Types of PP

In general there are three types of PP: homopolymer, random copolymer, and impact copolymer.
Homopolymer is produced by polymerization of only propylene and shows excellent rigidity and heat resistance property. While it has less transparent and impact strength at low temperature, it can be improved with polymerization not only propylene but with other comonomer like ethylene.
In addition various components such as fillers, impact modifiers, and additives are used to enhance the performance of PP compound.
PP is widely used for automotive, home appliances, and industrial components.