Product Description
Honghang Brand Factory Direct Auto Accessories Parts Universal Front Bumper Lip Splitter Universal Body Kits For All Car. The density of (PP) is between 0.895 and 0.92 g/cm3. Therefore, PP is the commodity plastic with the lowest density. With lower density, moldings parts with lower weight and more parts of a certain mass of plastic can be produced. Unlike polyethylene, crystalline and amorphous regions differ only slightly in their density. However, the density of polyethylene can significantly change with fillers.The Young's modulus of PP is between 1300 and 1800 N/mm².Polypropylene is normally tough and flexible, especially when copolymerized with ethylene. This allows polypropylene to be used as an engineering plastic, competing with materials such as acrylonitrile butadiene styrene (ABS). Polypropylene is reasonably economical.[citation needed] Polypropylene has good resistance to fatigue.