Polypropylene

China Polypropylene Suppliers

Polypropylene, also known as Pp Resin, is a thermoplastic polymer used in a wide variety of applications. Virgin Pp Resin is produced via chain-growth polymerization from the monomer propylene.As one of Rubber And Plastic,like Eva Resin,Pvc Resin,Pp Resin Polypropylene belongs to the group of polyolefins and is partially crystalline and non-polar. Plastic Pp Granules Resin properties are similar to polyethylene, but it is slightly harder and more heat resistant. It is a white, mechanically rugged material and has a high chemical resistance.

Pp Resin is in many aspects similar to polyethylene, especially in solution behaviour and electrical properties. The methyl group improves mechanical properties and thermal resistance, although the chemical resistance decreases. The properties of Pp Resin Polypropylene depend on the molecular weight and molecular weight distribution, crystallinity, type and proportion of comonomer (if used) and the isotacticity. In Pp Powder Resin, for example, the methyl groups are oriented on one side of the carbon backbone. This arrangement creates a greater degree of crystallinity and results in a stiffer material that is more resistant to creep than both atactic polypropylene and polyethylene.