PE refers to polyethylene (Polyethylene), which is a thermoplastic obtained by polymerization of ethylene monomers. Polyethylene has the characteristics of good chemical stability, corrosion resistance, insulation, easy processing and molding, and excellent low-temperature strength. It is a common plastic material widely used in industry and daily life.
According to different preparation methods, polyethylene can be divided into high-density polyethylene (HDPE), low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE) and other types. Among them, HDPE has high hardness, heat resistance and pressure resistance, and is often used in the manufacture of hard plastic containers, water pipes, underground drainage pipes, etc.; LDPE has good flexibility and tensile properties, and is often used in the manufacture of flexible packaging films , food bags, plastic film, etc.
PE is an important plastic material that is widely used in various fields, such as packaging, construction, electronics, automotive, medical, agriculture, etc. It not only has low cost and good performance, but also has good recyclability and environmental protection, and is an excellent plastic material.
PVDF refers to polyvinylidene fluoride (Polyvinylidene fluoride), which is a high-performance thermoplastic resin obtained by polymerization of vinylidene fluoride monomer. PVDF has high chemical resistance, high temperature stability, excellent electrical insulation performance, ultraviolet radiation resistance, non-flammability and other excellent properties, so it is widely used in chemical industry, electronics, aerospace, construction, medical and other fields.
PVDF has good processing performance and molding performance, and can be prepared into products of various shapes and specifications by extrusion, injection molding, calendering and other methods. PVDF products have a wide range of applications, such as:
Chemical field: PVDF can be used to manufacture chemical equipment such as storage tanks, pipes, valves, pumps, etc. It has excellent properties such as corrosion resistance and high temperature resistance.
Electronic field: PVDF can be used to manufacture electronic components such as cables, battery diaphragms, and sensors, and has good electrical insulation properties and chemical stability.
Construction field: PVDF can be used to manufacture construction materials such as building exterior wall panels, roofs, and heat insulation materials, and has good weather resistance and UV resistance.
Medical field: PVDF can be used to manufacture medical devices such as medical pipelines and artificial organs, and has the advantage of good biocompatibility.
In a word, PVDF is a polymer material with excellent performance and has broad application prospects.
PE AND PVDF
The application of PE and PVDF in aluminum foil is mainly as a coating material to enhance the moisture resistance, oxidation resistance and corrosion resistance of aluminum foil. Specifically:
PE coated aluminum foil: PE coated aluminum foil is a protective layer formed by coating PE resin on the surface of aluminum foil by extrusion, coating and other methods. PE coated aluminum foil has good moisture resistance, oxidation resistance and corrosion resistance, and can be used to manufacture various fresh-keeping bags, food packaging bags, building insulation materials and other products.
PVDF coated aluminum foil: PVDF coated aluminum foil is a protective layer formed by coating PVDF resin on the surface of aluminum foil by hot melt coating and other methods. PVDF coated aluminum foil has strong weather resistance, chemical corrosion resistance and high temperature resistance, and can be used to manufacture high-end products such as building exterior wall panels, roof materials, aircraft, and automobiles.
In practical applications, PE-coated aluminum foil and PVDF-coated aluminum foil can be selected according to specific requirements. Generally speaking, the price of PE-coated aluminum foil is relatively low, which is suitable for some products with low requirements, while the price of PVDF-coated aluminum foil is higher , suitable for high-demand products.