Chemical and Physical Properties
The most common commercial polypropylene has a crystalline structure between low density polyethylene (LDPE) and high density polyethylene (HDPE). Young's modulus (elasticity module) is medium. However, it is less hard than LDPE and much less brittle than HDPE. This allows polypropylene to be used as a substitute for engineering plastics such as ABS.
Polypropylene has very good resistance to fatigue. It is low cost, has good impact resistance. It has low friction coefficient and provides very good electrical insulation. Its chemical resistance is good. It is suitable for all thermoplastic processing processes. Polypropylene has a melting temperature of around 160 ° C.