| 纳米钛酸钡掺杂聚酰亚胺基高介电复合薄膜的制备及性能 |
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| 引用本文： | 翁凌,刘立柱,杨立倩,曹振兴,王诚. 纳米钛酸钡掺杂聚酰亚胺基高介电复合薄膜的制备及性能[J]. 高分子材料科学与工程, 2012, 0(2): 113-116 |
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| 作者姓名： | 翁凌 刘立柱 杨立倩 曹振兴 王诚 |
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| 作者单位： | 哈尔滨理工大学材料科学与工程学院;工程电介质及其应用技术教育部重点实验室哈尔滨理工大学 |
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| 基金项目： | 黑龙江省自然科学基金面上项目(E200907、E200607);黑龙江省自然科学基金重点项目(ZD201004);哈尔滨理工大学青年科学研究基金项目(2009YF010) |
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| 摘 要： | 采用原位聚合法和高速砂磨法制备了纳米钛酸钡/聚酰亚胺高介电常数复合薄膜,分析了不同制备方法及钛酸钡粉体用量对复合薄膜结构和性能的影响。实验结果表明,高速砂磨法对于纳米钛酸钡粉体的分散效果优于原位分散法;钛酸钡粉体的引入,有效提高了复合薄膜的热稳定性和介电性能。当粉体的体积分数达到50%时,复合薄膜介电常数相较于纯膜提高了10倍,而介电损耗只有少量增加。
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| 关 键 词： | 聚酰亚胺 纳米钛酸钡 高介电常数 复合薄膜 |
Fabrication and Properties of Nano-BaTiO3/Polyimide Composite Film |
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| Ling Weng,Lizhu Liu,Liqian Yang,Zhenxing Cao,Cheng Wang. Fabrication and Properties of Nano-BaTiO3/Polyimide Composite Film[J]. Polymer Materials Science & Engineering, 2012, 0(2): 113-116 |
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| Authors: | Ling Weng Lizhu Liu Liqian Yang Zhenxing Cao Cheng Wang |
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| Affiliation: | 1(1.College of Materials Science & Engineering,Harbin University of Science and Technology;2.Key Laboratory of Engineering Dielectrics and Its Application,Ministry of Education,Harbin University of Science and Technology,Harbin 150040,China) |
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| Abstract: | Nano-BaTiO3/ polyimide(PI) composite films were prepared through high speed mechanical dispersion and in-situ polymerization.The microstructure,thermal stability and dielectric properties were investigated.The results indicate that the dispersion of BaTiO3 in PI matrix through high speed mechanical dispersion is better than that of in-situ polymerization.Moreover,it also indicates that both of the thermal stability and dielectric properties of BaTiO3/PI composite films increase with the BaTiO3’s content increased.When the volume content of BaTiO3 reaches 50%,the dielectric constant of BaTiO3/PI composite films is 10 times higher than of pure PI film,but the dielectric loss is only 3 times higher than of pure PI. |
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| Keywords: | polyimide nano-BaTiO3 high dielectric constant composite films |
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