| 纳米氮化硅粉粒的表面改性研究 |
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| 引用本文： | 王 君,徐国财,吉小利,龚荣进.纳米氮化硅粉粒的表面改性研究[J].无机化学学报,2003,19(9):967-970. |
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| 作者姓名： | 王 君 徐国财 吉小利 龚荣进 |
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| 作者单位： | 安徽理工大学化学工程系,淮南,232001 |
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| 基金项目： | 淮南市科技基金资助项目(No.200201)。 |
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| 摘 要： | 纳米氮化硅具有很高的化学稳定性、耐高温性能、良好的机械性能及优异的介电性能(高介电常数、高介电强度)犤9犦,在许多领域有着广泛的应用。作为一种重要的陶瓷材料,目前对它的表面改性大多是采用烧结助剂包覆氮化硅粉粒,提高烧结助剂在氮化硅浆料中的分散程度及浆料的流动性,
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| 关 键 词： | 纳米氮化硅 表面改性 偶联剂 分散性 稳定性 |
| 修稿时间： | 2003年2月15日 |
Surface Modification of Nano-silicon Nitride Powder |
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| WANG Jun,XU Guo-Cai,JI Xiao-Li and GONG Rong-Jing.Surface Modification of Nano-silicon Nitride Powder[J].Chinese Journal of Inorganic Chemistry,2003,19(9):967-970. |
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| Authors: | WANG Jun XU Guo-Cai JI Xiao-Li and GONG Rong-Jing |
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| Institution: | Chemical Engineering Dept., Anhui University of Science and Technology, Huainan 232001,Chemical Engineering Dept., Anhui University of Science and Technology, Huainan 232001,Chemical Engineering Dept., Anhui University of Science and Technology, Huainan 232001 and Huainan Science Bureau, Huainan 232001 |
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| Abstract: | An available surface modification process of nano-Si3N4 was given using KH-560 as modifying agent and ace-tone as dispersion medium. Nano-Si3N4 suspension was of the greatest stability when the nano-Si3N4 powder was modified with proper amount of KH-560, which was 1%(wt) of the amount of nano-Si3N4 powder. Elements of C, O and Si were detected on the surface of the modified nano-Si3N4 powder by means of XPS. The TEM of the sus-pension showed that the average particle size of nano-Si3N4 became smaller and dispersibility of nano-Si3N4 was improved in the medium of acetone when the nano-Si3N4 powder was modified with proper amount of KH-560. The results obtained showed that KH-560 had been bound on the surface of nano-Si3N4 particles. |
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| Keywords: | nano-Si3N4 surface modification coupling agent dispersibility stability |
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