Graphene nanoplatelets (GNP) have excellent properties, such as high mechanical strength and good thermal conductivity, making them interesting nanofiller for their application in powder coatings. In this context, the aim of this study was to evaluate the thermal behavior and the curing kinetics of epoxy powder coatings containing GNP. The coatings were obtained by mixing in a ball mill followed by homogenization in molten state. The GNP were dispersed directly into the epoxy powder. The morphology, thermal stability and curing kinetics of the samples were evaluated. During the curing process, the GNP accelerated the onset of the reaction but ultimately caused steric impediment. From the results, the GNP incorporated to the solid epoxy resin for coatings behaved differently in each stage of the curing process. In general, while the direct dispersion of GNP in powder epoxy by dry mixing methods was not ideal, the thermal properties were improved, with GNP inducing a poor curing state where diffusion phenomena are predominant.

石墨烯纳米片 (GNP) 具有优异的性能，例如高机械强度和良好的导热性，使其成为用于粉末涂料的有趣纳米填料。在此背景下，本研究的目的是评估含有 GNP 的环氧粉末涂料的热行为和固化动力学。通过在球磨机中混合然后在熔融状态下均质化来获得涂层。GNP 直接分散到环氧树脂粉末中。评估了样品的形态、热稳定性和固化动力学。在固化过程中，GNP 加速了反应的开始，但最终导致了空间位阻。从结果来看，掺入涂料用固体环氧树脂中的 GNP 在固化过程的每个阶段表现不同。一般来说，