新型层状结构高介电复合材料的设计与研究

高介电材料在电子电力系统、武器装备、新能源等领域具有广泛的应用，是电容器、传感器、换能器等电子元器件的关键性基础材料。传统高介电复合材料主要依靠陶瓷相或导电填料对聚合物进行改性，无法突破高介电常数与低介电损耗的技术瓶颈。本项目首次将超级电容器中大面积多孔电极的设计思路运用于聚合物基复合材料的设计制备中，提出一种新型层状结构高介电复合材料结构模型，发展一种新型高介电材料的设计方法与制备路径，建立新的填料结构与介电性能的关系模型，获得兼具高介电常数与低介电损耗的聚合物基复合材料，并探索其在储能、传感等领域的应用，为新一代高介电材料的发展及其在电子电力系统中的应用提供理论指导和技术支撑。

High-κ materials are widely applied in electric and electronic systems, weapons, sustainable energy areas, etc., which are key fundamental materials for a variety of electronic components, such as capacitors, sensors and transducers. Traditional high-κ materials are obtained by combination of ceramic or conductive fillers with polymer matrix, which are incapable to achieve high dielectric constant and low loss simultaneously. In this project, the concept of porous electrode with large specific surface areas in supercapacitor is utilized in the structure design of high-κ composite materials, and a new type high-κ material structure with an original laminated structure is proposed. The design and fabrication method of the new type high-κ material structure is investigated. The relationship model between filler structure and dielectric property is constructed. Composite materials with high dielectric constant as well as low loss are obtained. Applications of the high-κ materials in energy storage, sensing and so on are explored, which provide theoretical and technical support for the application of the new generation high-κ materials in electric and electronic systems.