The current work reviews the importance of engineering the interface between nanofillers and polymers to achieve unique dielectric properties in nanocomposites. Although many improved dielectric properties of nanocomposites have been attributed to the presence of the interface, the interface can also be an attractive location for water to accumulate, which may otherwise jeopardize the dielectric properties of nanocomposites. Consequently, the use of surface functionalization and calcination techniques in removing water-related moieties on nanofillers is highlighted. Specifically, the effects of nanofiller calcination on two exemplar oxide-based nanocomposite systems, namely, silica-based nanocomposites and zirconia-based nanocomposites, are discussed. Evidence suggests that nanofiller calcination influences not only the water-related chemistry, but also the structure of oxide-based nanofillers. Significantly, for detailed interfacial chemistry of nanofillers to become relevant in engineering the dielectric properties of nanocomposites, effective removal of interfacial water on nanofillers is crucial.

中文翻译：

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有效去除界面水的纳米复合材料工程介电性能研究进展


目前的工作回顾了设计纳米填料和聚合物之间的界面以在纳米复合材料中实现独特介电性能的重要性。尽管纳米复合材料介电性能的许多改进归因于界面的存在，但界面也可能是水积聚的有吸引力的位置，否则可能会危害纳米复合材料的介电性能。因此，强调使用表面功能化和煅烧技术来去除纳米填料上与水相关的部分。具体来说，讨论了纳米填料煅烧对两种示例性氧化物基纳米复合材料体系（即二氧化硅基纳米复合材料和氧化锆基纳米复合材料）的影响。有证据表明，纳米填料的煅烧不仅影响与水相关的化学性质，而且影响氧化物基纳米填料的结构。值得注意的是，为了使纳米填料的详细界面化学与纳米复合材料的介电性能工程相关，有效去除纳米填料上的界面水至关重要。