一种高介电电容薄膜的制备及其性能研究  

Preparation and Properties of A High Dielectric Capacitance Thin Film

作　　者：张佳龙 叶正涛[1] ZHANG Jia-long;YE Zheng-tao(School of Materials Science and Engineering,Hubei University,Wuhan 430062)

机构地区：[1]湖北大学材料科学与工程学院,湖北武汉430062

出　　处：《胶体与聚合物》2024年第3期130-132,共3页Chinese Journal of Colloid & Polymer

摘　　要：本文将表面附着羟基基团的BaTiO_(3)纳米粒子或MWCNTs均匀分散到聚醚酮酮(PEKK)基体中,用以改善其介电性能;在添加单种填料的基础上,同时添加BaTiO_(3)和MWCNTs以获取性能更优的复合材料。结果表明,在PEKK中分别添加20 wt%含量的BaTiO_(3)或5 wt%含量的MWCNTs时,复合薄膜各获得一最佳介电常数(εr)值;在添加20 wt%含量的BaTiO_(3)的同时再添加7 wt%含量的MWCNTs时,复合薄膜得到一更佳的εr值。In this work,surface-modified barium titanate(BaTiO3)nanoparticles with hydroxyl groups or multi-walled carbon nanotubes(MWCNTs)were uniformly dispersed into the polyetherketoneketone(PEKK)matrix to enhance its dielectric properties.Moreover,in addition to adding a single type of filler,a combination of both BaTiO_(3) and MWCNTs was attempted to achieve composite materials with superior performance.Results showed that when 20 wt%of BaTiO_(3) or 5 wt%of MWCNTs were added to PEKK,the composite films achieved optimal values of relative permittivity(εr).More specifically,when 20 wt%of BaTiO_(3) was combined with 7 wt%of MWCNTs,the PEKK composite film exhibited an even better εr value than either filler alone.

关 键 词：聚醚酮酮 介电性能 复合薄膜 

分 类 号：TB332[一般工业技术—材料科学与工程]