Supercritical CO2 Foaming of Radiation Cross-Linked Isotactic Polypropylene in the Presence of TAIC

doi:10.3390/molecules21121660

	Supercritical CO2 Foaming of Radiation Cross-Linked Isotactic Polypropylene in the Presence of TAIC
	Yang, Chen-Guang1,2,3 ; Wang, Mou-Hua 1; Zhang, Ming-Xing 1; Li, Xiao-Hu 1; Wang, Hong-Long 1; Xing, Zhe 1; Ye, Lin-Feng 1; Wu, Guo-Zhong1,3
	2016-12
发表期刊	MOLECULES
ISSN	1420-3049
卷号	21 期号:12
发表状态	已发表
DOI	10.3390/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).