| 稀土PMMA包裹硅铝氧烷凝胶的电流变效应 |
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| 引用本文： | 邱关明,张明,李幼荣,周兰香,严长浩.稀土PMMA包裹硅铝氧烷凝胶的电流变效应[J].中国稀土学报,2001,19(2):111-114. |
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| 作者姓名： | 邱关明 张明 李幼荣 周兰香 严长浩 |
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| 作者单位： | 1. 长春光学精密机械学院材料化工系,
2. 扬州大学化学化工系, |
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| 基金项目： | 江苏省国际科技合作项目
(BS2000722) |
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| 摘 要： | 用聚甲基丙烯酸甲酯（PMMA）对由水玻璃，硝酸铝和α－甲基丙烯酸形成的硅铝氧烷溶胶进行包裹，得到PMMA包裹的硅铝氧烷凝胶，同时在反应过程中用稀土离子进行掺杂，得到的稀土掺杂PMMA微囊粉末加入到甲基硅油中得到稳定的悬浮液，加载电场后发现其电流变效应显著提高，在一定浓度下与未掺杂体系相比即时粘度从95Pa.s提高到178Pas.s。
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| 关 键 词： | 稀土 水玻璃 聚甲基丙烯酸甲酯 包裹 硅铝氧烷凝胶 悬浮液 电流变效应 反杂 同囊粉末 电流变液 |
| 文章编号： | 1000－4343(2001)02－0111－04 |
| 修稿时间： | 2000年9月4日 |
ER Effect of PMMA Wrapped
Alumina-Siloxane Gel Doped with Rare Earths |
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| QIU Guan-ming,ZHANG Ming,LI You-rong,ZHOU Lan-xiang,YAN Chang-hao.ER Effect of PMMA Wrapped
Alumina-Siloxane Gel Doped with Rare Earths[J].Journal of the Chinese Rare Earth Society,2001,19(2):111-114. |
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| Authors: | QIU Guan-ming ZHANG Ming LI You-rong ZHOU Lan-xiang YAN Chang-hao |
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| Institution: | QIU Guan ming 1,ZHANG Ming 2,LI You rong 2,ZHOU Lan xiang 2,YAN Chang hao 2 |
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| Abstract: | Poly (methyl methacrylate) (PMMA) was chosen to wrap alumina-siloxane sol which was formed by water glass, aluminum nitrate and α-methacrylic acid; therefore, alumina-siloxane gel wrapped by PMMA was obtained. Meanwhile, rare earth ions were used to dope in the course of the reaction. Stable suspension was produced by putting the microcapsule powder wrapped by PMMA， and doped with rare earth into the methyl-silicon oil. It was found that its electrorheological (ER) effect enhance strikingly after loading electric field. |
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| Keywords: | rare earths water glass PMMA wrapped alumina siloxane gel suspension electrorheological effect |
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