The density value of high-molecular polyethylene board makes you startled

The density value of high-molecular polyethylene board makes you startled

High-molecular polyethylene board, also known as low-pressure high-density polyethylene, has excellent corrosion resistance to most household and industrial chemicals. Certain types of chemicals cause chemical corrosion, such as corrosive oxidants (concentrated nitric acid), aromatic hydrocarbons (xylene), and halogenated hydrocarbons (carbon tetrachloride). The polymer does not absorb water, has good water vapor resistance, and can be used for packaging. High density polyethylene has good electrical properties, especially high dielectric strength, and is very suitable for wire and cable. Medium to high molecular weight grades have excellent impact resistance, even at room temperature and low temperatures of -40F. The unique characteristics of different grades of high-density polyethylene are an appropriate combination of four basic variables: density, molecular weight, molecular weight distribution, and additives. Achieve the best performance balance. It has good chemical stability and can resist most acids, alkalis, organic solutions and hot water. Good electrical insulation.

The polymer polyethylene sheet has a melting point of about 130 กใ C and a relative density between 0.941 and 0.960. It has good heat resistance and cold resistance, good chemical stability, high rigidity and toughness, and good mechanical strength. Dielectric properties and resistance to environmental stress cracking are also good. Melting temperature is 220 ~ 260C. For materials with large molecular weight, it is recommended that the melting temperature be between 200 ~ 250C.



Tag: Polymer polyethylene sheet


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