1, different types: PP refers to polymer polypropylene, and plastics are polymer compounds polymerized by addition polymerization or polycondensation, with many types.
2. Different components: PP is a kind of thermoplastic synthetic resin with excellent performance, and the main component of colorless translucent thermoplastic light general plastic is resin.
3. Different properties: PP has chemical resistance, heat resistance, electrical insulation, high-strength mechanical properties and good wear resistance. Plastics are mainly used in rosin, shellac, plexiglass and polystyrene.
4. Polypropylene, abbreviated as PP, is a polymer formed by addition polymerization of propylene. It is a white waxy substance with a transparent and light appearance. The chemical formula is (C3H6)n, its density is 0.89 ~ 0.9 1g/cm3, it is flammable, its melting point is 164~ 170℃, it softens at about 155℃, and its service temperature range is-30 ~/kloc. It can resist the corrosion of acid, alkali, salt solution and various organic solvents below 80℃, and can be decomposed under high temperature and oxidation.