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以聚乙烯为基础 ,尝试通过等离子体接枝方法接枝甲基丙烯酸以达到聚合物阻燃的目的 .接枝后样品的点燃时间明显延长、极限氧指数明显提高、成炭量明显增加 ,说明接枝后的侧基 (- COOH、- COO- Na+ 和 - COO- K+ )在热降解过程中不仅自身参与成炭 ,而且强有力地促进了基体聚合物的成炭过程 .
Based on polyethylene, attempts to grafting methacrylic acid by plasma grafting method in order to achieve the purpose of flame retardant polymer.The ignition time of grafted samples was significantly prolonged, the limit oxygen index increased significantly, the amount of carbon increased significantly, indicating The grafted side groups (- COOH, - COO - Na + and - COO - K +) not only participate in carbon formation during thermal degradation, but also strongly promote the carbonization of the matrix polymer.