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Investigation of dielectric properties of polymer composites with kaolin

机译:高岭土聚合物复合材料介电性能的研究

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摘要

Thermostable nanocomposites based on interpenetrating polymer network kaolin/cyanate ester (BADCy), derived from kaolin, bisphenol A dicyanate, and doped by 1–5 wt% KH550-modified kaolin nanoparticles, were synthesized and characterized using a dielectric strength tester, scanning electron microscope (SEM), dynamic mechanical analysis, thermogravimetric analysis techniques. A suitable addition of kaolin can enhance the mechanical properties, dielectric properties as well as reduce the dielectric loss of kaolin/BADCy copolymer. SEM analysis shows distinct characteristics of ductile fracture of the blends. In addition, the kaolin/BADCy nanocomposites has a better thermal stability compared with BADCy resin with the increasing of kaolin content. The moisture absorption increases linearly with the square root of time, and it follows the Fick’s second law. All these changes in properties are closely correlated to the kaolin/BADCy nanocomposites, which could form an interaction interface structure in the system.
机译:基于介电聚合物高岭土/氰酸酯(BADCy)互穿的热稳定纳米复合材料,它是由高岭土,双酚A二氰酸酯衍生并掺杂有1-5 wt%KH550改性的高岭土纳米粒子,并使用介电强度测试仪,扫描电子显微镜表征的(SEM),动态力学分析,热重分析技术。适当添加高岭土可以增强机械性能,介电性能以及降低高岭土/ BADCy共聚物的介电损耗。 SEM分析显示了共混物的韧性断裂的明显特征。另外,随着高岭土含量的增加,与BADCy树脂相比,高岭土/ BADCy纳米复合材料具有更好的热稳定性。水分吸收随时间的平方根线性增加,并且遵循菲克第二定律。所有这些性质变化都与高岭土/ BADCy纳米复合材料密切相关,后者可能在系统中形成相互作用的界面结构。

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  • 来源
    《Journal of materials science》 |2018年第14期|12360-12365|共6页
  • 作者单位
  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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