Multiscale Structural Modulation of Anisotropic Graphene Framework for Polymer Composites Achieving Highly Efficient Thermal Energy Management.
junction thermal resistance
multiscale structural modulation
phase change composite
thermal interface material
vertically aligned graphene
Journal
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
ISSN: 2198-3844
Titre abrégé: Adv Sci (Weinh)
Pays: Germany
ID NLM: 101664569
Informations de publication
Date de publication:
Apr 2021
Apr 2021
Historique:
received:
02
10
2020
revised:
23
11
2020
entrez:
15
4
2021
pubmed:
16
4
2021
medline:
16
4
2021
Statut:
epublish
Résumé
Graphene is usually embedded into polymer matrices for the development of thermally conductive composites, preferably forming an interconnected and anisotropic framework. Currently, the directional self-assembly of exfoliated graphene sheets is demonstrated to be the most effective way to synthesize anisotropic graphene frameworks. However, achieving a thermal conductivity enhancement (TCE) over 1500% with per 1 vol% graphene content in polymer matrices remains challenging, due to the high junction thermal resistance between the adjacent graphene sheets within the self-assembled graphene framework. Here, a multiscale structural modulation strategy for obtaining highly ordered structure of graphene framework and simultaneously reducing the junction thermal resistance is demonstrated. The resultant anisotropic framework contributes to the polymer composites with a record-high thermal conductivity of 56.8-62.4 W m
Identifiants
pubmed: 33854896
doi: 10.1002/advs.202003734
pii: ADVS2308
pmc: PMC8025029
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
2003734Informations de copyright
© 2021 The Authors. Advanced Science published by Wiley‐VCH GmbH.
Déclaration de conflit d'intérêts
The authors declare no conflict of interest.
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