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The enhanced thermal transport properties of a heat spreader assembled using non-covalent functionalized graphene

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Abstract

Though graphene paper consisting of layer-by-layer stacked graphene nanosheets (GNs) has been widely used as a heat spreader due to the high in-plane thermal conductivity, the drawback of graphene paper is that it shows low through-plane thermal conductivity at the same time. In this study, polyamine-functionalized perylene bisimide derivative (APBI)/graphene nanosheet hybrid paper (AGP) samples with a “brick-and-mortar” structure were fabricated via the noncovalent functionalization of GNs and APBI. APBI can not only greatly improve the through-plane thermal transport but it also improves the mechanical properties of AGP. The through-plane thermal conductivity of AGP reaches 6.67 W m−1 K−1 with 42.36 wt% APBI and the tensile strength of AGP reaches 47.9 MPa with 14.22 wt% APBI. AGP, with both good thermal transport properties and mechanical properties, is expected to be used for thermal management applications as a heat spreader in industry.

Graphical abstract: The enhanced thermal transport properties of a heat spreader assembled using non-covalent functionalized graphene

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Supplementary files

Article information


Submitted
23 Feb 2020
Accepted
08 May 2020
First published
11 May 2020

New J. Chem., 2020, Advance Article
Article type
Paper

The enhanced thermal transport properties of a heat spreader assembled using non-covalent functionalized graphene

L. Ren, M. Wang, Z. Wei, J. Cheng, K. Liu, L. Pan, L. Lao, S. Lu and J. Yu, New J. Chem., 2020, Advance Article , DOI: 10.1039/D0NJ00936A

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