Supercritical CO2 Foaming of Radiation Cross-Linked Isotactic Polypropylene in the Presence of TAIC
Yang, CG; Wang, MH; Zhang, MX; Li, XH; Wang, HL; Xing, Z; Ye, LF; Wu, GZ; Wu, GZ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Jialuo Rd 2019, Shanghai 201800, Peoples R China.; Wu, GZ (reprint author), ShanghaiTech Univ, Sch Phys Sci & Technol, Haike Rd 100, Shanghai 201210, Peoples R China.
2016
发表期刊MOLECULES
ISSN1420-3049
卷号21期号:12页码:-
文章类型期刊论文
摘要Since the maximum foaming temperature window is only about 4 degrees C for supercritical CO2 (scCO(2)) foaming of pristine polypropylene, it is important to raise the melt strength of polypropylene in order to more easily achieve scCO(2) foaming. In this work, radiation cross-linked isotactic polypropylene, assisted by the addition of a polyfunctional monomer (triallylisocyanurate, TAIC), was employed in the scCO(2) foaming process in order to understand the benefits of radiation cross-linking. Due to significantly enhanced melt strength and the decreased degree of crystallinity caused by cross-linking, the scCO(2) foaming behavior of polypropylene was dramatically changed. The cell size distribution, cell diameter, cell density, volume expansion ratio, and foaming rate of radiation-cross-linked polypropylene under different foaming conditions were analyzed and compared. It was found that radiation cross-linking favors the foamability and formation of well-defined cell structures. The optimal absorbed dose with the addition of 2 wt % TAIC was 30 kGy. Additionally, the foaming temperature window was expanded to about 8 degrees C, making the handling of scCO(2) foaming of isotactic polypropylene much easier.
关键词Polypropylene Taic Radiation Cross-linking Supercritical Carbon Dioxide Foaming
DOI10.3390/molecules21121660
收录类别SCI
语种英语
WOS记录号WOS:000392140100054
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/26639
专题中科院上海应用物理研究所2011-2018年
通讯作者Wu, GZ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Jialuo Rd 2019, Shanghai 201800, Peoples R China.; Wu, GZ (reprint author), ShanghaiTech Univ, Sch Phys Sci & Technol, Haike Rd 100, Shanghai 201210, Peoples R China.
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GB/T 7714
Yang, CG,Wang, MH,Zhang, MX,et al. Supercritical CO2 Foaming of Radiation Cross-Linked Isotactic Polypropylene in the Presence of TAIC[J]. MOLECULES,2016,21(12):-.
APA Yang, CG.,Wang, MH.,Zhang, MX.,Li, XH.,Wang, HL.,...&Wu, GZ .(2016).Supercritical CO2 Foaming of Radiation Cross-Linked Isotactic Polypropylene in the Presence of TAIC.MOLECULES,21(12),-.
MLA Yang, CG,et al."Supercritical CO2 Foaming of Radiation Cross-Linked Isotactic Polypropylene in the Presence of TAIC".MOLECULES 21.12(2016):-.
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