What is High Density Polyethylene
High density polyethylene (HDPE), white powder or granular product. Non-toxic, tasteless, crystallinity of 80% to 90%, softening point of 125 to 135°C, use temperature up to 100°C; hardness, tensile strength and ductility are better than low density polyethylene; wear resistance, electrical Good insulation, toughness and cold resistance; good chemical stability, insoluble in any organic solvent at room temperature, corrosion resistance of acid, alkali and various salts; thin film permeability to water vapor and air, water absorption Low; poor aging resistance, environmental stress cracking resistance is not as good as low density polyethylene, especially thermal oxidation will reduce its performance, so antioxidants and ultraviolet absorbers must be added to the resin to improve this deficiency. High-density polyethylene film has a low heat distortion temperature under stress, so pay attention to it when applying it.
[English name] High Density Polyethylene[English abbreviation] HDPE
[Common name] Low pressure ethylene
[Composition monomer] Ethylene [Basic characteristics] HDPE is an opaque white wax-like material with a specific gravity lighter than water, with a specific gravity of 0.941~0.960. It is soft and tough, but slightly harder than LDPE, and also slightly stretchable, non-toxic and tasteless.
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