Polypropylene, abbreviated as PP, is a colorless, odorless, non-toxic, translucent solid material. Polypropylene (PP) is a thermoplastic synthetic resin with excellent properties and is a colorless and translucent thermoplastic lightweight general-purpose plastic. With chemical resistance, heat resistance, electrical insulation, high strength mechanical properties and good high wear resistance, it has made polypropylene rapidly in machinery, automotive, electronics, construction, textile and packaging since its inception. Many fields such as agriculture, forestry, fishery and food industry have been widely developed and applied. In recent years, with the rapid development of China’s packaging, electronics, automotive and other industries, it has greatly promoted the development of China’s industry. And because of its plasticity, polypropylene materials are gradually replacing wood products, and high strength toughness and high wear resistance have gradually replaced the mechanical functions of metals. In addition, polypropylene has good grafting and compounding functions, and has a huge application space in concrete, textile, packaging and agriculture, forestry and fishery.