Improved Thermal Properties of Three-Dimensional Graphene Network Filled Polymer Composites
Journal article, 2021

This paper presents the improved thermal property of three-dimensional (3D) graphene network modified polydimethylsiloxane (PDMS) composites. It shows that with a 2 wt.% loading of graphene foams (GF), the thermal conductivity of GF/PDMS composite was successfully increased from 0.19 W/mK to 0.42 W/mK, which is 2.2 times higher than that of neat PDMS. However, if GF was transformed into graphene sheets (GS) by sonication, the thermal conductivity of GS/PDMS was decreased to 0.28 W/mK. The remarkable improvement of the thermal properties is attributed to the 3D interconnected graphene network in GF, which form continuous heat transfer networks. Furthermore, the finite element analysis was conducted to evaluate the effect of GFs in composites, where some parameters such as thickness and thermal conductivity were analyzed and discussed. Our results indicate that the continuous 3D GFs holds great potential as fillers to improve the thermal property of polymer materials.

thermal properties

composites

3D network

Graphene

Author

Yong Zhang

Shanghai University

Fei Yang

Shanghai University

Chen Yu

Shanghai University

Ziyu Niu

Shanghai University

Pei Lu

Shanghai University

Y. Zhang

Shanghai University

Zhili Hu

Nanjing University of Aeronautics and Astronautics

Johan Liu

Shanghai University

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems Laboratory

Journal of Electronic Materials

0361-5235 (ISSN)

Vol. In Press

Subject Categories

Polymer Chemistry

Textile, Rubber and Polymeric Materials

Composite Science and Engineering

DOI

10.1007/s11664-021-09311-x

More information

Latest update

12/2/2021