不同类型电离辐射对聚醚聚氨酯材料的辐射效应  

Radiation Effect of Polyether-Urethane Under Action of Different Ionizing Radiation

作　　者：黄玮[1] 陈晓军[1] 高小铃[1] 许云书[1] 傅依备[1] 

机构地区：[1]中国工程物理研究院核物理与化学研究所,四川绵阳621900

出　　处：《原子能科学技术》2006年第6期677-681,共5页Atomic Energy Science and Technology

基　　金：国家自然科学基金;中国工程物理研究院基金联合资助项目(10576029)

摘　　要：本工作涉及聚醚聚氨酯材料经γ射线和电子束两种电离辐射辐照后的辐射效心研究。采用气相色谱、差示扫描量热分析和电子自旋共振技术,研究经不同类型电离辐射辐照后材料的热性能和自由基强度的变化及其辐解气体产物的种类和G值。结果表明,γ射线和电子束辐照聚醚聚氨酯材料时,二者对材料的作用机理虽相同,但能量淀积方式却不同,从而导致自由基数量和强度有所不同,材料的热性能和辐解气体小分子也存在差异。The research concerns in the radiation effect of γ-ray and electron beam on polyether urethane. The thermal property and radical intensity were determined bydifferential thermal gravimetric analysis and electron spin resonance. The composition and content of gas products from samples irradiated by different ionizing radiation were analyzed by gas chromatography. The action mechanisms of these two radiation resources of γ-ray and electron beam are same, but the means of energy deposit is different. It results in the differences of radical intensity and the thermal property of polyetherurethane as well as its gas products from the radiation decomposition.

关 键 词：Γ射线辐照 电子束辐照 聚醚聚氯酯 辐射效应 

分 类 号：O644.2[理学—物理化学] TQ316[理学—化学]