| Doping of carbon fiber into polybenzimidazole matrix and mechanical properties of structural carbon fiber-doped polybenzimidazole composites | |
| Department | 固体润滑国家重点实验室 ; 先进润滑与防护材料研究发展中心 |
Lu YH(卢艳华); Chen JM(陈建敏) ; Cui HX(崔海霞); Zhou HD(周惠娣)
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| 2008 | |
| Source Publication | Composites Science and Technology
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| ISSN | 0266-3538 |
| Volume | 68Pages:3278-3284 |
| Abstract | 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. |
| Keyword | Polymer-matrix Composites (Pmcs) Carbon FIber Structural Composites Mechanical Properties Sintering |
| Subject Area | 材料科学与物理化学 |
| Funding Organization | 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) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 磨损和表面工程组 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/2593 |
| Collection | 固体润滑国家重点实验室（LSL） 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 |
| Corresponding Author | Chen JM(陈建敏) |
| Recommended Citation GB/T 7714 | Lu YH,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 | 卢艳华,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 | 卢艳华,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. |
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