Radiation effects on the foaming of atactic polypropylene with supercritical carbon dioxide
Yang, CG; Zhe, X; Zhang, MX; Wang, MH; Wu, GZ
2017
发表期刊RADIATION PHYSICS AND CHEMISTRY
ISSN0969-806X
卷号131页码:35-40
文章类型期刊论文
摘要Atactic polypropylene (PP) samples with melt flow indices (MFI) of 7.0 g/10 min were irradiated and then foamed with supercritical carbon dioxide (scCO(2)). A detailed investigation was carried out to understand the effect of radiation on the scCO(2) foaming of polypropylene. Variations in the molecular weight, branching degree, crystallinity, and melting and crystallization temperatures of irradiated PP were investigated. The cell diameter, cell density, volume expansion ratio and foaming rate were analyzed in detail under different conditions. It was found that the cell structure of PP foam became more uniform and the foaming temperature window increased to 10 degrees C. This compares favorably to the 4 degrees C observed with pristine atactic PP. The best cell morphology was observed at a dose of 30 kGy. The corresponding average diameter and cell density were 16.4 m and 5.7x10(7) cells/cm(3), respectively.
关键词Polypropylene Radiation Cross-linking Supercritical Carbon Dioxide Foaming
DOI10.1016/j.radphyschem.2016.10.018
收录类别SCI
语种英语
WOS记录号WOS:000390072000006
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/27427
专题中科院上海应用物理研究所2011-2018年
推荐引用方式
GB/T 7714
Yang, CG,Zhe, X,Zhang, MX,et al. Radiation effects on the foaming of atactic polypropylene with supercritical carbon dioxide[J]. RADIATION PHYSICS AND CHEMISTRY,2017,131:35-40.
APA Yang, CG,Zhe, X,Zhang, MX,Wang, MH,&Wu, GZ.(2017).Radiation effects on the foaming of atactic polypropylene with supercritical carbon dioxide.RADIATION PHYSICS AND CHEMISTRY,131,35-40.
MLA Yang, CG,et al."Radiation effects on the foaming of atactic polypropylene with supercritical carbon dioxide".RADIATION PHYSICS AND CHEMISTRY 131(2017):35-40.
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