通过加入粘土纳米填料来提高高密度聚乙烯的介电性能

拉迪 ·莫

摘要

聚合物纳米复合材料已被用于各种重要的工业应用。采用0%、2%、6%、10%、10%、15%不同浓度粘土纳米填料
制备了钠蒙脱石纳米填料组成的高密度聚乙烯。通过扫描电子显微镜对其形貌进行了优化和表征，显示了聚合物纳米复合材
料的形成。测定了所制备样品的热稳定性和介电性能。热重分析结果表明，聚合物纳米复合材料的热稳定性高于基质聚合
物。研究表明，与碱性聚合物相比，聚合物纳米复合材料具有非常不同的介电特性。粘土-纳米填料的加入提高了介电击穿
强度。介电常数(εr)和耗散因子(Tanδ)研究在频率范围200Hz2MHz在室温下表明增强已经发生在εr和Tanδ高物材料的添加与纯
材料相比。

关键词

聚合物纳米复合材料；高密度聚乙烯；介电击穿；介电常数；耗散因子

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