| Ba0.6Sr0.4TiO3/聚偏氟乙烯-聚甲基丙烯酸甲酯复合材料的制备及其介电性能 |
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| 引用本文： | 吴思晨,郭艺婷,刘书航,刘振楠,史芳军,李宁,许杰,高峰. Ba0.6Sr0.4TiO3/聚偏氟乙烯-聚甲基丙烯酸甲酯复合材料的制备及其介电性能[J]. 无机化学学报, 2022, 38(1): 119-126 |
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| 作者姓名： | 吴思晨 郭艺婷 刘书航 刘振楠 史芳军 李宁 许杰 高峰 |
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| 作者单位： | 西北工业大学材料学院;山东煜辉电子科技有限责任公司 |
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| 基金项目： | 国家自然科学基金(No.51961135301)资助。 |
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| 摘 要： | 采用流延热压工艺制备Ba0.6Sr0.4TiO3(BST)/聚偏氟乙烯(PVDF)?聚甲基丙烯酸甲酯(PMMA)复合薄膜,研究了PMMA含量对复合材料微观组织结构和介电性能的影响规律。结果表明,BST相能够均匀分散在聚合物基体中,归因于PMMA与PVDF良好的相容性,2种聚合物之间的界面不分明;随着PMMA含量的增加,复合材料的介电常数先降低后升高,耐击穿强度和介电可调性先增加后减少。PMMA含量(体积分数)为15%的BST/PVDF?PMMA15复合材料的综合性能最佳:介电常数为23.2,介电损耗为0.07,耐击穿强度为1412 kV·cm-1,在550 kV·cm-1偏压场下,介电可调性为26.2%。
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| 关 键 词： | 钛酸锶钡 聚合物 复合材料 介电性能 |
| 收稿时间： | 2021-08-06 |
| 修稿时间： | 2021-11-08 |
Fabrication and Dielectric Properties of Ba0.6Sr0.4TiO3/Poly(vinylidene fluoride)-Poly(methyl methacrylate) Composites |
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| WU Si-Chen,GUO Yi-Ting,LIU Shu-Hang,LIU Zhen-Nan,SHI Fang-Jun,LI Ning,XU Jie,GAO Feng. Fabrication and Dielectric Properties of Ba0.6Sr0.4TiO3/Poly(vinylidene fluoride)-Poly(methyl methacrylate) Composites[J]. Chinese Journal of Inorganic Chemistry, 2022, 38(1): 119-126 |
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| Authors: | WU Si-Chen GUO Yi-Ting LIU Shu-Hang LIU Zhen-Nan SHI Fang-Jun LI Ning XU Jie GAO Feng |
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| Affiliation: | (State Key Laboratory of Solidification Processing,School of Materials Science and Engineering,Northwestern Polytechnical University,Xi'an 710072,China;Shandong Yuhui Electronic Technology Co.,Ltd.,Zibo,Shandong 255100,China) |
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| Abstract: | Ba0.6Sr0.4TiO3 (BST)/poly(vinylidene fluoride) (PVDF)-poly(methyl methacrylate) (PMMA) composite films were prepared by tape casting and hot pressing. The effects of PMMA content on the phase structure and electrical properties of the composites were studied. The results showed that the BST phase was uniformly dispersed in the polymer matrix. The interface between the two polymers is not clear, which is attributed to the good compatibility between PMMA and PVDF. With the increase of PMMA content, the dielectric constant of the composites is negatively correlated with the breakdown strength and dielectric tunability. BST/PVDF-PMMA15 composite with PMMA content (volume fraction) of 15% showed the best dielectric properties with the dielectric constant of 23.2, the dielectric loss of 0.07, the breakdown strength of 1 412 kV·cm-1, and the dielectric tunability was 26.2% under the DC bias of 550 kV·cm-1. |
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| Keywords: | barium strontium titanate polymer composite dielectric properties |
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