Plastic bags manufacturers custom wholesale transparent OPP plastic bags

OPP plastic bags opp food bags of opp mainly have the following applications: Flame-retardant polyester DOP0 as raw material and itaconic acid reaction, the formation of intermediates ODOP-BDA, can be partially replaced by ethylene glycol, a new phosphorus-containing flame-retardant polyester. Studies have shown that when PET and PEN phosphorus content reached 0.75% and 0.5%, the polyester showed a good flame retardant effect. At present, the annual production of polyester in the world has reached more than 3000 million tons, if one of them is phosphorus-containing flame-retardant polyester, you need o-phenyl phenol 50000t / a or more

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