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Enhanced Thermal Transport Properties of Heat Spreader Assembled by Non-covalent Functionalized Graphene

Abstract

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

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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, Accepted Manuscript
Article type
Paper

Enhanced Thermal Transport Properties of Heat Spreader Assembled by 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, Accepted Manuscript , DOI: 10.1039/D0NJ00936A

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