PE sheet: High Density Polyethylene, PE sheet is a high degree of crystallinity, non-polar thermoplastic resin. The appearance of the original HDPE was milky white, in a slight cross-section was a certain degree of translucent.
Has excellent resistance to most of the characteristics of life and industrial chemicals. Certain types of chemicals can produce chemical corrosion: for example, 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 good electrical properties, especially dielectric dielectric strength, making it very suitable for wire and cable. Medium to high molecular weight grade has excellent impact resistance, at room temperature even in the -40F low temperature are so. The unique properties of the various grades of HDPE are the appropriate combination of four basic variables: density, molecular weight, molecular weight distribution and additives.
Different catalysts are used to produce custom special properties polymers that combine to produce different grades of HDPE grades; achieve the best balance in performance. Has good chemical stability, can resist most of the acid, alkali, organic solution and hot water erosion, good electrical insulation.
Resistant to the majority of acid and alkali erosion (intolerance of acid with acid), at room temperature insoluble in general solvent, water absorption, excellent electrical insulation, low density, good toughness (the same applies to low temperature conditions), good tensile ; Electrical and dielectric insulation is good, low water absorption, low water vapor permeability, chemical stability, tensile, non-toxic harmless.
However, PE sheet is very sensitive to environmental stress (chemical and mechanical action), poor heat aging resistance.