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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. ...
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 coefficient of friction versus UHMW. IPX UHMW is self-lubricating; and is highly resistant to abrasion. [5]
Compared to polyethylene, polypropylene is stiffer but less prone to breaking. It is less dense but shows more chemical resistance. [11] Synthetic base oil (by far the most used one): industrial and automotive lubricants. [12]
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 ...
Proposed 25% U.S. tariffs on Canada and Mexico could lead to a sharp increase in vehicle prices, auto industry executives and analysts say.
LLDPE has penetrated almost all traditional markets for polyethylene; it is used for plastic bags and sheets (where it allows using lower thickness than comparable LDPE), plastic wrap, stretch wrap, pouches, toys, covers, lids, pipes, buckets and containers, covering of cables, geomembranes, [2] and mainly flexible tubing. It is also common to ...
Egg yolks, some mushrooms, cod liver oil, beef liver and fatty fish, like salmon, tuna and swordfish, all naturally contain vitamin D. You’ll also find some foods fortified with it, including ...