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UHMW-PE (Ultra High Molecular Weight Polyethylene) Overview

Jul 03, 2019

UHMW-PE is an abbreviation for English Ultra High Molecular Weight Polyethylene. This is the highest quality polyethylene available for use in harsh working environments and for a variety of applications. The applicability is very good under many difficult application conditions. PE is divided into three categories:

1. Low density PE, medium density PE, high density PE

2. Low density polyethylene (less than 0.930 g / cm 3 / less than 0.0334 lb / cubic inch)

3. Medium density polyethylene (between 0.930 and 0.940 g/cm 3 / between 0.0334 and 0.0338 cubic inches) high density polyethylene (greater than 0.940 g/cm 3 / more than 0.0338 lb / cubic inch. Molecular weight approx. 100,000)

High molecular weight, high density molecular weight polyethylene (molecular weight greater than 200,000 less than 500,000). This product is manufactured by two methods using a catalyst: one is the Ziegler method, which uses a titanium catalyst; the other is the Phillips method, which uses a chromium oxide catalyst. The techniques of the two methods include suspension, dissolution, gas phase and agglomeration under different pressures, under which the vinyl molecules form a linear macromolecule by anionic polymerization.

Ultra-high polymer strength PE

Ultra high molecular weight polyethylene (density greater than 0.940 g/cc, ie greater than 0.0338 lbs/in3, molecular weight greater than 1,500,000).