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Polydimethylsiloxane rubber gamma radiation effect studies by positron annihilation lifetime spectroscopy
Sui, HL; Liu, XY; Zhong, FC; Li, XY; Wang, BY; Ju, X;王宝义
2014
发表期刊RADIATION EFFECTS AND DEFECTS IN SOLIDS
卷号169期号:7页码:628-635
摘要Polydimethylsiloxane rubber was irradiated at various radiation doses up to 800 kGy in air. The lifetime and intensity of the long component tau(3) were obtained by positron annihilation lifetime spectroscopy (PALS). The crystallization property and the molecular flexibility were estimated using the differential scanning calorimetry and dynamic thermomechanic analysis. Thermal volatile property was determined by thermogravimetry analysis. It was proved that the cross-linking reaction made the chain flexibility of the rubber to reduce gradually during gamma radiation, which resulted in the reduction of the o-Ps intensity observed by PALS. Although the degradation effect existed during gamma radiation, it was still less significant than the cross-linking effect when the radiation dose was up to 800 kGy.
关键词positron annihilation lifetime polydimethylsiloxane free volume
学科领域Nuclear Science & Technology; Physics
DOI10.1080/10420150.2014.912652
收录类别SCI
WOS记录号WOS:000340191500007
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225319
专题多学科研究中心
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Sui, HL,Liu, XY,Zhong, FC,et al. Polydimethylsiloxane rubber gamma radiation effect studies by positron annihilation lifetime spectroscopy[J]. RADIATION EFFECTS AND DEFECTS IN SOLIDS,2014,169(7):628-635.
APA Sui, HL,Liu, XY,Zhong, FC,Li, XY,Wang, BY,&Ju, X;王宝义.(2014).Polydimethylsiloxane rubber gamma radiation effect studies by positron annihilation lifetime spectroscopy.RADIATION EFFECTS AND DEFECTS IN SOLIDS,169(7),628-635.
MLA Sui, HL,et al."Polydimethylsiloxane rubber gamma radiation effect studies by positron annihilation lifetime spectroscopy".RADIATION EFFECTS AND DEFECTS IN SOLIDS 169.7(2014):628-635.
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