As a two-dimensional material, graphene has attracted increasing attention as heat dissipation material owing to its excellent thermal transport property. In this work, we fabricated sisal nanocrystalline cellulose/functionalized graphene papers (NPGs) with high thermal conductivity by vacuum-assisted self-assembly method. The papers exhibit in-plane thermal conductivity as high as 21.05 W m−1 K−1 with a thermal conductivity enhancement of 403% from the pure cellulose paper. The good thermal transport properties of NPGs are attributed to the strong hydrogen-bonding interaction between nanocrystalline cellulose and functionalized graphene and the well alignment structure of NPGs.
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机译:作为二维材料,石墨烯由于其优异的热传递性能而作为散热材料受到越来越多的关注。在这项工作中,我们通过真空辅助自组装方法制备了具有高导热率的剑麻纳米晶纤维素/功能化石墨烯纸(NPG)。这些纸的面内导热率高达21.05 W m -1 sup> K -1 sup>,与纯纤维素纸相比,其导热率提高了403%。 NPG的良好传热性能归因于纳米晶纤维素与功能化石墨烯之间的强氢键相互作用以及NPG的良好排列结构。
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