TY - JOUR
T1 - Multifunctional electromagnetic interference shielding 3D reduced graphene oxide/vertical edge-rich graphene/epoxy nanocomposites with remarkable thermal management performance
AU - Han, Liyuan
AU - Li, Kezhi
AU - Fu, Yanqin
AU - Yin, Xuemin
AU - Jiao, Yameng
AU - Song, Qiang
N1 - Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/5/3
Y1 - 2022/5/3
N2 - Owing to the growing electromagnetic interference (EMI) shielding and heat removal issues in modern electronics, polymer composites with remarkable EMI shielding performance and thermal management capability have attached much attention. In this work, vertical edge-rich graphene (ERG) were in-situ grown on the reduced graphene oxide (rGO) aerogel skeleton, constructing a unique 3D hybridized carbon nanostructures with covalent bonding, which were applied to modify epoxy resin for EMI shielding and thermal management. Impressively, the obtained rGO-ERG/epoxy nanocomposites possessed an improved EMI shielding performance of 45.9 dB in the X-band, which mainly attributes to the structural defects and strong charge polarization ability of ERG. Furthermore, theoretical models qualitatively prove that the construction of phonon-matching 3D rGO-ERG networks results in efficient phonon transport, providing an enhanced thermal conductivity of 1.96 W m−1 K−1. Meanwhile, the 3D hybrid structure from total 2D ingredients which exhibits a remarkable thermal management capability is further corroborated. More importantly, this strategy endows rGO-ERG/epoxy nanocomposites comprehensive functions, providing a bright application prospect for next-generation electronic packing.
AB - Owing to the growing electromagnetic interference (EMI) shielding and heat removal issues in modern electronics, polymer composites with remarkable EMI shielding performance and thermal management capability have attached much attention. In this work, vertical edge-rich graphene (ERG) were in-situ grown on the reduced graphene oxide (rGO) aerogel skeleton, constructing a unique 3D hybridized carbon nanostructures with covalent bonding, which were applied to modify epoxy resin for EMI shielding and thermal management. Impressively, the obtained rGO-ERG/epoxy nanocomposites possessed an improved EMI shielding performance of 45.9 dB in the X-band, which mainly attributes to the structural defects and strong charge polarization ability of ERG. Furthermore, theoretical models qualitatively prove that the construction of phonon-matching 3D rGO-ERG networks results in efficient phonon transport, providing an enhanced thermal conductivity of 1.96 W m−1 K−1. Meanwhile, the 3D hybrid structure from total 2D ingredients which exhibits a remarkable thermal management capability is further corroborated. More importantly, this strategy endows rGO-ERG/epoxy nanocomposites comprehensive functions, providing a bright application prospect for next-generation electronic packing.
KW - Electromagnetic interference shielding (EMI)
KW - Graphene and other 2D-materials
KW - Polymer-matrix composites (PMCs)
KW - Thermal properties
UR - http://www.scopus.com/inward/record.url?scp=85126942314&partnerID=8YFLogxK
U2 - 10.1016/j.compscitech.2022.109407
DO - 10.1016/j.compscitech.2022.109407
M3 - 文章
AN - SCOPUS:85126942314
SN - 0266-3538
VL - 222
JO - Composites Science and Technology
JF - Composites Science and Technology
M1 - 109407
ER -