Effect of γ−irradiation on flame retardant ethylene–octene copolymers composites

HE Tao; JIANG Pingkai; JIA Shaojin; WANG Zhongguang

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Effect of γ−irradiation on flame retardant ethylene–octene copolymers composites

更新时间：2023-03-30

- Effect of γ−irradiation on flame retardant ethylene–octene copolymers composites
- Journal of Radiation Research and Radiation Processing Vol. 23, Issue 6, Pages: 329-332(2005)
- 作者机构：
  
  1.上海交通大学化学化工学院　上海　200240
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HE Tao, JIANG Pingkai, JIA Shaojin, et al. Effect of γ−irradiation on flame retardant ethylene–octene copolymers composites. [J]. Journal of Radiation Research and Radiation Processing 23(6):329-332(2005)
DOI：

HE Tao, JIANG Pingkai, JIA Shaojin, et al. Effect of γ−irradiation on flame retardant ethylene–octene copolymers composites. [J]. Journal of Radiation Research and Radiation Processing 23(6):329-332(2005) DOI：

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 elastomer，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。

Abstract

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

Keywords

γ−irradiationPolyolefin elastomerPOEAl (OH)3Mg (OH)2Red phosphorusFlammability

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Sichuan Institute of Nuclear Technology Application

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