The name of this product is polypropylene (PP) and its chemical formula is [CH2-CH (CH3)] n–. Polypropylene is one of the most widely used and basic polymers used in the world and the largest consumer of propylene. It was first produced on a laboratory scale in the early 1950s and then commercialized later in the decade. It was initially estimated that the cost of producing PP polypropylene was lower than that of PE polyethylene.
Polypropylene PP is produced in three forms isotactic, syndiotacti, and atactic, which is mainly in the isotactic form and with the addition of a small amount of other monomers (mostly PE polyethylene).
Polypropylene The polymerization of propylene is performed at relatively mild temperatures and pressures in the presence of the famous Ziegler-Nata catalyst. The presence of this catalyst forms an isotactic polymer that is able to crystallize up to about 90%.
Polypropylene is one of the most widely used plastics and today it is widely used in various industries.
Polypropylene is a polymer with a density of approximately 0.9 g / cubic centimeter obtained from the polymerization of propylene monomer. This material is resistant to moisture, oils and ordinary solvents and melts at a temperature of about 170 degrees Celsius. This non-toxic and odorless substance, when burned like a candle, turns into melted wax-like droplets and burns with smokeless flames and a slightly nasty odor. The combination of properties such as lightness, hardness, toughness, chemical resistance and surface polish has led to a variety of products made from this material. One of the important properties of PP is its high stability against bending at low thickness () Polymeric nge plastic springs that allow the production of a wide variety of parts.