... P-N collaboration effect because of high phosphorus and nitrogen content, so it has excellent fire ... polarity. It becomes the most important and widely used acid and gas stuff in chemistry expansive system ... in EVA, PE, POE, PP, PVC, PET and rubber2,Applied in advanced expansive fireproofing dope.3,Applied ... in fiber material(paper, wood, fireproofing fabric and so on) 4,Applied in synthetic fiber ...