PSF/BaTiO_(3)/MWCNT复合材料电介质性能研究  

Study on the Dielectric Properties of PSF/BaTiO_(3)/MWCNT Composite Materials

作　　者：瞿发海 刘雪宇 蒲泽军 钟家春 Qu Fahai;Liu Xueyu;Pu Zejun;Zhong Jiachun(Yunnan Shuifu Yuntianhua Co.,Ltd.,Equipment Operation and Maintenance Center,Zhaotong 657800,China;School of Materials Science and Engineering,Sichuan University of Light Chemical Technology,Key Laboratory of Material Corrosion and Protection,Sichuan Province,Zigong 643000,China)

机构地区：[1]云南水富云天化有限公司装备运维中心,云南昭通657800 [2]四川轻化工大学材料科学与工程学院材料腐蚀与防护四川省重点实验室,四川自贡643000

出　　处：《云南化工》2024年第10期121-127,共7页Yunnan Chemical Technology

摘　　要：采用物理分散乳化法技术,将BaTiO_(3)和碳纳米管(MWCNT)分散在聚砜(PSF)中,通过改变MWCNT的含量,制备了一系列PSF/BaTiO_(3)/MWCNT的复合材料。结果发现,乳液中的BaTiO_(3)和MWCNT通过薄层结构被PSF树脂均匀地包覆,具有良好的分散性和稳定性。另外,制备的PSF/BaTiO_(3)/MWCNT复合材料具有较高而且稳定的玻璃化转变温度(T_(g)=185℃)和初始热分解温度(T_(5%)=474℃)。2.5%MWCNT质量分数的PSF/BaTiO_(3)/MWCNT复合材料在1 MHz时的介电常数提高了104%,达到14.5;但介电损耗仍低于0.06;所有复合材料在25~185℃具有稳定的介电性能。Using physical dispersion emulsification technology,BaTiO_(3)and carbon nanotubes(MWCNT)were dispersed in polysulfone,and a series of PSF/BaTiO_(3)/MWCNT ternary composite materials were prepared by changing the content of MWCNT.The results showed that BaTiO_(3)and MWCNT in lotion were evenly coated by PSF resin through thin layer structure,with good dispersion and stability.In addition,the prepared PSF/BaTiO_(3)/MWCNT composite material has a high and stable glass transition temperature(T_(g)=185℃)and initial thermal decomposition temperature(T_(5%)=474℃).The dielectric constant of PSF/BaTiO_(3)/MWCNT composite material with 2.5 wt%MWCNT content increased by 104%at 1 MHz,reaching 14.5;But the dielectric loss is still below 0.06.All composite materials have stable dielectric properties between 25 and 185℃.

关 键 词：聚砜 复合材料 介电 性能 

分 类 号：TQ322[化学工程—合成树脂塑料工业] TB332[一般工业技术—材料科学与工程]