欢迎登录材料期刊网

材料期刊网

高级检索

采用纳米晶PVC和PVDF两种聚合物为基体, 采用复合材料模压工艺制备了PZT/聚合物压电复合材料, 研究了聚合物基体和陶瓷体积分数对复合材料的结构及介电、压电和铁电性能的影响.结果表明: 增加陶瓷体积分数有助于获得性能优良的压电复合材料.在压电陶瓷高含量区(≥50%), 部分压电陶瓷颗粒相互联接, 形成了类似0-3(1-3)型复合连通形式, 是复合材料获得优良电性能的主要原因.在陶瓷含量相同时, 聚合物的性能影响了复合材料的电性能.陶瓷含量为50%时, 由于PVDF基体有较高的介电常数, 该复合材料体系的矫顽场Ec明显低于PVC体系, 但PVC体系显示出较高的剩余极化Pr, 这是PVC体系可以获得较高的机电耦合系数的主要原因;采用PVC为基体获得了具有较好的综合机电性能: d33=15 pC·N-1, g33=41.5 mV·m·N-1, Kp=0.226, 良好的柔顺性和机械加工性的压电复合材料, 有望在水声材料中获得应用.

参考文献

[1] Wilson SA;Maistros GM;Whatmore RW .Structure modification of 0-3 piezoelectric ceramic/polymer composites through dielectrophoresis[J].Journal of Physics, D. Applied Physics: A Europhysics Journal,2005(2):175-182.
[2] Glushanin SV;Topolov VY .Features of the electromechanical properties of 0-3 composites of the Pb(Zr,Ti)O-3-based ferroelectric ceramics-polymer type[J].Technical physics letters: Letters to the Russian journal of applied physics,2005(4):346-348.
[3] Abrar A;Zhang D;Su B et al.1~3 connectivity piezoelectric ceramic-polymer composite transducers made with viscous polymer processing for high frequency ultrasound[J].Ultrasonics,2005,42:1.
[4] 张联盟,游达.0-3 PZT/PVDF压电复合材料的制备及其性能[J].复合材料学报,2004(03):142-145.
[5] 赵寿根,程伟.1-3型压电复合材料及其研究进展[J].力学进展,2002(01):57-68.
[6] Kara H;Perry A;Stevens R et al.Interpenetrating PZT/polymer composites for hydrophones:Models and experiments[J].Ferroelectrics,2004,65:317.
[7] Lau ST.;Kwok KW.;Chan HLW.;Choy CL. .Piezoelectric composite hydrophone array[J].Sensors and Actuators, A. Physical,2002(1):14-20.
[8] Xiong CX.;Wang T.;Liu QH.;Dong LJ.;Chen J.;Liu D. .Preparation and structural characterization of nanocrystalline poly(vinyl chloride)[J].Journal of Applied Polymer Science,2004(1):563-569.
[9] WENGER M.P.;ALMEIDA P.L. .The Ferroelectric Properties of Piezoelectric Ceramic/Polymer Composites for Acoustic Emission Sensors[J].Polymer engineering and science,1999(MARCH):483-492.
[10] Cui C X;Baughman R H;Igbal Z.Improved piezoelectric 0~3 ceramic particle/polymer composites[A].,1996:605.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%