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概述了旨在获得高性能和可靠的嵌入电容元件的最佳环氧—钛酸钡(BaTiO3)纳米复合物。为了在高填充量下改善聚合物-陶瓷纳米复合物的可靠性,采用仲橡胶处理的环氧进行环氧基体的改性,在连续的原环氧相(海洋)中形成隔离的柔性区域(岛屿)。系统地评估了海洋-岛屿结构对嵌入电容元件的热机械性质,附着性和热应力可靠性的影响。最佳的橡胶处理的纳米复合物组成具有50以上的高介质常数,成功地通过了严格的热应力可靠性试验。大面积的薄膜电容器测得89MV/m的高击穿电压和约为1.9×10-11A/cm2的低漏电流。
Outlines the best epoxy-barium titanate (BaTiO3) nanocomposites designed to achieve high performance and reliable embedded capacitive components. In order to improve the reliability of the polymer-ceramic nanocomposites at high loadings, secondary rubber-treated epoxy was used to modify the epoxy matrix to form isolated flexible regions in the continuous raw epoxy phase (ocean) islands). The effects of ocean-island structures on the thermomechanical properties, adhesion and thermal stress reliability of embedded capacitive elements are systematically evaluated. The best rubber-processed nanocomposite composition with a high dielectric constant of 50 or more successfully passed stringent thermal stress reliability tests. Large area film capacitors measure a high breakdown voltage of 89MV / m and a low leakage current of about 1.9 x 10-11 A / cm2.