What is the difference between HDPE and UHMW-PE materials

High Density Polyethylene, referred to as “HDPE” for short, is a highly crystalline, non-polar thermoplastic resin. The appearance of the original HDPE is milky white, and it is translucent to a certain extent in the thin section. PE has excellent resistance to most domestic and industrial chemicals. Certain plastic machining types of chemicals cause chemical corrosion, such as corrosive oxidants (concentrated nitric acid), aromatic hydrocarbons (xylene), and halogenated hydrocarbons (carbon tetrachloride). The polymer is non-hygroscopic and has good water vapor resistance, and can be used for packaging applications. HDPE has very good electrical properties, especially its high dielectric strength, which makes it very suitable for wire and cable. Medium to high molecular weight grades have excellent impact resistance, even at room temperature and even at low temperatures of -40 degrees Celsius.
UHMWPE’s extremely high molecular weight (the molecular weight of HDPE is usually only 2 to 300,000) gives it excellent performance and belongs to thermoplastic engineering plastics with moderate price and excellent performance. UHMW machining has almost the advantages of various plastics and has ordinary polyethylene It is incomparable with other engineering plastics in terms of wear resistance, impact resistance, self-lubrication, corrosion resistance, impact energy absorption, low temperature resistance, sanitary and non-toxic, non-adhesion, non-absorption of water, and low density. In fact, there is no single polymer material that has so many excellent properties.

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