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Polyethylene Sheet, Also Known As Low Pressure High Density Polyethylene

Sep 02, 2019

Polyethylene sheet, also known as low pressure high density polyethylene, HDPE board, PE board, HDPE rod. It is a thermoplastic resin with high crystallinity and non-polarity. The original HDPE has a milky white appearance and a semi-transparent shape in a thin section. PE sheets are excellent in resistance to most domestic and industrial chemicals. Polyethylene sheets Some types of chemicals can cause chemical corrosion, such as corrosive oxidants (), 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 purposes. HDPE has excellent electrical properties, especially high dielectric strength, making it suitable for wire and cable. The medium to high molecular weight grade has excellent impact resistance, both at normal temperature and even at -40F low temperature. The unique characteristics of 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 specialty polymer. These variables combine to produce HDPE grades for different applications; a good balance of performance. It has good chemical stability and can resist the erosion of most acids, alkalis, organic solutions and hot water. Electrical insulation is good. Polyethylene sheet is odorless, non-woven, feels like wax, has excellent low temperature resistance (low temperature can reach -70 ~ -100 °C), good chemical stability, and can resist most acid and alkali corrosion (not resistant to oxidizing properties) Acid), insoluble in common solvents at normal temperature, low water absorption, excellent electrical insulation properties; low density; good toughness (also suitable for low temperature conditions); good tensile properties; good electrical and dielectric insulation; low water absorption; Low water vapor permeability; good chemical stability; tensile resistance; no harmless. However, PE sheets are very sensitive to environmental stresses (chemical and mechanical effects) and have poor heat aging resistance. Product application appliance parts, seals, cutting boards, sliding profiles. Widely used in chemical, machinery, electric power, clothing, packaging, food, environmental protection, textile and other industries. Widely used in gas transportation, water supply, sewage, agricultural irrigation, fine particle solids transportation, as well as oilfield, chemical and postal and telecommunications, especially in gas transportation.