HDPE generally refers to high-density polyethylene. High-density polyethylene (HDPE) is a white powder or granular product. ℃; hardness, tensile strength and creep are superior to low-density polyethylene; wear resistance, electrical insulation, toughness and cold resistance are better; chemical stability is good, insoluble in any organic solvent at room temperature, acid-resistant , alkali and various salts; the film has low permeability to water vapor and air, low water absorption; poor aging resistance, environmental stress cracking resistance is not as good as low-density polyethylene, especially thermal oxidation will make its performance Decline, so the resin must be added antioxidants and UV absorbers to improve this deficiency. High-density polyethylene film has a low heat distortion temperature under stress, so care should be taken when applying it.
