Polypropylene filling modification, these 7 kinds of mineral powders have their own strengths
Polypropylene (PP) is a popular thermoplastic polymer. It is vital in packaging, appliances, and auto parts. Its easy processing and great properties make it useful. PP still has some limits. It has high heat shrinkage, low performance in cold, and poor impact resistance. These problems have led people to add inorganic mineral powders to it. […]