The term "pp material" refers to polypropylene, a lightweight polymer that melts at high temperatures. It melts at high temperatures, and is widely used in everyday life to make different products from molded pp material. pp material is one of the lightest plastics, and is non-toxic and odorless. The easiest way to understand what pp is is from its physical properties. The shrinkage rate of pp is relatively large, so the molded products lack precision in size. However, the surface of pp material products is glossy and beautiful, which is conducive to the coloring of products.
pp material properties:
1, polypropylene is a thermoplastic polymer (thermoplastic: refers to a material that can be heated to melt after cooling there can be hardened, and can be repeated; polymer refers to the natural or synthetic compounds, its molecules are repeated by a series of simple monomer small children connected to the macromolecules), the application of a very wide range of applications, and even Australia's banknotes are made of PP. PP has extraordinary resistance to chemical solvents, acids and alkalis.
2, can make high purity PP, used in the semiconductor industry. It is also resistant to bacterial production and is suitable for disposable syringes and medical devices. It can be used for injection molding or machining and welding. It can be used for pipes, filtering materials, horn cylinders and other plastic products with higher quality requirements than polyethylene products. The bill is made of biaxially oriented polypropylene (BOPP) so that its durability is improved.