Ultrahigh molecular weight polyethylene having a molecular weight of more than 1.5 million linear polyethylene unbranched. Formula: - (- CH2-CH2 -) - n- polyethylene coal bin liner wear production, density: 0.920 ~ 0.964g / cm3. Heat distortion temperature (0.46MPa) 85 ℃, m.p. 130 ~ 136 ℃. Ultra high molecular weight polyethylene (UHMW-PE) is a thermoplastic engineering plastic with excellent overall performance of a linear structure. Development of ultra high molecular weight polyethylene History: 2007 2009 - China has gradually become the world's plastics factory, super molecular weight polyethylene industry development is very rapid. In the 1930s it was suggested that the first ultrahigh molecular weight polyethylene fibers on the basic theory.