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| KH550硅烷偶联剂对复合材料结构和介电性能影响 | |
| 引用本文： | 王海燕,党智敏,武晋萍,施昌勇.KH550硅烷偶联剂对复合材料结构和介电性能影响[J].功能材料,2006,37(7):1091-1093,1097. |
| 作者姓名： | 王海燕 党智敏 武晋萍 施昌勇 |
| 作者单位： | 1. 北京化工大学,教育部纳米材料重点实验室,北京,100029 2. 北京化工大学,教育部纳米材料重点实验室,北京,100029;北京化工大学,北京市新型高分子材料制备及工艺重点实验室,北京,100029 3. 北京服装学院,基础部,北京,100029 |
| 摘 要： | 采用KH550硅烷偶联剂对BaTiO3粉体进行了表面处理,用溶液混合法及热压工艺制备了BaTiO3/PVDF复合材料.通过扫描电子显微镜对复合材料形貌的分析发现偶联剂的用量对复合材料形态影响较大; 用傅立叶变换红外光谱仪和X射线衍射分析了偶联剂用量对BaTiO3/PVDF复合材料微观结构影响; 通过阻抗分析仪研究了复合材料的介电性能, 发现偶联剂用量对复合材料介电性能影响很大,当偶联剂用量在1%(质量分数)时,BaTiO3体积分数为40%的复合材料介电常数高达51. |
| 关 键 词： | BaTiO3/PVDF 复合材料 硅烷偶联剂 |
| 文章编号： | 1001-9731（2006）07-1091-03 |
| 收稿时间： | 2005-10-09 |
| 修稿时间： | 2005-10-092005-12-12 |
Study on the dielectric properties of BaTiO3/PVDF composite modified by coupling agent |
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| WANG Hai-yan,DANG Zhi-min,WU Jin-ping,SHI Chang-yong.Study on the dielectric properties of BaTiO3/PVDF composite modified by coupling agent[J].Journal of Functional Materials,2006,37(7):1091-1093,1097. | |
| Authors: | WANG Hai-yan DANG Zhi-min WU Jin-ping SHI Chang-yong |
| Affiliation: | 1. Key Laboratory of the Ministry of Education on Nanomaterials, Beijing University of Chemical Technology, Beijing 100029, China; 2.Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China; 3. Beijing Garments College, Beijing 100029,China |
| Abstract: | Barium titanate(BaTiO_3) / polyvinylidene fluoride (PVDF) composites were prepared by solution and hot-pressed process after BaTiO_3 powder was modified by KH550 siloxane coupling agent.The Scan Electron microscopy(SEM) images show that mass fraction of coupling agent has a great impact on the morphologies of the composites.The impact of mass fraction of coupling agent on microstructure was studied by FTIR,XRD.The dielectric properties were measured by impedance analyzer.It was found that mass fraction of coupling agent has an important impact on dielectric property,especially at 1wt% where the dielectric permittivity of the composite reached the maximum,51 at 40vol% BaTiO_3. |
| Keywords: | BaTiO3/PVDF composite KH550 siloxane coupling agent dielectric properties |
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