Knowledge and characteristics of aramid yarn

Aramid yarns are high modulus aramid yarns for ADSS cables, non-metallic cables and indoor cables. Aramid yarns have special properties such as low density, very high tensile modulus, high breaking strength and low elongation at break; at higher temperatures, they maintain inherent stability, very low shrinkage, and low The creep and very high glass transition temperature, in addition to high corrosion resistance, non-conducting, in addition to strong acid and alkali, has strong chemical resistance, is a superior cable reinforcement unit material.

The chemical name of aramid yarn is "polyphenylene terephthalate to diamine". The Chinese translation of "Kevlar", a registered trademark of DuPont, is "Kevlar", which was developed and commercialized by DuPont in 1965.

Due to the molecular chain rigidity of the aramid yarn, there is lyotropic liquid crystal, and the anisotropic texture is easily formed under the shearing force in the solution. It has high heat resistance, glass transition temperature of 380 ° C, thermal decomposition temperature of 580 ° C, and the strength remains above 84% when placed at 180 ° C for 48 hours. High tensile strength and initial elastic modulus, fiber strength 0.215N/D, modulus 4.9-9.8N/D, specific strength is 5 times that of the same modulus, and the compressive bending strength is low only for composite materials. Inorganic fiber. Thermal shrinkage and creep properties are stable, in addition to high insulation and chemical resistance.

Features:

The main advantage of aramid yarn

●Light specific gravity, high modulus

●Good temperature performance

●High strength, low extension

● Excellent wear resistance and cutting resistance

● corrosion resistance, low creep

●Good fatigue resistance

Zhejiang Xuantai New Material Co., Ltd. is a comprehensive enterprise specializing in R&D, production and sales of high-performance fibers such as aramid yarn, aramid crimp and glass fiber. Welcome to inquire.