Doping of carbon ﬁber into polybenzimidazole matrix and mechanical properties of structural carbon ﬁber-doped polybenzimidazole composites

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 固体润滑国家重点实验室

	Doping of carbon ﬁber into polybenzimidazole matrix and mechanical properties of structural carbon ﬁber-doped polybenzimidazole composites
	Chen JM(陈建敏); Chen JM(陈建敏); Cui HX(崔海霞); Zhou HD(周惠娣)
刊名	Composites Science and Technology
	2008
卷号	68 页码:3278-3284
关键词	Polymer-matrix composites (PMCs) Carbon ﬁber Structural composites Mechanical properties Sintering
ISSN号	0266-3538
通讯作者	陈建敏
中文摘要	Carbon fibers (CF) were oxidized and reduced to introduce AOH, ACOOH, and ANH2, on which polybenzimidazole (PBI) was in situ polymerized. The CF reinforced PBI composites (CF/PBI) were characterized by 1H 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 ACOOH, CAOH, and ANO2 could be introduced onto the surfaces of the CF using H2O2 and H2SO4/HNO3 as the oxidizing agents, while the ANO2 on the surface of the CF could be reduced to ANH2 by SnCl2 2H2O/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.
学科主题	材料科学与物理化学
收录类别	SCI
资助信息	the National Natural Science Foundation of China (Grant No. 50575217);the program of ‘‘973” (Grant No. 20070B607601);the Innovative Group Foundation from NSFC (Grant No. 50421502)
语种	英语
公开日期	2013-03-28
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/2593]
专题	兰州化学物理研究所_固体润滑国家重点实验室兰州化学物理研究所_先进润滑与防护材料研究发展中心
通讯作者	Chen JM(陈建敏); Chen JM(陈建敏)
推荐引用方式 GB/T 7714	Chen JM,Chen JM,Cui HX,et al. Doping of carbon ﬁber into polybenzimidazole matrix and mechanical properties of structural carbon ﬁber-doped polybenzimidazole composites[J]. Composites Science and Technology,2008,68:3278-3284.
APA	陈建敏,陈建敏,崔海霞,&周惠娣.(2008).Doping of carbon ﬁber into polybenzimidazole matrix and mechanical properties of structural carbon ﬁber-doped polybenzimidazole composites.Composites Science and Technology,68,3278-3284.
MLA	陈建敏,et al."Doping of carbon ﬁber into polybenzimidazole matrix and mechanical properties of structural carbon ﬁber-doped polybenzimidazole composites".Composites Science and Technology 68(2008):3278-3284.