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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]
UHMWPE is polyethylene with a molecular weight numbering in the millions, usually between 3.5 and 7.5 million amu. [25] The high molecular weight makes it a very tough material, but results in less efficient packing of the chains into the crystal structure as evidenced by densities of less than high-density polyethylene (for example, 0.930–0. ...
The acronym IPX-UHMW-PE stands for Interstate Plastics eXtra ultra-high-molecular-weight polyethylene. [3] IPX 2000 UHMW is naturally red in color, and not approved for direct food contact like virgin UHMW. [4] IPX maintains a high resistance to corrosive chemicals except oxidizing acids; and offers even lower moisture absorption and a lower ...
It is resistant to moisture and most of the chemicals. It is flexible at room temperature (and low temperature) and can be heat sealed. Since it is an inexpensive plastic it is made in large amounts to cater to the demand. For example: ultra-high-molecular-weight polyethylene (UHMWPE) is tough and resistant to chemicals. It is used to ...
The high solvent retention allows for ultra-high drawing as with ultra high molecular weight polyethylene (UHMWPE) (e.g., Spectra ®) to produce fibers with a high degree of orientation, which increases fiber strength. The fibers are first cooled either with air or in a liquid bath to induce gelation, then the solvent is removed through ageing ...
The recall involves Samurai-branded white-and-silver plastic mini smoke alarms, model number SM1, which is indicated on the packaging. Recalled Samurai Mini Smoke Alarm — front / Credit: U.S ...