Corrosion resistance, excellent electrical insulation (especially high-frequency insulation), can be chlorinated, modified by irradiation, and can be reinforced with glass fiber. High-density polyethylene has high melting point, rigidity, hardness and strength, low water absorption, and has Good electrical properties and radiation resistance; low density polyethylene has good flexibility, elongation, impact strength and permeability; ultra-high molecular weight polyethylene has high impact strength, fatigue resistance and wear resistance. High density polyethylene is suitable for It is suitable for making corrosion-resistant parts and insulating parts; low-density polyethylene is suitable for making films, etc.; ultra-high molecular weight polyethylene is suitable for making shock-absorbing, wear-resistant and transmission parts.
