CAS OpenIR  > 中科院上海应用物理研究所2011-2018年
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
Source PublicationNUCLEAR SCIENCE AND TECHNIQUES
ISSN1001-8042
Volume29Issue:6Pages:-
Subtype期刊论文
AbstractWhile 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.
KeywordLow-density Polyethylene Isotactic Polypropylene Mechanical-properties Ionizing-radiation Irradiated Polypropylene Packaging Materials Gamma-irradiation Syringes Degradation Monolayer
DOI10.1007/s41365-018-0424-y
Indexed BySCI
Language英语
WOS IDWOS:000433263900011
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/28996
Collection中科院上海应用物理研究所2011-2018年
Affiliation1.Wang, HT
2.Jiang, HQ
3.Shen, RF
4.Ding, XJ
5.Zhang, C
6.Li, LF
7.Li, JY
Recommended Citation
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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