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描述了一种有序微孔结构压电聚合物功能膜的制备方法,利用模板的高度有序实现薄膜微孔结构的精确控制.将此制备方法用于氟聚合物压电驻极体薄膜的制备,通过扫描电子显微镜(SEM)对其微观结构的观察表明薄膜具有理想的有序结构.对氟聚合物压电驻极体压电性的研究则是利用正压电效应测量准静态压电系数d33,通过等温衰减和压强依赖性的测量考察其压电性能.结果表明:有序结构氟聚合物压电驻极体的准静态压电系数d33可高达300pC/N;与无序结构氟聚合物压电驻极体薄膜相比较,有序结构薄膜d33的热稳定性有了明显的提高;在～32kPa的压强范围,压电系数d33表现出相当大的压强依赖性,这可能与薄膜的杨氏模量随压强增大而增强有关.
A method for preparing a functional polymer membrane with an ordered microporous structure is described, which utilizes the highly ordered template to achieve precise control of the microporous structure of the membrane. The preparation method is applied to the fabrication of a piezoelectric polymer electret thin film The observation of its microstructure by scanning electron microscope (SEM) shows that the film has an ideal ordered structure.The piezoelectricity of fluoropolymer piezoelectric electret is studied by using the positive piezoelectric effect to measure the quasi-static piezoelectric Coefficient d33, the piezoelectric properties were investigated by isothermal decay and pressure-dependent measurements.The results show that the quasi-static piezoelectric coefficient d33 of ordered fluoropolymer piezoelectric electrets can be as high as 300pC / N, Compared with the polymer piezoelectric electret film, the thermal stability of the ordered structure film d33 has been significantly improved; in the pressure range of ~ 32kPa, the piezoelectric coefficient d33 shows a considerable pressure dependence, which may be related to the film Young’s modulus increases with increasing pressure on the related.