardant gloves, fire fighting suits, heat-resistant work clothes, parachutes, flight suits, space suits, Thermal radiation and chemical protective clothing, etc.; can also be used to make civil aviation technology or some high-grade car flame retardant decorative fabrics. Aramid 1313 hollow fiber can also be used for salt water and seawater desalination according to the principle of reverse osmosis.

Aramid 1414 fabric

The product of poly(p-phenylene terephthalamide fiber came out in 1972 and became Kevler at first. China’s aramid 1414 is a high-strength product developed by DuPont for the reinforcement of tires and other rubber products. Polyamide fiber.

At present, three-quarters of the production of poly(p-phenylene terephthalamide) fibers is used to produce high-grade tires. In addition, it can be used to make composite reinforced plastics, special canvases and ropes. Since the poly(p-phenylene terephthalamide) fiber has the property of being transparent to microwaves, the cover for making devices such as a radar is also very suitable.

In addition to the tire industry, poly(p-phenylene terephthalamide) fibers have many other promising applications, such as the use as reinforcing fibers in high-pressure hoses, V-belts, conveyor belts, and in the production of cables. (such as deep sea cables), belts and bulletproof vests.
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