Electron-beam radiation effects on the structure and properties of polypropylene at low dose rates
Wang, HT; Jiang, HQ; Shen, RF; Ding, XJ; Zhang, C; Li, LF; Li, JY
2018
发表期刊NUCLEAR SCIENCE AND TECHNIQUES
ISSN1001-8042
卷号29期号:6页码:-
文章类型期刊论文
摘要While the high-energy radiation effects on polypropylene, which are crucial for the cable industry for nuclear power plants, have been thoroughly studied, the property changes of PP at low-dose-rate electron-beam irradiation are far from elucidated. Herein, the influence of electron-beam irradiation on the structure and properties of PP was examined. The static EB irradiation conditions were 1.2 MeV at a low dose rate of 20 kGy/h to achieve absorbed doses ranging from 45, to 60, 100, and 200 kGy. The molecular structure was first evaluated by measuring the carboxyl index and the relative radical concentrations via Fourier transform infrared spectroscopy and electron spin resonance, respectively. Mechanical, differential scanning colorimetric, and rheological tests were carried out to further investigate the changes in the properties (tensile, crystalizing, and viscoelastic properties) of irradiated PP, which showed good agreement with the structural analysis results. We found that radio-oxidative degradation (chain scission) was predominant, which can be due to the low dose rate facilitating oxygen diffusion into the PP matrix during electron-beam irradiation.
关键词Low-density Polyethylene Isotactic Polypropylene Mechanical-properties Ionizing-radiation Irradiated Polypropylene Packaging Materials Gamma-irradiation Syringes Degradation Monolayer
DOI10.1007/s41365-018-0424-y
收录类别SCI
语种英语
WOS记录号WOS:000433263900011
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28996
专题中科院上海应用物理研究所2011-2018年
作者单位1.Wang, HT
2.Jiang, HQ
3.Shen, RF
4.Ding, XJ
5.Zhang, C
6.Li, LF
7.Li, JY
推荐引用方式
GB/T 7714
Wang, HT,Jiang, HQ,Shen, RF,et al. Electron-beam radiation effects on the structure and properties of polypropylene at low dose rates[J]. NUCLEAR SCIENCE AND TECHNIQUES,2018,29(6):-.
APA Wang, HT.,Jiang, HQ.,Shen, RF.,Ding, XJ.,Zhang, C.,...&Li, JY.(2018).Electron-beam radiation effects on the structure and properties of polypropylene at low dose rates.NUCLEAR SCIENCE AND TECHNIQUES,29(6),-.
MLA Wang, HT,et al."Electron-beam radiation effects on the structure and properties of polypropylene at low dose rates".NUCLEAR SCIENCE AND TECHNIQUES 29.6(2018):-.
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