摘要: 高介电常数和低介电损耗的聚合物纳米复合材料具有易加工、成本低等优点,在能源存储和工程电介质领域有着广泛而重要的应用。核-壳策略是设计和制备这一材料的强有力工具。与常规方法相比,核-壳策略具有多个优点,包括:(1)能够保证复合材料中的纳米颗粒即使在高填充分数下仍具有良好的分散性,(2)能够在提高介电常数的同时保持高的击穿强度,(3)能够利用渗流理论提高复合材料的介电常数而不增加介电损耗并大幅降低击穿强度,(4)能够加深对纳米复合材料界面性质与性能关系的理解。报告人采用原子转移自由基聚合、可逆加成-断裂转移自由基聚合等方法,制备了一系列具有核壳结构的高介电常数、低介电损耗的聚合物纳米复合材料,研究了这一类材料在电能存储和作为电介质的应用。本报告介绍了报告人近三年来在这一领域的具体进展。 High-k polymer nanocomposites have extensive applications in energy storage and dielectric application because of their ease of processing and flexibility. Core-shell nanoarchitecture strategies have been versatile and powerful tools for the design and preparation of advanced high-k polymer nanocomposites. This lecture summarizes the state-of-the-art progress which are closely associated with the application of the core-shell nanoarchitecture strategies to design and prepare high-k polymer nanocomposites, emphasizing their advantages—that is, achieving homogeneous nanoparticle dispersion even in highly loaded nanocomposites, resolving the well-known paradox between the increase of dielectric constant and the increase of breakdown, suppressing the dielectric loss while maintaining the high dielectric constant of polymer nanocomposites filled with electrically conductive particles, and obtaining the fundamental insights into the role of interface on the electrical properties of the nanocomposites—over the high-k polymer nanocomposites prepared by the conventional methods.
简历 黄兴溢,上海交通大学高分子科学与工程系副研究员,2008年博士毕业于上海交通大学电气材料与绝缘研究中心。2009年起至今在上海交通大学高分子科学与工程系任助理研究员,副研究员。2011年-2013年早稻田大学Toshikatsu Tanaka研究室任访问学者、联合研究员。近3年来以第一作者或通信作者在Advanced Materials,Advanced Functional Materials,Chemistry of Materials,IEEE Trans 等杂志发表论文约30篇。主演研究方向为新颖结构的介电聚合物纳米复合储能材料以及导热绝缘聚合物复合材料。
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