In this work, polypyrrole (PPy) particles were first decorated on the surface of graphene oxide (GO), then the hybrid [email protected] particles were incorporated into poly(vinylidene fluoride) (PVDF) to prepare the PVDF/[email protected] composites. The microstructure characterizations showed that PPy particles were successfully decorated on the GO platelets and simultaneously, GO was partially reduced. With the aid of GO, PPy particles with much smaller diameters exhibited good dispersion in the PVDF/[email protected] composites. Interestingly, different from the apparent nucleation effect of PPy particles on PVDF crystallization, the nucleation effect of PPy particles in the PVDF/[email protected] composites was greatly reduced. The PVDF/[email protected] composites exhibited higher electrical conductivity compared with the PVDF/PPy composites. More interestingly, compared with the PVDF/PPy composites, largely enhanced permittivity and slightly reduced dielectric loss were simultaneously achieved for the PVDF/[email protected] composites. The mechanisms were related to the construction of multiple-interfacial polarization and the enhanced conductivity of the composites.

在这项工作中，首先将聚吡咯（PPy）颗粒装饰在氧化石墨烯（GO）的表面上，然后将杂化的[受电子邮件保护的]颗粒掺入聚偏二氟乙烯（PVDF）中以制备PVDF / [受电子邮件保护的]复合材料。微观结构表征表明，PPy颗粒已成功修饰在GO血小板上，同时GO被部分还原。借助GO，直径较小的PPy颗粒在PVDF / [受电子邮件保护的]复合材料中表现出良好的分散性。有趣的是，与PPy颗粒对PVDF结晶的表观成核作用不同，PVyf / [受电子邮件保护的]复合材料中PPy颗粒的成核作用大大降低。与PVDF / PPy复合材料相比，PVDF / [受电子邮件保护的]复合材料显示出更高的电导率。更有趣的是，与PVDF / PPy复合材料相比，PVDF / [受电子邮件保护]复合材料的介电常数大大提高，介电损耗略有降低。机理与多界面极化的构造和复合材料电导率的提高有关。