γ辐射对POE／MH／AH／P阻燃性能的影响  

Effect of γ-irradiation on flame retardant ethylene-octene copolymers composites

作　　者：何涛[1] 江平开[1] 贾少晋[1] 王宗光[1] 

机构地区：[1]上海交通大学化学化工学院,上海200240

出　　处：《辐射研究与辐射工艺学报》2005年第6期329-332,共4页Journal of Radiation Research and Radiation Processing

摘　　要：研究了γ辐射对填充氢氧化镁、氢氧化铝和红磷的聚烯烃弹性体(Polyolefin elascomer,POE)的阻燃 性能的影响。经γ射线辐照后,含磷阻燃体系的氧指数较不含磷的显著提高,并且在一定剂量内随着交联程 度的增加而增加;经扫描电子显微镜对燃烧后的成炭形貌观察,发现含红磷的体系交联后的炭层的致密程度 增加;经热重分析,表明阻燃体系辐射后的残炭量较辐射前的略高,同剂量下的含磷阻燃体系的残炭量要明 显高于不含磷的体系;同时力学性能一并得到了测试。A flammability study was made for the flame retardant composites EMA （POE / Mg （OH） 2 / Al （OH）3） and EMAP （POE/Mg （OH）2/Al （OH）3/P） before and after irradiation. Limiting oxygen index （LOI）, mechanical property, morphology of the char formed after combustion and thermal stability were investigated. By γ-irradiation, the LOI of EMAP increased markedly, but the LOI of EMA remained almost the same. And in the same absorbed dose, the LOI of EMAP was greater than EMA. The char structure of irradiated EMAP was more compact than before irradiation. The residue char of EMAP and EMA increased after irradiation.

关 键 词：Γ辐射 聚烯烃弹性体 氢氧化铝 氢氧化镁 红磷 阻燃 

分 类 号：TQ334.2[化学工程—橡胶工业] TQ327.8