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| Ba0.5 Sr0.5 TiO3/PMMA复合材料介电性能研究 | |
| 引用本文： | 刘旭燕,李三喜,陈文宝,陈智明,张帆,王芳芳.Ba0.5 Sr0.5 TiO3/PMMA复合材料介电性能研究[J].现代塑料加工应用,2007,19(3):9-12. |
| 作者姓名： | 刘旭燕 李三喜 陈文宝 陈智明 张帆 王芳芳 |
| 作者单位： | 1. 沈阳化工学院,辽宁,沈阳,110142 2. 沈阳工业大学,辽宁,沈阳,110023 3. 日本富山县立大学,日本,9390398 |
| 基金项目： | 辽宁省教育厅资助项目;辽宁省沈阳市科技计划 |
| 摘 要： | 采用溶胶凝胶法（sol-gel）制备了Ba0．5Sr0．5TiO3／PMMA复合材料粉体。应用红外光谱（IR）、偏光显微镜（PLM）、扫描电镜（SEM）等分析手段，对样品进行了表征与分析，研究了乙烯基三乙氧基硅烷偶联剂在BST55／PMMA复合材料制备过程中起的桥联作用，并讨论了MMA和BST55物质的量比与其介电性能的关系。结果表明，在凝胶化过程中，适量的偶联剂不仅起着交联剂的作用，而且能改善复合材料的粒子聚集态；而复合材料的介电常数远远低于BST55陶瓷，且随着PMMA含量的增加而有所降低。 |
| 关 键 词： | 溶胶凝胶法 钛酸锶钡 聚甲基丙烯酸甲酯 复合材料 介电性能 |
| 修稿时间： | 2006-11-212007-02-15 |
Dielectric Properties of Ba0.5 Sr0.5 TiO3/PMMA Composites |
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| Liu Xuyan,Li Sanxi,Chen Wenbao,Chen Zhiming,Zhang Fan,Wang Fangfang.Dielectric Properties of Ba0.5 Sr0.5 TiO3/PMMA Composites[J].Modern Plastics Processing and Applications,2007,19(3):9-12. | |
| Authors: | Liu Xuyan Li Sanxi Chen Wenbao Chen Zhiming Zhang Fan Wang Fangfang |
| Affiliation: | 1. Shenyang Institute of Chemical Technology, Shenyang, Liaoning, 110142; 2. Shenyang University of Technology, Shenyang, Liaoning, 110023 ; 3. Toyama Prefectural University, Japan, 9390389 |
| Abstract: | The powders of Ba0.5Sr0.5TiO3(BST55)/PMMA composites were prepared by the sol-gel method. The properties of the samples were investigated by IR,PLM and SEM. Then the effect of vinyltriethoxysilane coupling agent on the junction behavior in the preparation of BST55/PMMA composites was studied and the relationship between molar ratio of BST55/MMA and the dielectric constants of the composites were also discussed. The results show that in the course of gelation, a certain amount of coupling agent joining the network as a junction can improve the aggregate state of BST55/PMMA composites particles. The dielectric constants of the composites are much smaller than BST55 ceramics and decrease while the content of PMMA in composites increases. |
| Keywords: | sol-gel method strontium barium titanate polymethyl methacrylate composites dielectric properties |
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