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ultra-high molecular weight polyethylene yarn
(1) Wear-resistant characteristics, strong resistance to sliding friction. The wear resistance of ultra-high molecular weight polyethylene pipe is 4-7 times higher than that of ordinary steel pipes and 27.3 times that of stainless steel. It is 17.9 times that of phenolic resin, 6 times that of nylon six, and 4 times that of polyethylene. The average annual wear rate is 0.58 mm, which improves the service life of the pipeline.
(2) Impact resistance. Among the existing engineering plastics, UHMWPE has the highest impact toughness value, and its impact strength is more than 10 times that of PE100 at room temperature. As the ambient temperature decreases, its impact resistance becomes stronger.
(3) Corrosion resistance, able to withstand the erosion of most corrosive media and organic solvents, ultra-high molecular weight polyethylene can be used in concentrated hydrochloric acid with a concentration of less than 80%, sulfuric acid with a concentration of less than 75%, and hydrochloric acid with a concentration of less than 20%. It is quite stable in nitric acid.
(4) Self-lubrication, self-sliding performance is better than oil-lubricated steel or brass. In places where the environment is harsh, dusty, and sandy, the UHMWPE pipe itself has better dry lubrication performance. It can move freely and protect related workpieces from wear or strain. The friction coefficient is only 0.07~0.12, which is 1/5 of ordinary PE, 1/6 of new steel pipe, and 1/20 of rubber.
(5) Non-toxic, ultra-high molecular weight polyethylene material is a nationally certified environmental protection material, non-toxic, tasteless, anti-fouling and moth-resistant new thermoplastic engineering plastics. The US Food and Drug Administration (FDA) and the US Department of Agriculture (USDA) allow it to be used in contact with food and drugs. The main water supply and drainage pipes in many cities in China have been replaced with ultra-high molecular weight polyethylene pipes.
(6) Low temperature resistance, anti-aging, ultra-high molecular weight polyethylene pipe can work at the temperature of -269 ° C to 80 ° C for a long time, because there are few unsaturated molecular groups in the molecular chain, the molecular weight is large, the stability is high, and the aging speed Especially slow, with a longer service life.
(7) The surface is non-adhesive and does not scale. The ultra-high molecular weight polyethylene pipe has a non-adhesive surface due to its small friction coefficient and non-polarity.
