PZT/P(VDF-TrFE)纤维膜的静电纺丝制备及其性能

以锆钛酸铅压电陶瓷(PZT)和聚(偏氟乙烯-三氯乙烯)(P(VDF-TrFE))共聚物为原料,利用静电纺丝的方法制备了PZT/P(VDF-TrFE)纤维膜。用扫描电子显微镜、精密阻抗测试仪和拉力试验机对纤维膜的形貌、电学性能、力学性能进行了表征。结果表明,适当地提升PZT的质量分数能有效提升纤维膜中纤维丝的均匀性。当PZT质量分数为4%时,纤维丝的均匀性最佳;静电纺丝方法能够得到低介电常数的PZT/P(VDF-TrFE)纤维膜,并且通过调节PZT的质量分数,可以保证纤维膜的介电常数在一定范围内变化。PZT颗粒的加入能够有效调节PZT/P(VDFTrFE)纤维膜的拉伸强度和断裂伸长率,当PZT质量分数为4%时,纤维膜具有最佳的综合力学性能,能够满足可穿戴设备的要求。

Preparation and Property of PZT/P(VDF-TrFE) Film by Electrospinning

Using piezoelectric ceramic transducer (PZT ) and poly (vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) as material , PZT/P(VDF-TrFE) film was prepared by electrospinning . The morphology ,electrical property and mechanical property of the film with different mass fraction of PZT were characterized by scanning electron microscope , precision impedance analyzer and tensile testing machine .Results indicated that improving the mass fraction of PZT appropriately could improve the uniformity of the fiber in the film effectively ,and the fiber had the best uniformity w hen the mass fraction of PZT was 4% .The method of electrospinning could obtain PZT/P(VDF-TrFE) film with low dielectric constant ,and adjusting the mass fraction of PZT could ensure the dielectric constant of the film varied in certain range .Furthermore ,the addition of PZT could adjust tensile strength and elongation at break of the PZT/P(VDF-TrFE) film .When the mass fraction of PZT was 4% ,the film had best synthesis mechanical property ,which could meet the requirements of the wearable devices .