Supercritical CO2 Foaming of Radiation Cross-Linked Isotactic Polypropylene in the Presence of TAIC
2016-12
发表期刊MOLECULES
ISSN1420-3049
卷号21期号:12
发表状态已发表
DOI10.3390/molecules21121660
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
收录类别SCI
语种英语
资助项目National Natural Science Foundation of China[11079048]
WOS研究方向Biochemistry & Molecular Biology ; Chemistry
WOS类目Biochemistry & Molecular Biology ; Chemistry, Multidisciplinary
WOS记录号WOS:000392140100054
出版者MDPI AG
WOS关键词LOW-DENSITY POLYETHYLENE ; CARBON-DIOXIDE APPROACH ; MECHANICAL-PROPERTIES ; MORPHOLOGY ; POLYMERS ; CRYSTALLIZATION ; IRRADIATION ; BEHAVIORS ; PLASTICS ; LINKING
原始文献类型Article
引用统计
文献类型期刊论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/1610
专题物质科学与技术学院
物质科学与技术学院_特聘教授组_吴国忠组
物质科学与技术学院_硕士生
通讯作者Wu, Guo-Zhong
作者单位
1.Chinese Acad Sci, Shanghai Inst Appl Phys, Jialuo Rd 2019, Shanghai 201800, Peoples R China
2.Univ China Acad Sci, Beijing 100049, Peoples R China
3.ShanghaiTech Univ, Sch Phys Sci & Technol, Haike Rd 100, Shanghai 201210, Peoples R China
第一作者单位物质科学与技术学院
通讯作者单位物质科学与技术学院
推荐引用方式
GB/T 7714
Yang, Chen-Guang,Wang, Mou-Hua,Zhang, Ming-Xing,et al. Supercritical CO2 Foaming of Radiation Cross-Linked Isotactic Polypropylene in the Presence of TAIC[J]. MOLECULES,2016,21(12).
APA Yang, Chen-Guang.,Wang, Mou-Hua.,Zhang, Ming-Xing.,Li, Xiao-Hu.,Wang, Hong-Long.,...&Wu, Guo-Zhong.(2016).Supercritical CO2 Foaming of Radiation Cross-Linked Isotactic Polypropylene in the Presence of TAIC.MOLECULES,21(12).
MLA Yang, Chen-Guang,et al."Supercritical CO2 Foaming of Radiation Cross-Linked Isotactic Polypropylene in the Presence of TAIC".MOLECULES 21.12(2016).
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