| Surface Characteristics of Rare Earth Treated Carbon Fibers and Interfacial Properties of Composites |
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| 作者姓名： | 徐志伟 黄玉东 宋元军 张春华 刘丽 |
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| 作者单位： | Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China （50333030） |
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| 摘 要： | Effect of rare earth treatment on surface physicochemical properties of carbon fibers and interfacial properties of carbon fiber/epoxy composites was investigated, and the interfacial adhesion mechanism of treated carbon fiber/epoxy composite was analyzed. It was found that rare earth treatment led to an increase of fiber surface roughness, improvement of oxygeaa-containing groups, and introduction of rare earth element on the carbon fiber surface. As a result, coordination linkages between fibers and rare earth, and between rare earth and resin matrix were formed separately, thereby the interlaminar shear strength （ILSS） of composites increased, which indicated the improvement of the interfacial adhesion between fibers and matrix resin resulting from the increase of carboxyl and carbonyl.
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| 关 键 词： | 碳纤维 非金属合成材料 光谱学 稀土 |
| 文章编号： | 1002-0721（2007）04-0462-07 |
| 收稿时间： | 26 October 2006 |
| 修稿时间： | 2006-10-26 |
Surface Characteristics of Rare Earth Treated Carbon Fibers and Interfacial Properties of Composites |
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| Xu Zhiwei,Huang Yudong,Song Yuanjun,Zhang Chunhua,Liu Li.Surface Characteristics of Rare Earth Treated Carbon Fibers and Interfacial Properties of Composites[J].Journal of Rare Earths,2007,25(4):462-468. |
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| Authors: | Xu Zhiwei Huang Yudong Song Yuanjun Zhang Chunhua Liu Li |
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| Affiliation: | Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | Effect of rare earth treatment on surface physicochemical properties of carbon fibers and interfacial properties of carbon fiber/epoxy composites was investigated, and the interfacial adhesion mechanism of treated carbon fiber/epoxy composite was analyzed. It was found that rare earth treatment led to an increase of fiber surface roughness, improvement of oxygen-containing groups, and introduction of rare earth element on the carbon fiber surface. As a result, coordination linkages between fibers and rare earth, and between rare earth and resin matrix were formed separately, thereby the interlaminar shear strength (ILSS) of composites increased, which indicated the improvement of the interfacial adhesion between fibers and matrix resin resulting from the increase of carboxyl and carbonyl. |
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| Keywords: | carbon fiber/epoxy composite interfacial properties X-ray photoelectron spectroscopy rare earths |
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