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Silica Nanoparticles Treated by Cold Atmospheric-Pressure Plasmas Improve the Dielectric Performance of Organic-Inorganic Nanocomposites

机译:常压等离子体处理的二氧化硅纳米粒子改善有机-无机纳米复合材料的介电性能

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We report on the application of cold atmospheric-pressure plasmas to modify silica nanoparticles to enhance their compatibility with polymer matrices. Thermally nonequilibrium atmospheric-pressure plasma is generated by a high-voltage radio frequency power source operated in the capacitively coupled mode with helium as the working gas. Compared to the pure polymer and the polymer nanocomposites with untreated SiO2, the plasma-treated SiO2-polymer nanocomposites show higher dielectric breakdown strength and extended endurance under a constant electrical stress. These improvements are attributed to the stronger interactions between the SiO2 nanoparticles and the surrounding polymer matrix after the plasma treatment. Ourmethod is generic and can be used in the production of high-performance organic-inorganic functional nanocomposites.
机译:我们报道了冷大气压等离子体在改性二氧化硅纳米颗粒上的应用,以增强其与聚合物基质的相容性。热非平衡大气压等离子体由高压射频电源产生,该高压射频电源以氦气作为工作气体以电容耦合模式工作。与纯聚合物和未经处理的SiO2的聚合物纳米复合材料相比,经等离子体处理的SiO2聚合物纳米复合材料在恒定的电应力下显示出更高的介电击穿强度和持久的耐力。这些改进归因于等离子体处理后,SiO2纳米颗粒与周围的聚合物基体之间的相互作用更强。 Ourmethod是通用的,可用于生产高性能有机-无机功能纳米复合材料。

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