Jinneng550J PP Yarn PP Raffia grade granules 

Polypropylene(PP), is a polymer formed by the addition reaction of propylene. There are mainly three types: homopolymerization, random copolymerization, and impact copolymerization. It is a white waxy material with a transparent and light appearance, a density of 0.89-0.91g/cm3, a flammable melting point of 164-170 ℃, softening at around 155 ℃, and a temperature range of -30-140 ℃. It can withstand corrosion from acids, alkalis, salt solutions, and various organic solvents below 80 ℃, and can decompose under high temperature and oxidation. Polypropylene is a high-performance thermoplastic synthetic resin, which is a colorless and translucent thermoplastic lightweight universal plastic. It has chemical resistance, heat resistance, electrical insulation, high-strength mechanical properties, and good high wear resistance processing performance.