| 改性钛酸锶/PVDF复合材料介电性能研究 |
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| 引用本文： | 姚军龙,卢峰,胡学慧,高琳.改性钛酸锶/PVDF复合材料介电性能研究[J].胶体与聚合物,2013,31(2):76-79. |
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| 作者姓名： | 姚军龙 卢峰 胡学慧 高琳 |
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| 作者单位： | 1. 武汉工程大学材料科学与工程学院,武汉,430073
2. 江汉大学化学与环境工程学院,武汉,430056 |
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| 基金项目： | 国家自然科学基金项目，湖北省教育厅项目，武汉工程大学科学研究基金 |
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| 摘 要： | 采用具有强络合能力的酒石酸在碱性溶液中对SrTiO3陶瓷颗粒进行表面改性,将改性后的SrTiO3颗粒与聚偏二氟乙烯(PVDF)经热压共混成型,制备出系列陶瓷/聚合物基复合材料,对改性SrTiO3/PVDF复合材料进行了介电性能分析。结果表明:添加了改性SrTiO3的复合材料比未改性SrTiO3复合材料的介电常数增加值达34%以上,同时,改性复合材料的介电损耗仍保持较低水平;随着改性SrTiO3在复合材料中含量的增加,介电常数也随之增加,介电损耗仍保持不变,改性后的陶瓷/聚合物复合材料表现出优异的综合介电性能。
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| 关 键 词： | 钛酸锶 PVDF 表面改性 介电性能 |
Dielectric Property of Modified SrTiO3/PVDF Composites |
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| YAO Junlong
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LU Feng
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HU Xuehui
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GAO Lin.Dielectric Property of Modified SrTiO3/PVDF Composites[J].Chinese Journal of Colloid and Polymer,2013,31(2):76-79. |
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| Authors: | YAO Junlong LU Feng HU Xuehui GAO Lin |
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| Affiliation: | 1.School of Materials Science and Engineering,Wuhan Institute of Technology,Wuhan 430073;2.School of Chemistry and Environmental Engineering,Jianghan University,Wuhan 430056) |
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| Abstract: | Modified strontium titanate(ST) was prepared by solution method on the condition of alkalescence,and the complexing agent is tartaric acid.A series of high-ielectric-constant and low-dielectric-loss ceramic/polymer composites were prepared with modified ST powder and PVDF after blending and hot expressing technology.The results indicated that the dielectric constant of composite increases 34% after the modification of ST,and the dielectric loss is unchanged;the dielectric constant increase with content of ST,meanwhile,the dielectric loss does not change.Modified composite shows excellent comprehensive dielectric properties. |
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| Keywords: | Strontium Titanate PVDF Complex Modified Dielectric Properties |
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