Crystallization behavior of poly(ethylene terephthalate)/multiwalled carbon nanotubes composites

doi:10.1002/app.28048

CORC > 化学研究所 > 中国科学院化学研究所

	Crystallization behavior of poly(ethylene terephthalate)/multiwalled carbon nanotubes composites
	Hu, Guangjun 1,2; Feng, Xiyan 1,2; Zhang, Shimin 1; Yang, Mingshu 1
刊名	JOURNAL OF APPLIED POLYMER SCIENCE
	2008-06-15
卷号	108 期号:6 页码:4080-4089
关键词	Carbon Nanotubes Polyesters Crystallization Differential Scanning Calorimetry (Dsc) Nucleation
ISSN号	0021-8995
DOI	10.1002/app.28048
英文摘要	Crystallization behavior of poly(ethylene terephthalate)/multiwalled carbon nanotubes (PET/MWNTs) composites have been investigated under isothermal conditions and in comparison with the conventional nucleating agents, sodium benzoate, and micrometric carbon/glass fibers. In the PET/MWNTs composites, MWNTs promote the crystallization of PET as a heterogeneous nucleating agent, and the nucleation efficiency is greatly enhanced when MWNTs was homogeneously dispersed in PET matrix. In comparison with pure PET, spherulites size of PET/ MWNTs composites is significantly reduced, and the shape becomes quite irregular. TEM images indicate that MWNTs bundles locate in the center of spherulites of PET and act as nuclei. Fold surface free energy during nucleation process for MWNTs nucleated PET is just half of pure PET, suggesting that MWNTs are efficient nucleating agents for PET. The sequence of nucleating ability of is given as follows: sodium benzoate>MWNTs>talc>carbon fibers glass fibers. The nucleation in the presence of sodium benzoate is a chemical nucleation process that may cause severe degradation of PET, but MWNTs nucleate PET through "particle effect," which does not affect the molecular weight of PET. (C) 2008 Wiley Periodicals, Inc.
语种	英语
出版者	JOHN WILEY & SONS INC
WOS记录号	WOS:000255339200080
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/64563]
专题	中国科学院化学研究所
通讯作者	Yang, Mingshu
作者单位	1.Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, Key Lab Engn Plast,BNLMS, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Hu, Guangjun,Feng, Xiyan,Zhang, Shimin,et al. Crystallization behavior of poly(ethylene terephthalate)/multiwalled carbon nanotubes composites[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2008,108(6):4080-4089.
APA	Hu, Guangjun,Feng, Xiyan,Zhang, Shimin,&Yang, Mingshu.(2008).Crystallization behavior of poly(ethylene terephthalate)/multiwalled carbon nanotubes composites.JOURNAL OF APPLIED POLYMER SCIENCE,108(6),4080-4089.
MLA	Hu, Guangjun,et al."Crystallization behavior of poly(ethylene terephthalate)/multiwalled carbon nanotubes composites".JOURNAL OF APPLIED POLYMER SCIENCE 108.6(2008):4080-4089.