Investigation into the toughening mechanism of epoxy reinforced with multi-wall carbon nanotubes

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	Investigation into the toughening mechanism of epoxy reinforced with multi-wall carbon nanotubes
	Li, Xiaoyan 1; Zhang, Wenjing 2; Zhai, Shiwei 3; Tang, Shawei 1; Zhou, Xiaoqin 1; Yu, Dengguang 1; Wang, Xia 1
刊名	E-POLYMERS
	2015-09-01
卷号	15 期号:5 页码:335-343
关键词	carbon nanotubes epoxy fracture toughness mechanism nanostructures
英文摘要	This study reports the reinforcement and fracture toughening mechanism of pristine multi-walled carbon nanotubes (MWCNTs) on epoxy matrix. The tensile strength and fracture energy (G(IC)) of the epoxy polymer increased simultaneously upon the addition of a small amount of MWCNTs. The fracture surfaces of single-edgenotch three-point bending test specimens were analysed by scanning electron microscopy, and the double-notch four-point bending technique was used to investigate the fracture process by transmission electron microscopy, respectively. MWCNT pull-out and subsequent plastic void growth were found; meanwhile, fracture of MWCNTs was observed along the crack propagation path. The theoretical model of shearing band initiated by the stress concentrations around the MWCNTs is the dominant toughening mechanism. While the crack bridging of MWCNTs and the plastic void growth of epoxy also have a toughening effect.
收录类别	SCI
语种	英语
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/28917]
专题	化学研究所_其它
作者单位	1.Univ Shanghai Sci & Technol, Sch Mat Sci & Engn, Shanghai 200093, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China 3.Univ Shanghai Sci & Technol, Sch Mech Engn, Shanghai, Peoples R China
推荐引用方式 GB/T 7714	Li, Xiaoyan,Zhang, Wenjing,Zhai, Shiwei,et al. Investigation into the toughening mechanism of epoxy reinforced with multi-wall carbon nanotubes[J]. E-POLYMERS,2015,15(5):335-343.
APA	Li, Xiaoyan.,Zhang, Wenjing.,Zhai, Shiwei.,Tang, Shawei.,Zhou, Xiaoqin.,...&Wang, Xia.(2015).Investigation into the toughening mechanism of epoxy reinforced with multi-wall carbon nanotubes.E-POLYMERS,15(5),335-343.
MLA	Li, Xiaoyan,et al."Investigation into the toughening mechanism of epoxy reinforced with multi-wall carbon nanotubes".E-POLYMERS 15.5(2015):335-343.