What is PE sheet? What's the wide use?PE sheet: English name High Density Polyethylene, Chinese: polyethylene sheet, PE sheet is a non-polar thermoplastic resin with high crystallinity. The appearance of the original HDPE is milky white, with a certain degree of translucency in the thin section. Has excellent resistance to most household and industrial chemicals. Certain types of chemicals cause chemical corrosion: for example, corrosive oxidants (concentrated nitric acid), aromatic hydrocarbons (xylene) and halogenated hydrocarbons (carbon tetrachloride). The polymer is not hygroscopic and has good water vapor resistance, and can be used for packaging purposes. HDPE has very good electrical properties, especially high dielectric strength, making it very suitable for wire and cable. Medium to high molecular weight grades have excellent impact resistance, even at room temperature or even at low temperatures of -40F. The unique characteristics of various grades of HDPE are an appropriate combination of four basic variables: density, molecular weight, molecular weight distribution, and additives. Different catalysts are used to produce customized special performance polymers. These variables are combined to produce HDPE grades for different purposes; the best balance is achieved in performance. It has good chemical stability, can resist the erosion of most acids, alkalis, organic solutions and hot water, and has good electrical insulation.
PE sheet is odorless, non-toxic, feels like wax, has excellent low temperature resistance (the minimum operating temperature can reach -70 ~ -100 ℃), good chemical stability, can withstand the erosion of most acids and alkalis (not resistant to oxidation properties) Acid), insoluble in common solvents at room temperature, low water absorption, excellent electrical insulation, low density, good toughness (also suitable for low temperature conditions), good stretchability; good electrical and dielectric insulation, low water absorption, Low water vapor permeability, good chemical stability, tensile strength, non-toxic and harmless.
However, PE sheet is very sensitive to environmental stress (chemical and mechanical effects) and has poor heat aging resistance