Classification Of Polypropylene Film

Polypropylene (PP) has a high melting point and excellent comprehensive properties. It is one of the most promising thermoplastic polymer materials today. Compared with other general thermoplastics, it has low price, small specific gravity, yield strength, tensile strength, and surface It has excellent mechanical properties such as strength, outstanding stress crack resistance and wear resistance, good chemical stability, easy molding and processing, and a wide range of applications. It has been widely used in chemicals, electrical appliances, automobiles, construction, packaging, etc. industry. At present, most of the packaging market from food to groceries uses plastic film instead of paper as a flexible packaging material. The plastic film used for commodity flexible packaging must meet the requirements of protection, workability, convenience and economy of commodity packaging materials, have appropriate strength, have barrier properties, stability, safety, aesthetics and transparency, and economical convenience sex.