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Ultra-high-molecular-weight polyethylene (UHMWPE, UHMW) is a subset of the thermoplastic polyethylene.Also known as high-modulus polyethylene (HMPE), it has extremely long chains, with a molecular mass usually between 3.5 and 7.5 million amu. [1]
IPX UHMW was developed in the early 2000s by material scientists at Interstate Plastics in Sacramento, CA and was first brought to market in 2005 by Interstate Plastics, under the trademark IPX. [2] The acronym IPX-UHMW-PE stands for Interstate Plastics eXtra ultra-high-molecular-weight polyethylene.
High density polyethelene (HDPE) and ultra-high molecular weight polyethylene (UHMW) are the only materials that offer reasonable skating characteristics, with UHMW synthetic rinks offering the most ice-like skating but also being the most expensive. A typical synthetic rink will consist of many panels of thin surface material assembled on top ...
The most common material used is high-density polyethylene (HDPE), but recently [when?] ultra-high-molecular-weight polyethylene (UHMW-PE) is being used by some manufacturers. This new formula has the lowest coefficient levels of friction, at only 10% to 15% greater than real ice.
Polyethylene was first synthesized by the German chemist Hans von Pechmann, who prepared it by accident in 1898 while investigating diazomethane. [12] [a] [13] [b] When his colleagues Eugen Bamberger and Friedrich Tschirner characterized the white, waxy substance that he had created, they recognized that it contained long −CH 2 − chains and termed it polymethylene.
Costco sells its Kirkland Signature Stretch-Tite Plastic Food Wrap in two sizes: 750 square feet rolls (sold in a pack of two) and a single, giant 3,000-square-foot roll. I prefer the two-pack ...
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