HI-ZEX MILLION™

Ultra-high molecular weight polyethylene

Usage detail

lining, line guide rails and pickers, battery separators, fiber, filter, adhesive tape

Usage

Characteristic

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New possibilities that only ultrahigh molecular weight polyethylene can offer Abrasion resistance Impact resistance Self-lubrication Chemical resistance

Basic information
Details of Characteristics
Details of Applications

Summary

HI-ZEX MILLION™ is an ultra-high molecular weight polyethylene that was originally developed by Mitsui Chemicals. The average molecular weight of HI-ZEX MILLION™, ranging from 500,000 to 6,000,000, is incomparably greater than that of ordinary polyethylene. Because of its outstanding properties, HI-ZEX MILLION™ is used in a variety of fields: electronic material, industrial material, medical equipment and food manufacturing, etc.

HI-ZEX MILLION™’s density of 930-950 kg/m3 is one of the lowest among engineering resins, and can decrease the weight of the product. In addition, since HI-ZEX MILLION™ does not absorb moisture, HI-ZEX MILLION™ is not subject to swelling or hydrolysis, and preliminary drying is unnecessary before molding. HI-ZEX MILLION™ has a broad range of grade lineups, including hygienic safety grades conforming to FDA specifications, to meet a variety of needs.

Properties

Abrasion resistance

HI-ZEX MILLION™’s abrasion resistance is higher than that of metals such as carbon steel and brass, and is several to more than 20 times as high as that of ordinary polyethylene.

Impact resistance

The impact strength of polyethylene rises as its molecular weight increases. The impact strength of polyethylene reaches its highest level at a molecular weight of 2,000,000. HI-ZEX MILLION™’s impact resistance is higher than that of other resins and ordinary polyethylene, and it is maintained at extremely low temperatures.

Self-lubrication

HI-ZEX MILLION™’s low coefficient of friction allows the un-lubricated sliding of parts that are in contact with metal surfaces without frictional seizing. Furthermore, because of its hydrophobic nature, any water-containing slurry of minerals will not deposit on HI-ZEX MILLION™.

Chemical resistance

HI-ZEX MILLION™ demonstrates excellent chemical resistance and shows high stability against acids and alkalis.

Applications

UML sheets, screws, snow mobile gears/rails, slug hopper lining, battery separators, artificial limbs, high-strength fibers, Sliding tape

Properties

Lineup of ultrahigh molecular weight polyethylene of Mitsui Chemicals

Abrasion resistance

HI-ZEX MILLION™’s abrasion resistance is higher than that of metals such as carbon steel and brass, and is several to more than 20 times as high as that of ordinary polyethylene.

Relationship between polyethylene molecular weight and sand abrasion index

Sand abrasion Index of HI-ZEX MILLION™ Compared with Other materials

Strength is maintained at extremely low temperatures

Molecular Weight Dependence of Impact Strength

Impact Strength of the HI-ZEX MILLION™ Compared with Engineering Resins

Seizing will not occur

HI-ZEX MILLION™’s low coefficient of friction allows the unlubricated sliding of parts in contact with metal surfaces without frictional seizing. Furthermore, because of its hydrophobic nature, any water-containing slurry of metals will not deposit on HI-ZEX MILLION™.