BST层厚度对BST/PVDF层状复合材料性能的影响  

The Effect of BST Layer Thickness on the Properties of BST/PVDF Lamellar Composites

作　　者：管海清[1] 金开[1] 韩俊[1] 任超[1] 李永泉[1] 刘军[1] GUAN Haiqing;JIN Kai;HAN Jun;REN Chao;LI Yongquan;LIU Jun(Jiangsu Province Key Laboratory of High-end Structural Materials, School of Materials Science and Engineering, Jiangsu University,Zhenjiang 212013, China)

机构地区：[1]江苏大学材料科学与工程学院,江苏省高端结构材料重点实验室,江苏镇江212013

出　　处：《陶瓷学报》2016年第4期334-337,共4页Journal of Ceramics

基　　金：国家自然科学基金(11272138);教育部博士点基金优先发展领域课题(20123227130002);江苏省大学生实践创新训练重点项目(201410299008Z)

摘　　要：以钛酸锶钡(BST)超薄片为基体材料,添加聚偏氟乙烯(PVDF)聚合物制得的层状复合材料具有良好的介电性能,并具有良好的挠曲性,是一种柔性复合材料。在保持PVDF溶液比值仍1:8的情况下,逐渐增加BST厚度,复合材料对挠曲变形的抵抗能力增加,材料的介电常数呈现增加的趋势,介质损耗下降。不同厚度BST的复合材料介电常数以及介质损耗随频率均表现出相同的变化趋势。The layered composite, which is a kind of flexible composite material, prepared with barium strontium titanate (BST) ultrathin slices as the matrix and polyvinylidene fluoride (PVDF) polymer as the additive, exhibited good dielectricity and flexibility. With the increasing of the thickness of BST, the composites’ resistance to bend and dielectricity are increasing and their dielectric loss is decreasing with the ratio of PVDF solution at 1:8. The dielectric constant and the dielectric loss of the composites prepared from BST layer with different thickness both showed the same regularity.

关 键 词：BST PVDF 介电常数 介质损耗 

分 类 号：TQ174.75[化学工程—陶瓷工业]