High density polyethylene is introduced as follows:
High density polyethylene (HDPE) is a thermoplastic polymer material, which is polymerized from ethylene monomer. Its molecular structure is highly ordered, with high tensile strength, stiffness, hardness and chemical stability. In the manufacturing process of HDPE, special flame retardant can be added to achieve the flame retardant effect, and pigments and other additives can also be added to meet specific requirements.
HDPE has excellent physical and mechanical properties, such as high tensile strength, high modulus, excellent wear resistance, low water absorption and low friction coefficient. In addition, HDPE has good chemical resistance, ultraviolet resistance and flame retardancy. Therefore, HDPE materials are widely used to manufacture pipes, plates, bags, toys, bottle caps, medical devices and so on.
High density polyethylene application:
1. Manufacturing pipeline: HDPE pipeline has smooth inner wall, low internal friction coefficient, good impact resistance and long service life, and is widely used in water conservancy, petroleum, chemical industry, municipal administration and other fields.
2. Manufacturing plate: HDPE plate has low water absorption and good processability, and is widely used in chemical-related industrial fields, such as manufacturing storage tanks, sewage treatment equipment, acid-base liquid containers, etc.
3. Manufacturing luggage: HDPE luggage has the advantages of portability, compression resistance, tear resistance and corrosion resistance, and is widely used in food, medicine, cosmetics and other industries.
4. Making toys: The toys made of HDPE are light, soft, waterproof, high in toughness and impact-resistant. At the same time, anti-ultraviolet components can be added in the production process, which has good anti-aging ability.
5. Manufacturing bottle caps: HDPE bottle caps are non-toxic, oil-resistant and temperature-resistant above 100℃, so they are widely used in the field of liquid packaging.
6. Manufacture of medical devices: The medical devices made of HDPE have the characteristics of low pollution, good hardness and good chemical stability, such as surgical instruments, infusion bags and syringes.
In a word, high density polyethylene, as an excellent thermoplastic polymer material, has a wide range of applications. In addition to the above fields, it can also be used in agriculture, paper making, culture and education, national defense, automobile manufacturing and other fields.