研究了γ射线辐照对加有芘和受阻胺类化合物SEBS/PS共混物的力学性能以及电性能的影响.结果表明:芘和受阻胺类化合物的加入可以有效地改善SEBS/PS共混物的抗辐照性.随着抗辐照剂含量的增加,辐照后SEBS/PS共混物的拉伸强度、断裂伸长率以及体积电阻率的下降幅度越来越小.在高辐照剂量(1.0～2.0 MGy)下,芘和受阻胺类化合物共用时表现出了"拮抗作用",即混合抗辐照剂对SEBS/PS共混物的耐辐照效果比单一使用芘和受阻胺类化合物时差.研究结果还显示介质损耗可有效的评估SEBS/PS的降解情况.
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