and the production capacity of copolymerized polypropylene has steadily increased.

polypropylene (pp) is a polymer formed by the addition polymerization reaction of propylene. it has a transparent and light appearance. according to different polymerization methods, polypropylene can be divided into homopolymerized polypropylene and copolymerized polypropylene. copolymerized polypropylene has the characteristics of high strength, high rigidity, and excellent processing performance, and is the base material for high-end polypropylene special materials. in recent years, as the industrial structure…