PP plastic raw material, chemical name: polypropylene, features low density, superior strength, rigidity, hardness and heat resistance to low-pressure polyethylene, and can be used at about 100 degree. Good electrical performance, high-frequency insulation, not affected by humidity, but brittle, wear-resistant, easy to age at low temperature. Suitable for manufacturing general mechanical parts, corrosion-resistant parts and insulating parts.
Polypropylene, English name: polypropylene (PP), Japanese name: ポリプロピレン, molecular formula: (C3H6) n. CAS registration number: 9003-07-0, is a thermoplastic resin polymerized from propylene. According to the arrangement position of methyl groups, they can be divided into isotactic polypropylene, atactic polypropylene and syndiotactic polypropylene.
PE (polyethylene for short) Polyethylene (PE for short) is a thermoplastic resin polymerized from ethylene. In industry, it also includes * * * polymers of ethylene and a small amount of α-olefins. Polyethylene is odorless and nontoxic, feels like wax, and has excellent low temperature resistance, good chemical stability and resistance to most acid and alkali corrosion. Insoluble in general solvents at room temperature, low water absorption and excellent electrical insulation. Polyethylene has general mechanical properties, low tensile strength, poor creep resistance and good impact resistance. Polyethylene can be widely used to make films, hollow products, fibers and daily necessities through blow molding, extrusion and injection molding.