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Material properties of HDPE
Jan 19, 2018

High-density polyethylene is an opaque white wax-like material, the proportion of lighter than water, the proportion of 0.941~0.960, soft and toughness, but slightly harder than LDPE, but also slightly elongation, non-toxic, tasteless.

The main advantages are acid and alkali resistance, organic solvents, electrical insulation excellent, low temperature, can still maintain a certain degree of toughness. Surface hardness, tensile strength, rigidity and other mechanical strength are higher than LDPE, close to the PP, more than the toughness of pp.

HDPE has good heat resistance and cold resistance, good chemical stability, but also has high rigidity and toughness, good mechanical strength. Dielectric properties, environmental stress and cracking resistance is also better. Hardness, tensile strength and creep are better than low-density polyethylene, wear resistance, electrical insulation, toughness and cold resistance are better. Good chemical stability, at room temperature, insoluble in any organic solvents, acid, alkali and various salts of corrosion, thin film on water vapor and air permeability is small, water absorption is low.

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