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	Doping of carbon fiber into polybenzimidazole matrix and mechanical properties of structural carbon fiber-doped polybenzimidazole composites
	Lu, Yanhua1,2; Chen, Jianmin2; Cui, Haixia1; Zhou, Huidi2
刊名	Composites science and technology
	2008-12-01
卷号	68期号:15-16页码:3278-3284
关键词	Polymer-matrix composites (pmcs) Carbon fiber Structural composites Mechanical properties Sintering
ISSN号	0266-3538
DOI	10.1016/j.compscitech.2008.08.014
通讯作者	Chen, jianmin(chenjm@lzb.ac.cn)
英文摘要	Carbon fibers (cf) were oxidized and reduced to introduce -oh, -cooh, and -nh(2), on which polybenzimidazole (pbi) was in situ polymerized. the cf reinforced pbi composites (cf/pbi) were characterized by (1)h nuclear magnetic resonance spectroscopy and thermal gravimetric analysis. the effect of oxidation and/or reduction of the cf on the chemical states of typical elements such as c, n, and o were investigated by means of x-ray photoelectron spectroscopy. the pbi and cf/pbi powders were hot-press sintered in a vacuum oven to generate structural samples, and the mechanical properties of the structural samples were evaluated using a mechanical properties testing machine. besides, a scanning electron microscope was used to observe the microscopic features of the structural samples. it was found that -cooh, c-oh, and -no(2) could be introduced onto the surfaces of the cf using h(2)o(2) and h(2)so(4)/hno(3) as the oxidizing agents, while the -no(2) on the surface of the cif could be reduced to -nh(2) by sncl(2).2h(2)o/hcl. this would make it feasible for pbi to be grafted to the surface of cf via in situ polymerization. hence the mechanical properties of the structural cf/pbi were significantly improved. (c) 2008 elsevier ltd. all rights reserved.
WOS关键词	INTERFACIAL ADHESION ; EPOXY COMPOSITES ; CHEMICAL MODIFICATION ; POLYMER COMPOSITES ; SURFACE TREATMENTS ; ENHANCEMENT ; BLENDS
WOS研究方向	Materials Science
WOS类目	Materials Science, Composites
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000261670400031
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2391501
专题	中国科学院大学
通讯作者	Chen, Jianmin
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Lu, Yanhua,Chen, Jianmin,Cui, Haixia,et al. Doping of carbon fiber into polybenzimidazole matrix and mechanical properties of structural carbon fiber-doped polybenzimidazole composites[J]. Composites science and technology,2008,68(15-16):3278-3284.
APA	Lu, Yanhua,Chen, Jianmin,Cui, Haixia,&Zhou, Huidi.(2008).Doping of carbon fiber into polybenzimidazole matrix and mechanical properties of structural carbon fiber-doped polybenzimidazole composites.Composites science and technology,68(15-16),3278-3284.
MLA	Lu, Yanhua,et al."Doping of carbon fiber into polybenzimidazole matrix and mechanical properties of structural carbon fiber-doped polybenzimidazole composites".Composites science and technology 68.15-16(2008):3278-3284.

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