| Effect of Electrochemical Treatment in Aqueous Ammonium Bicarbonate on Surface Properties of PAN-based Carbon Fibers |
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| 作者姓名： | 曹海琳 黄玉东 张志谦 孙举涛 |
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| 作者单位： | Dept.ofAppliedChemistry,FacultyofScience,HarbinInstituteofTechnology,Harbin150001,China |
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| 基金项目： | Sponsored by the Scientific Research Foundation of Harbin Institute of Technology(Grant No. HIT. 2003.57) |
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| 摘 要： | The surface properties of PAN-based carbon fibers electrochemically treated in aqueous ammonium bicarbonate before and after treatment were characterized by X-ray photoelectron spectroscopy ( XPS), atomic force microscopy (AFM) and Dynamic Contact Angle Analysis (DCAA). The results of characterization indicated that the oxygen and nitrogen contents in carbon fiber surface were significantly increased by electrochemical treatment, and amide groups was introduced onto it, which was related with the electrolyte. The AFM photographs illustrated that the roughness of the fiber surface was also increased. The wettibality of the fibers was improved after treatment because the surface energy especially the polar part of it was increased.
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| 关 键 词： | PAN基碳纤维 电化学处理 表面性质 水成重碳酸铵 动态触点角度控制 |
Effect of Electrochemical Treatment in Aqueous Ammonium Bicarbonate on Surface Properties of PAN-based Carbon Fibers |
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| CAO Hai-lin,HUANG Yu-dong,ZHANG Zhi-qian,SUN Ju-tao.Effect of Electrochemical Treatment in Aqueous Ammonium Bicarbonate on Surface Properties of PAN-based Carbon Fibers[J].Journal of Harbin Institute of Technology,2004,11(2):168-173. |
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| Authors: | CAO Hai-lin HUANG Yu-dong ZHANG Zhi-qian SUN Ju-tao |
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| Abstract: | The surface properties of PAN-based carbon fibers electrochemically treated in aqueous ammonium bicarbonate before and after treatment were characterized by X-ray photoelectron spectroscopy (XPS) , atomic force microscopy (AFM) and Dynamic Contact Angle Analysis (DCAA). The results of characterization indicated that the oxygen and nitrogen contents in carbon fiber surface were significantly increased by electrochemical treatment, and amide groups was introduced onto it, which was related with the electrolyte. The AFM photographs illustrated that the roughness of the fiber surface was also increased. The wettibality of the fibers was improved after treatment because the surface energy especially the polar part of it was increased. |
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| Keywords: | PAN-based carbon fiber electrochemical treatment surface properties aqueous ammonium bicarbonate |
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