... to separate result chemical , plastic anti-block agent, plastic additive So far, almost all of plastic film have to use ... used as film anti-adhesion agent of polythene, polypropylene, PVC, ethylene-propylene copolymer, polyester, etc. The mechanism is: to form uneven surface ... agent is a plastic bag / film the most commonly used additive materials industries, almost all of plastic bags / sheets, contain ...