| 聚甲基丙烯酸甲酯/纳米有机改性蒙脱土复合材料的制备及其摩擦磨损性能研究 |
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| 引用本文： | 陈奎,杨瑞成,张天云.聚甲基丙烯酸甲酯/纳米有机改性蒙脱土复合材料的制备及其摩擦磨损性能研究[J].摩擦学学报,2007,27(2):187-191. |
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| 作者姓名： | 陈奎 杨瑞成 张天云 |
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| 作者单位： | 1. 兰州理工大学,甘肃省有色金属新材料省部共建国家重点实验室,甘肃,兰州,730050;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,甘肃,兰州,730000
2. 兰州理工大学,甘肃省有色金属新材料省部共建国家重点实验室,甘肃,兰州,730050;兰州城市学院,信息网络中心,甘肃,兰州,730050 |
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| 摘 要： | 采用乳液插层法制备聚甲基丙烯酸甲酯/纳米有机改性蒙脱土复合材料,采用X射线衍射仪表征复合材料结构,考察有机改性蒙脱土(OMMT)含量对复合材料摩擦磨损性能的影响,并通过扫描电子显微镜观察分析复合材料磨损表面形貌.结果表明:所制备的纳米片状分散型复合材料的磨损率随OMMT含量增加先减小而后增加;摩擦系数随OMMT含量的变化趋势则相反,当OMMT含量为5%时,复合材料的磨损率最小,为PMMA的25%;当OMMT含量为6%时,摩擦系数最大,比PMMA增加8%.复合材料的磨损机制为粘着磨损和磨粒磨损,随着OMMT含量不同,2种机理的表现程度有所变化.
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| 关 键 词： | 聚甲基丙烯酸甲酯 蒙脱土 复合材料 摩擦磨损性能 |
| 文章编号： | 1004-0595（2007）02-0187-05 |
| 修稿时间： | 2006-04-27 |
Preparation and Friction and Wear Behavior of PMMA/OMMT Composites |
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| CHEN Kui,YANG Rui-cheng,ZHANG Tian-yun.Preparation and Friction and Wear Behavior of PMMA/OMMT Composites[J].Tribology,2007,27(2):187-191. |
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| Authors: | CHEN Kui YANG Rui-cheng ZHANG Tian-yun |
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| Institution: | 1. State Key Laboratory of C, ansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China; 2. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China; 3. Center of Information and Network, City University of Lanzhou, Lanzhou 730070, China |
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| Abstract: | Composites of poly(methyl methacrylate)(PMMA) filled with organic montmorillonite(OMMT) were prepared by emulsion intercalation polymerization.The phase structures of the prepared composites were characterized by means of X-ray diffraction.The friction and wear behavior of the composites sliding against GCr15 steel at 150 N was examined on M-2000 text rig in a ring-on-block configuration.The worn surfaces of the composites were examined with a scanning electron microscopy.The composites containing 5% OMMT showed wear much better wear resistance than that of the PMMA matrix,while the friction coefficient increased slightly.The examination of the worn surfaces revealed that abrasive wear changed with the variation of OMMT content were the dominate wear mechanisms in PMMA. |
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| Keywords: | poly(methyl methacrylate) montmorillonite composites friction and wear behavior |
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