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首页> 外文期刊>Journal of Applied Polymer Science >Correlation between morphology and electrical breakdown strength of the polypropylene/maleic anhydride grafted polypropylene/nano-ZrO2 ternary system
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Correlation between morphology and electrical breakdown strength of the polypropylene/maleic anhydride grafted polypropylene/nano-ZrO2 ternary system

机译：聚丙烯/马来酸酐接枝聚丙烯/纳米ZrO2三元体系的形态与电击穿强度的相关性

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摘要

A ternary system composed of isotactic polypropylene (PP), maleic anhydride grafted polypropylene (PP-g-MAH), and nano-ZrO2 was designed. To investigate the influence of each composition, we systematically designed orthogonal tests with 25 samples with various PP-g-MAH (0-70 wt %) and nano-ZrO2 concentrations (0-5 wt %). Microscopic observation showed that the introduction of PP-g-MAH could distinctively benefit the dispersion of nanoparticles. This can be understood by chemical bonds between PP-g-MAH and the nano-ZrO2 surface, which was evidenced by infrared spectroscopy. Meanwhile, both the crystalline properties and aggregation structures were improved within this ternary system. Macroscopically, a great enhancement of DC breakdown strength (BDS) as high as 43.3% was achieved when the PP-g-MAH concentration was 50 wt % and the nano-ZrO2 concentration was 0.5 wt %. Moreover, the effects of PP-g-MAH and nano-ZrO2 were revealed respectively. The increase of nano-ZrO2 content could cause the first increase and then decrease of BDS. The influence of PP-g-MAH on breakdown strength was obviously shown by the analysis of variance, and the rising PP-g-MAH concentration could lead to the nano-ZrO2 content with the highest BDS shifted to higher loading, indicating that the modified dispersion of nanoparticles played the dominant role in the breakdown performance improvement. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46842.
机译：设计了一种由同位聚丙烯（PP），马来酸酐接枝聚丙烯（PP-G-MAH）组成的三元体系，并设计为纳米-ZRO2。为了探讨每种组合物的影响，我们系统地设计了具有25个样品的正交试验，具有各种PP-G-MAH（0-70wt％）和纳米-ZrO2浓度（0-5wt％）。显微镜观察表明，PP-G-MAH的引入可以独特地利益纳米颗粒的分散体。通过PP-G-MAH和纳米ZrO2表面之间的化学键可以理解，这可以通过红外光谱证明。同时，在该三元系统内改善了结晶性能和聚集结构。宏观上，当PP-G-MAH浓度为50wt％时，实现了高达43.3％的直流击穿强度（BDS）的大大提高，纳米ZrO2浓度为0.5wt％。此外，分别揭示了PP-G-MAH和纳米-ZrO2的效果。纳米ZrO2含量的增加可能导致第一次增加，然后降低Bds。通过方差分析显着显示PP-G-MAH对击穿强度的影响，PP-G-MAH浓度的上升可能导致纳米-ZRO2含量，最高的BDS转移到更高的载荷，表明改性纳米颗粒的分散在击穿性能改善中发挥了显性作用。 （c）2018 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2018,135,46842。

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