ACS Appl Mater Interfaces. 2010 May;2(5):1290-3. doi: 10.1021/am100296u.
Three-phase-percolative composites with ZnO radial nanoclusters (R-ZnO) and BaTiO(3) (BT) nanoparticles embedded into polyvinylidene fluoride (PVDF) were prepared by using a simple blending and hot-molding technique. The BT + PVDF composite with a volume fraction of 30 vol % BT particles were employed as a thermoplastic-ceramic matrix. Compared with the two-phase-percolative composites of R-ZnO/PVDF, the three-phase-percolative (R-ZnO/(BT + PVDF)) composites showed enhanced dielectric constant and decreased dielectric loss. The percolation theory was used to explain the experimental results. The increased percolation threshold was studied in detail, and the thermal stability was also investigated.
采用简单的共混和热压成型技术制备了具有 ZnO 径向纳米簇(R-ZnO)和 BaTiO3(BT)纳米颗粒嵌入聚偏二氟乙烯(PVDF)的三相渗滤复合材料。将体积分数为 30 vol% BT 颗粒的 BT + PVDF 复合材料用作热塑性陶瓷基质。与 R-ZnO/PVDF 的两相渗滤复合材料相比,三相渗滤(R-ZnO/(BT + PVDF))复合材料表现出更高的介电常数和更低的介电损耗。用渗流理论解释了实验结果。详细研究了增加的渗流阈值,并研究了热稳定性。