| 石英基复合导电粉末的制备与应用 |
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| 引用本文： | 杨华明,谭定桥,陈德良,敖伟琴. 石英基复合导电粉末的制备与应用[J]. 中国粉体技术, 2002, 8(4): 13-15,18 |
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| 作者姓名： | 杨华明 谭定桥 陈德良 敖伟琴 |
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| 作者单位： | 1. 中南大学矿物工程系,湖南,长沙,410083
2. 云浮硫铁矿企业集团公司技术中心,广东,云浮,527343 |
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| 摘 要： | 传统的导电粉末存在性能不稳定、适用性差等问题。本文中以石英粉为基体 ,应用化学共沉淀技术 ,表面包覆掺杂的SnO2 制得了复合导电粉末。采用正交实验方法 ,确定了石英基复合导电粉末制备的最优化工艺条件 :水解pH值1.0 ,SnCl4·5H2 O/SbCl3 摩尔比 10∶1,SnCl4·5H2 O用量为2 0 % ,水解温度为 4 5℃ ,焙烧温度为 70 0℃。在该条件下 ,制得了平均粒径为 5 .7μm、电阻率为 2 5 3Ω·cm的复合导电粉末。用该导电粉末制得的导电涂料的体积电阻率仅为12 .6Ω·cm ,各项性能指标均达到国家标准
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| 关 键 词： | 超细石英粉 导电粉末 化学共沉淀 正交实验 |
| 文章编号： | 1008-5548(2002)04-0013-03 |
Preparation and Application of Composite Conductive Powder with Quartz Matrix |
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| YANG Hua ming ,TAN Ding qiao ,CHEN De liang ,AO Wei qin. Preparation and Application of Composite Conductive Powder with Quartz Matrix[J]. China Powder Science and Technology, 2002, 8(4): 13-15,18 |
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| Authors: | YANG Hua ming TAN Ding qiao CHEN De liang AO Wei qin |
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| Affiliation: | YANG Hua ming 1,TAN Ding qiao 2,CHEN De liang 1,AO Wei qin 1 |
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| Abstract: | Instability of property and bad applying ability exist for the traditional conductive powder.Composite conductive powder with impure SnO 2 is prepared by chemical coprecipitation technology using quartz as matrix material.The optimum processing parameters of preparing composite conductive powder with quartz matrix are determined by orthographic method:1.0 of pH value of hydrolysis solution,10∶1 of the molar ratio of SnCl 4·5H 2O to SbCl 3,20% of SnCl 4·5H 2O percentage,45 ℃ of hydrolysis temperature and 700 ℃ of calcination temperature.The conductive powder with 5.7 μm of average size and 253 Ω·cm of volumetric electric resistivity prepared under the optimum parameters can be used to produce conductive paint whose properties are better than that of the corresponding national standards with its electric resistivity of 12.6 Ω·cm. |
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| Keywords: | ultrafine quartz powder conductive powder chemical coprecipitation orthographic experiment |
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