Zn/PVDF复合薄膜的结构和压电性能研究  

Study on Piezoelectric Properties and Structure of Zn/PVDF Composite Film

作　　者：惠迎雪[1] 牛小玲[1] 刘卫国[1] 刘政[1] 

机构地区：[1]西安工业大学光电工程学院

出　　处：《西安工业大学学报》2006年第5期409-412,共4页Journal of Xi’an Technological University

基　　金：陕西省教育厅项目(05JK220);陕西省薄膜技术与光学检测重点实验室项目(ZSKJ200408)

摘　　要：为获得新型高性能铁电聚合物薄膜的制备技术,采用热压法工艺制备了Zn颗粒/聚偏二氟乙烯(PVDF)金属聚合物压电薄膜.通过X射线衍射仪(XRD)和傅立叶红外光谱仪(FTIR)对晶形结构进行了分析,运用准静态压电测试仪测量了复合薄膜的压电应变常数d33.结果表明:Zn颗粒的加入使复合薄膜诱导产生β晶相,而热压制备的纯PVDF薄膜只含有非极性的α晶相;同时,Zn/PVDF复合薄膜的压电应变常数d33相比于PVDF薄膜明显提高,具有较强的压电性;并且,压电性能明显受到薄膜中氧化锌含量的影响,在一定范围内,随着Zn含量的增加,复合薄膜的压电应变常数也随之增加.Metal-organic polymer composite film of crystalline structure has been investigated using XRD Zn/PVDF is obtained by hot-press method. The and FTIR and the value of d33 （piezoelectric strain constant ）is measured with static instrumentation. The results show.. Doping with zinc grain induces β phase formation of Zn/PVDF prepared by hot-press method,while the films of pure PVDF without zinc grains only contain non-polar crystalline（α phase） ;The composite film exhibits piezoelectricity and the value of d; is improved clearly than the pure PVDF film. It is indicated that the content of zinc oxide affects piezoelectric properties and the piezoelectric strain constant d33 of the composite increases with the content of zinc.

关 键 词：薄膜 压电复合材料 聚偏二氟乙烯 压电应变常数d33 

分 类 号：TB383.2[一般工业技术—材料科学与工程]