
Polypropylene is a compound of propylene, acronym PP. PP is full of natural resources, its can be easily combined with other materials and processed, and production cost is low hence the widespread use compared to PE, PP offer increased stiffness. One of its weak points is that when at low temperature, the elasticity is low, and it ages easily. In the recent years, its property has improved to endure lower temperature around 100 and aging using methods such as combining and blending, therefore its use was expanded even more.


