Development of ultra high molecular weight polyethylene History: 2007 2009 - China has gradually become the world's factory ultrahigh molecular weight polyethylene plastic pad wholesale, 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. UHMWPE identification methods: visual methods. The real UHMWPE surface smooth, uniform, smooth and very uniform density section, if not pure polyethylene material is faded and uneven density. UHMWPE is a polymer compound.