Background: The addition of nanofillers to polymers for enhanced performance is delivering more interesting applications for aerospace, aeronautic industries, and other numerous nanotechnical applications.

Objective: The aim was, therefore, to examine the role of graphene nanopowder on the thermal stability and conductivity of the poly(vinyl alcohol)/poly(vinyl pyrrolidone) (PVA/PVP) polymer nanocomposites.

Methods: In this work, graphene nanofillers were incorporated into the PVA/PVP polymer blended by solution mixing for the preparation of nanocomposite films.

Results: Results showed that increasing graphene ratio improved thermal conductivity up to 330%, moreover enhancing hardness shore A up to 16.3% compared to pure PVA/PVP blend polymer. TGA analysis confirmed that the PVA/PVP and graphene network showed good thermal stability.

Conclusion: From the present findings, it is proved that PVA/PVP blends have profound effects on thermal stability that cannot be attained by using individual counterparts. The property of the nanocomposite depends on the host blend, morphology, and interfacial characteristics.

背景：在聚合物中添加纳米填料以增强性能，为航空航天，航空工业以及其他众多纳米技术应用提供了更多有趣的应用。

目的：因此，目的是研究石墨烯纳米粉对聚乙烯醇/聚乙烯吡咯烷酮（PVA / PVP）聚合物纳米复合材料的热稳定性和导电性的作用。

方法：在这项工作中，将石墨烯纳米填料掺入通过溶液混合共混的PVA / PVP聚合物中，以制备纳米复合膜。

结果：结果表明，与纯PVA / PVP共混聚合物相比，增加石墨烯比率可将导热率提高至330％，并将硬度肖氏硬度A提高至16.3％。TGA分析证实，PVA / PVP和石墨烯网络显示出良好的热稳定性。

结论：从目前的发现，可以证明PVA / PVP共混物对热稳定性具有深远的影响，而使用单独的对应物则无法实现。纳米复合材料的性质取决于主体混合物，形态和界面特性。