Direct measurement of grafting strength between an individual carbon   nanotube and a carbon fiber

doi:10.1016/j.carbon.2012.03.053

CORC > 北京大学 > 工学院

	Direct measurement of grafting strength between an individual carbon nanotube and a carbon fiber
	He, Xiaodong ; Wang, Chao ; Tong, Liyong ; Wang, Rongguo ; Cao, Anyuan ; Peng, Qingyu ; Moody, Steven ; Li, Yibin
刊名	炭素
	2012
关键词	HIERARCHICAL COMPOSITES INTERFACIAL STRENGTH REINFORCEMENT BIOLOGY GROWTH
DOI	10.1016/j.carbon.2012.03.053
英文摘要	Hierarchical structures consisting of carbon nanotubes (CNTs) grafted onto a carbon fiber (CF) have the potential to improve the performance of fiber/polymer composites. The strength between a CNT and a CF is a key factor that influences the load-transfer behavior and inter-laminar properties. Here, we directly measured the grafting strength of a chemically bonded CNT-CF hierarchical structure by detaching individual CNT from the CF substrate and simultaneously recording the force-displacement characteristics in a scanning electron microscopy equipped with a nano-manipulator. We observed a relatively wide distribution of the maximum forces at complete detachment for different grafted CNTs, which ranges from below the van der Waals (vdW) force existing at the CNT-CF interface up to 7 times higher than that. For a typical configuration where a CNT is partially anchored on a CF, we obtained grafting strengths in the range of 5-90 MPa, which are dominated by the vdW force as well as other factors such as chemical bonding. Our results, based on the measurements at individual nanostructure level, might be useful for designing and fabrication of high performance hierarchical composites. (C) 2012 Elsevier Ltd. All rights reserved.; Chemistry, Physical; Materials Science, Multidisciplinary; SCI(E); EI; 0; ARTICLE; 10; 3782-3788; 50
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/232329]
专题	工学院
推荐引用方式 GB/T 7714	He, Xiaodong,Wang, Chao,Tong, Liyong,et al. Direct measurement of grafting strength between an individual carbon nanotube and a carbon fiber[J]. 炭素,2012.
APA	He, Xiaodong.,Wang, Chao.,Tong, Liyong.,Wang, Rongguo.,Cao, Anyuan.,...&Li, Yibin.(2012).Direct measurement of grafting strength between an individual carbon nanotube and a carbon fiber.炭素.
MLA	He, Xiaodong,et al."Direct measurement of grafting strength between an individual carbon nanotube and a carbon fiber".炭素 (2012).