Improved Breakdown Strength and Energy Storage Properties of Core-shell SiO2@ZrO2/maleic anhydridegrafted polypropylene/polypropylene Ternary Composites

2020 IEEE International Conference on High Voltage Engineering and Application (ICHVE) Pub Date : 2020-09-06 DOI:10.1109/ICHVE49031.2020.9279782

Yuxin Zhang, L. Cheng, Yue Ma, Jiang Guo, Wenfeng Liu, Shengtao Li

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引用次数: 2

Abstract

ZrO2 nanoparticles coated with SiO2 layer were successfully synthesized by tetraethoxysilane (TEOS) hy-anhydride grafted polypropylene matrix to prepare nanocomposite samples with different loadings. The preparation and surface treatment of nanoparticles were further confirmed by transmission electron microscope (TEM) and fourier transform infrared spectrometer (FTIR). Dielectric spectrum and breakdown field strength results showed that the energy storage density of SiO2@ZrO2 core-shell nanocomposite with low dielectric coating gets 10.4% higher than the optimal value of PP/PP-MAH composites filled raw ZrO2, and 42.2% higher than that of PP/PP-MAH composites without nano-filler. Apart from experimental results, thermally stimulated depolarization current test (TSDC) indicated that SiO2 shell layer made the trap depth in interaction region deeper, which consequently improved the breakdown field strength.

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提高核壳SiO2@ZrO2/马来酸酐接枝聚丙烯/聚丙烯三元复合材料的击穿强度和储能性能

以四乙氧基硅烷(TEOS)羟基酸酐接枝聚丙烯为基体，成功制备了包覆SiO2的ZrO2纳米颗粒，制备了不同负载的纳米复合材料样品。通过透射电子显微镜(TEM)和傅里叶变换红外光谱仪(FTIR)进一步证实了纳米颗粒的制备和表面处理。介电光谱和击穿场强结果表明，低介电涂层SiO2@ZrO2核壳纳米复合材料的储能密度比原ZrO2填充的PP/PP- mah复合材料的最优值提高了10.4%，比未填充纳米填料的PP/PP- mah复合材料的储能密度提高了42.2%。除实验结果外，热激去极化电流测试(TSDC)结果表明，SiO2壳层使相互作用区域的陷阱深度更深，从而提高了击穿场强。

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2020 IEEE International Conference on High Voltage Engineering and Application (ICHVE)

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