使用介电光谱法阐明石墨烯纳米片（GNP）/ 水泥复合材料中的传导机制

加里 德·, 吉多 ·豪
西班牙工程系

摘要

了解控制多功能水泥材料导电性能的机制对于开发旨在提高智能建筑和基础设施的能源效率、安全性和结
构性能的新应用至关重要。研究人员已经提出了许多填料来增加混凝土的导电性。但是，所涉及的过程仍然不完全
清楚。在目前的工作中，我们研究了石墨烯纳米片（1wt%）对水泥复合材料（OPC/GNPs）的电性能的影响。我们
发现复合材料中体积电阻率的降低与电荷传输性能的增强有关。此外，介电特性的研究表明，对传导的主要贡献是
水通过多孔网络扩散导致离子传导性。最后，结果支持OPC/GNP中直流电流的增加是由于由石墨烯纳米片引起的
孔细化。

关键词

导电混凝土；多功能复合材料；导电填料；石墨烯纳米片；介电性能；电性能

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