表面修饰对钛酸钡与聚酰亚胺复合材料结构和介电性能的影响
The Influence of Surface Modification on the Structure and Dielectric Properties for Barium Titanate and Polyimide Composites

作者: 宋志斌 , 张邦文 , 张奇伟 , 布林朝克 , 邢瑞光 :内蒙古科技大学材料与冶金学院,内蒙古 包头;

关键词: 钛酸钡高分子复合材料表面修饰介电常数介电损耗Barium Titanate Polymer Composites Surface Modification Dielectric Constant Dielectric Loss

摘要:
如何更好的控制相界面来提高介电性能是目前高分子介电复合材料的研究热点之一。本文采用氨基硅烷、油酸和对氨基水杨酸对纳米钛酸钡进行表面修饰,然后通过原位聚合制备了纳米BaTiO3/聚酰亚胺(PI)复合材料。对表面修饰钛酸钡进行了表征,测量了其复合材料的介电性能。研究发现:三种改性剂均能促进BaTiO3在聚酰亚胺中的分散,并且改善复合材料的介电性能。当BT体积分数为15%时,在频率为1K Hz下,复合材料的介电常数达到30,而介电损耗为0.02。

Abstract: How to well control the phase interfaces to improve dielectric performance is one of the research hotspots in polymer dielectric composites. In this paper, nanometer barium titanate (BT) was modified by amino silane (KH550), oleic acid (OA), and p-aminosalicylic acid (ASA), then their composites with polyimide (PI) were prepared by in-situ polymerization. The modified BT powders were characterized by various techniques, and their composites were tested with respect to the dielectric properties. The results show that these three organic molecules enable the improvement of the dispersity of nanometer BT in PI host, and thus the dielectric properties of the resulting composites. When PI is loaded with 15 vol% nanometer BT, dielectric constant and loss of the composites is 30 and 0.02, respectively.

文章引用: 宋志斌 , 张邦文 , 张奇伟 , 布林朝克 , 邢瑞光 (2016) 表面修饰对钛酸钡与聚酰亚胺复合材料结构和介电性能的影响。 材料科学, 6, 133-141. doi: 10.12677/MS.2016.63017

参考文献

[1] 李小培, 艾照全, 肖宇, 艾书伦, 朱超. 油酸改性纳米二氧化钛/聚丙烯酸酯复合乳液的制备及表征[J]. 粘接, 2015, 11(4): 50-53.

[2] 邵天奇, 任天令, 李春晓, 等. 高介电常数材料在半导体存储器件中的应用[J]. 固体电子学研究与进展, 2002, 22(3): 312-315.

[3] Kim, Y., Tomioka, Y. and Asamitsu, A. (1996) Origins of Colossal Magnetoresistance in Perovskite-Type Manganese Oxides. Journal of Applied Physics, 79, 5288-5292.
http://dx.doi.org/10.1063/1.361353

[4] Kim, P., Doss, N.M., Tillotson, J.P., et al. (2009) High Energy Density Nanocomposites Based on Surface-Modified BaTiO3 Abdaferroe Lectric Polymer. ACS Nano, 3, 2581.

[5] Zhang, Y., Wang, Y., Deng, Y., Li, M. and Bai, J. (2012) High Dielectric Constant and Low Loss in Polymer Composites Filled by Self-Passivated Zinc Particles. Materials Letters, 72, 9.
http://dx.doi.org/10.1016/j.matlet.2011.12.080

[6] Xie, S.H., Zhu, B.K., Wei, X.Z., et al. (2006) Polyimide/BaTiO3 Composites with Controllable Dielectric Properties. Composites: Part A, 36, 1152-1157.

[7] 谢曙辉. 聚酰亚胺基高介电常数复合材料的设计、制备与性能研究[D]: [博士学位论文]. 杭州: 浙江大学, 2005.

[8] 高濂, 孙静, 刘阳桥. 纳米粉体的分散及表面改性[M]. 北京: 化学工业出版社, 2003.

[9] 丁孟贤. 聚酰亚胺化学、结构与性能的关系及材料[M]. 北京: 科学出版社, 2006.

[10] Dang, Z.m., Peng, B., Xie, D., et al. (2008) High Dielectric Permittivity Silver/Polyimide Composite Films with Excellent Thermal Stability. Applied Physics Letters, 19, 1418-1422.
http://dx.doi.org/10.1063/1.2894571

[11] Zhou, Y.C., Wang, L., Zhang, H., et al. (2012) Enhanced High Thermal Conductivity and Low Permittivity of Polyimide Based Composites By Core-Shell Ag@ SiO2 Nanoparticle Fillers. Applied Physics Letters, 10, 012903-012911.
http://dx.doi.org/10.1063/1.4733324

[12] Ahmad, Z. and Marke, J.E. (2001) Polyimide-Ceramic Hybrid Compo-sites by the Sol-Gel Route. Chemistry of Materials, 13, 3320-3330.
http://dx.doi.org/10.1021/cm010175n

[13] 单芙蓉, 于志明, 罗丽丝, 张扬. 硅烷偶联剂KH550表面改性纳米Al2O3的研究[J]. 化工新型材料, 2013, 5(41): 169-171.

[14] 朱建君, 翟秋阁, 李晓玲, 朱锦锦, 于心爱. KH550改性纳米SiO2的制备及其界面相互作用研究[J]. 化学研究与应用, 2014, 7(26): 988-992.

[15] 郑育英, 黄慧民, 姬文晋, 邓淑华, 欧得华. 油酸改性纳米ZrO2粉体及其机制研究[J]. 稀有金属, 2008, 1(32): 64-67.

[16] 张立华, 高丽娟, 李晓奇. 纳米氧化锆表面化学修饰试验研究[J]. 湿法冶金, 2012, 31(3): 184-186.

[17] 吴长俊, 王保金. 油酸改性纳米二氧化锆的研究[J]. 辽宁化工, 2009, 9(38): 617-620.

[18] Muller, B. and Langenbucher, J. (2002) Corosion Inhibition of Aluminium and Zine Pig-ments by Saccharides. Corrosion Science, 44, 1583-1591.
http://dx.doi.org/10.1016/S0010-938X(01)00170-6

[19] 邓素芬, 吴晓彦, 何立敏, 熊传溪, 董丽杰. 柔性高储能P(VDF-CTFE)/PA11-g-GMA聚合膜的制备与性能研究[J]. 高分子学报, 2014(10): 1386-1390.

分享
Top