23
2019
-
03
HDPE produced by our company
The author:
yyls
High density polyethylene (HDPE) is a white powder or granular product, non-toxic, odorless, with a crystallinity of 80% to 90%, a softening point of 125 to 135 ℃, and a usage temperature of up to 100 ℃; The hardness, tensile strength, and creep resistance are better than those of low-density polyethylene; Good wear resistance, electrical insulation, toughness, and cold resistance; Good chemical stability, insoluble in any organic solvent at room temperature, resistant to corrosion by acids, alkalis, and various salts; The film has low permeability to water vapor and air, and low water absorption; The aging resistance is poor, and the environmental stress cracking resistance is not as good as that of low-density polyethylene. Especially, thermal oxidation can cause its performance to decrease. Therefore, antioxidants and ultraviolet absorbers need to be added to the resin to improve this deficiency. High density polyethylene film has a lower thermal deformation temperature under stress, and attention should be paid when applying it.
耐酸堿，耐有機溶劑，電(diàn)絕緣性優良，高表面硬度，高拉伸強度
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