超声氧化处理对碳纤维表面性能的影响
Influence of Ultrasonic Oxidation on Surface Properties of Carbon Fibers
摘 要
为提高碳纤维与树脂基体的结合性能, 通过超声氧化处理对碳纤维进行了表面改性; 用扫描电镜、激光拉曼光谱仪对处理前后的碳纤维表面形貌、结构等进行了分析, 并对碳纤维的浸润性及其与树脂基体间的结合性能进行了研究。结果表明: 超声氧化处理后, 碳纤维表面产生了更多的沟槽, 且其石墨化程度有了一定提高; 处理后碳纤维表面酸性官能团含量随处理时间的延长而增多, 其与水的浸润性明显提高; 与未处理的相比, 处理后的碳纤维与环氧扫描基体的界面剪切强度提高了33%。
超声氧化处理
接触角
界面剪切强度
carbon fiber
ultrasonic oxidation
contact angle
interface shear strength
Abstract
In order to improve the binding performance between carbon fibers and resin matrix, the surface of carbon fibers was modified by ultrasonic oxidation. Surface morphology and structure of the carbon fibers before and after treating were analyzed by means of scanning electron microscopy and laser Raman spectrometer. The wettability of the carbon fibers and the binding performance with the resin matrix were investigated. The results show that there were more grooves on the surface of carbon fibers after ultrasonic oxidation, and the graphitization degree had a certain improvement. With the prolongation of treatment time, the content of acid functional group on the surface of carbon fiber increased, and the wettability of the carbon fibers with water was improved significantly. Compared with carbon fibers before treating, the interface shear strength between treated carbon fibers and epoxy matrix increased by 33%.
中图分类号 TB332
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收稿日期 2010/11/19
修改稿日期 2011/10/9
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备注魏楠(1986-), 男, 山东济南人, 硕士研究生。
引用该论文: WEI Nan,WANG Jing-wen. Influence of Ultrasonic Oxidation on Surface Properties of Carbon Fibers[J]. Materials for mechancial engineering, 2011, 35(11): 28～31
魏楠,王经文. 超声氧化处理对碳纤维表面性能的影响[J]. 机械工程材料, 2011, 35(11): 28～31
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参考文献
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【9】SEVERINI F, FORMARO L, PEGORARO M,et al.Chemical modification of carbon fiber surfaces[J]. Carbon,2002,40(4):735-741.
【10】LI J, CHENG X H.Evaluation of tribological performance of surface-treated carbon fiber-reinforced thermoplastic polyimide composite[J]. Journal of Applied Polymer Science,2008,107(2):1147-1153.
【11】ZHOU X, LI Q, WU C.Grafting of maleic anhydride onto carbon black surface via ultrasonic irradiation[J]. Applied Organmetallic Chemistry,2008,22:78-81.
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【16】李峻青,黄玉东,王卓,等.γ射线辐照对碳纤维表面结构以及强度的影响[J]. 航空材料学报,2005,12(6):52-56.
【17】PARK S, KIM B.Roles of acidic functional groups of carbon fiber surfaces in enhancing interfacial adhesion behavior[J]. Material Science and Engineering,2005,408:269-273.
【18】XU Zhi-wei, LI Chen, HUANG Yu-dong,et al.Wettability of carbon fibers modified by acrylicacid and interface properties of carbon fiberepoxy[J]. European Polymer Jounral,2008,44:494-503.
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