Ultra-High Molecular Weight Polyethylene (UHMWPE) is odorless, tasteless, and nontoxic.It was first polymerized in the 1950’s. The first Ultra-High Molecular Weight Polyethylene (UHMWPE) fibers were commercialized in the late 1970’s. It has extremely long chains of polyethylene, which all align in the same direction. Its molecular mass is up to 3.5-7.5million amu, which is far higher than polyester yarn with a molecular mass about 20000.When used in fibers, the polymer chains can get a parallel orientation greater than 95% and a level of crystallinity from 39% to 75%.

With simple molecular structure, UHMWPE has some surface and chemical properties which are rarely found in other high-performance polymers. For example, Because its olefins don’t have polar groups, UHMWPE does not absorb water readily, nor moisture easily. This also makes it bonding to other polymers difficult. For the same reason, skin does not interact with it strongly, so the UHMWPE fiber is very slippery. Since UHMWPE does not contain chemical groups (such as esters, amides or hydroxylic groups), it is very resistant to water, moisture, most chemicals, UV radiation, and micro-organisms.

With high lever of crystallinity and molecular mass, UHMWPE yarn has better temperature conductivity, which can quickly transfer heat and realize ultra cooling effect. Featuring resistance to water, moisture, most chemicals, UV radiation, and micro-organisms, the UHMWPE fiber gives you more protection.

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