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Supercritical CO2 foaming of radiation crosslinked polypropylene/high-density polyethylene blend: Cell structure and tensile property
Yang, CG; Xing, Z; Zhang, MX; Zhao, Q; Wang, MH; Wu, GZ
2017
Source PublicationRADIATION PHYSICS AND CHEMISTRY
ISSN0969-806X
Volume141Issue:-Pages:276-283
Subtype期刊论文
AbstractA blend of isotactic polypropylene (PP) with high-density polyethylene (HDPE) in different PP/HDPE ratios was irradiated by gamma-ray to induce cross-linking and then foamed using supercritical carbon dioxide (scCO(2)) as a blowing agent. Radiation effect on the melting point and crystallinity were analyzed in detail. The average cell diameter and cell density were compared for PP/HDPE foams prepared under different conditions. The optimum absorbed dose for the scCO(2) foaming of PP/HDPE in terms of foaming ability and cell structure was 20 kGy. Tensile measurements showed that the elongation at break and tensile strength at break of the crosslinked PP/HDPE foams were higher than the non-crosslinked ones. Of particular interest was the increase in the foaming temperature window from 4 degrees C for pristine PP to 8-12 degrees C for the radiation crosslinked PP/HDPE blends. This implies much easier handling of scCO(2) foaming of crosslinked PP with the addition of HDPE.
KeywordCarbon-dioxide Isotactic Polypropylene Crystallization Polyolefins Irradiation Performance Nucleation Scaffolds Hydrogen Linking
DOI10.1016/j.radphyschem.2017.07.028
WOS KeywordCARBON-DIOXIDE ; ISOTACTIC POLYPROPYLENE ; CRYSTALLIZATION ; POLYOLEFINS ; IRRADIATION ; PERFORMANCE ; NUCLEATION ; SCAFFOLDS ; HYDROGEN ; LINKING
Indexed BySCI
Language英语
WOS IDWOS:000412607700043
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/28837
Collection中科院上海应用物理研究所2011-2018年
Recommended Citation
GB/T 7714
Yang, CG,Xing, Z,Zhang, MX,et al. Supercritical CO2 foaming of radiation crosslinked polypropylene/high-density polyethylene blend: Cell structure and tensile property[J]. RADIATION PHYSICS AND CHEMISTRY,2017,141(-):276-283.
APA Yang, CG,Xing, Z,Zhang, MX,Zhao, Q,Wang, MH,&Wu, GZ.(2017).Supercritical CO2 foaming of radiation crosslinked polypropylene/high-density polyethylene blend: Cell structure and tensile property.RADIATION PHYSICS AND CHEMISTRY,141(-),276-283.
MLA Yang, CG,et al."Supercritical CO2 foaming of radiation crosslinked polypropylene/high-density polyethylene blend: Cell structure and tensile property".RADIATION PHYSICS AND CHEMISTRY 141.-(2017):276-283.
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