| 聚偏氟乙烯-钛酸钡复合材料的介电性能 |
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| 引用本文： | 董丽杰,熊传溪,陈娟,刘起虹,王雁冰,任中奎.聚偏氟乙烯-钛酸钡复合材料的介电性能[J].复合材料学报,2003,20(3):122-126. |
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| 作者姓名： | 董丽杰 熊传溪 陈娟 刘起虹 王雁冰 任中奎 |
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| 作者单位： | 武汉理工大学,材料学院,材料复合新技术国家重点实验室,武汉,430070 |
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| 基金项目： | 教育部骨干教师支持项目 |
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| 摘 要： | 用钛酸酯和钛酸丁酯偶联剂对BaTiO3粉进行表面处理,使用熔融法制备了BaTiO3/PVDF复合材料薄片。通过疏水亲油实验定性地分析了钛酸酯和钛酸丁酯偶联剂对BaTiO3粉的偶联作用,通过测定BaTiO3/PVDF的介电常数和介电损耗角正切值表征了复合材料的介电性能,BaTiO3/PVDF扫描电子显微镜(SEM)的微观形态分析发现,经过偶联剂表面处理,BaTiO3粉在PVDF中的分散情况改善。
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| 关 键 词： | BaTiO3/PVDF 偶联剂 介电性能 |
| 文章编号： | 1000-3851(2003)03-0122-05 |
| 收稿时间： | 2001-11-27 |
| 修稿时间： | 2001年11月27 |
DIELECTRIC PROPERTY OF BaTiO3/PVDF COMPOSITE PREPARED BY A MELT PROCESS |
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| DONG Lijie,XIONG Chuanxi,CHEN Juan,LIU Qihong,WANG Yanbing,REN Zhongkui.DIELECTRIC PROPERTY OF BaTiO3/PVDF COMPOSITE PREPARED BY A MELT PROCESS[J].Acta Materiae Compositae Sinica,2003,20(3):122-126. |
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| Authors: | DONG Lijie XIONG Chuanxi CHEN Juan LIU Qihong WANG Yanbing REN Zhongkui |
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| Affiliation: | State Key Laboratory of Wuhan University of Technology, Wuhan 430070,China |
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| Abstract: | The polyvinylidene fluoride (PVDF) with barium titanate (BaTiO3) was prepared in melt as a dielectric composite. BaTiO3 was modified by titanate coupling agent and Ti(OBu)4 coupling agent. The dielectric properties and the interfacial interaction of the composite were examined. It is found that the dielectric constant can reach the highest value when the BaTiO3 particle is modified by coupling agent contents of 60% and the dielectric loss has a max value when the BaTiO3 particle is modified by coupling agent of about 30%. The SEM micrographs of BaTiO 3/PVDF show that the interfacial interaction between PVDF and BaTiO3, the weight fraction of BaTiO3 and the size of modified BaTiO3 are the keys to the dielectric properties of BaTiO3/PVDF dielectric composite. |
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| Keywords: | BaTiO_3/PVDF coupling agent dielectric properties |
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