Basic method of making color mud
The main material of the PP Luggage are pp, PP is polypropylene resin. Because the homo polymer type PP temperature is very brittle when it is higher than 0C, many commercial PP materials are random copolymers with 1~4% ethylene or more. A clamp copolymer of high ratio of ethylene content.
The copolymer types PP material has a low heat distortion temperature (100C), low transparency, low gloss, low rigidity, but have stronger impact strength. The strength of PP increases as the ethylene content increases. The Vicat softening temperature of PP is 150C. Due to the high degree of crystallinity, the luggage made of this material have excellent surface rigidity and scratch resistance.
Luggage Trolley Bags,Pp Luggage Trolley Bags,Pp Luggage,Pp Suitcase
China Amulite Sunrising Luggage &Bag Products Group , https://www.chinabluesunrising.com