Effect of covalent functionalisation on thermal transport across graphene-polymer interfaces
Data(s) |
07/05/2015
|
---|---|
Resumo |
This paper is concerned with the interfacial thermal resistance for polymer composites reinforced by various covalently functionalised graphene. By using molecular dynamics simulations, the obtained results show that the covalent functionalisation in graphene plays a significant role in reducing the graphene-paraffin interfacial thermal resistance. This reduction is dependent on the coverage and type of functional groups. Among the various functional groups, butyl is found to be the most effective in reducing the interfacial thermal resistance, followed by methyl, phenyl and formyl. The other functional groups under consideration such as carboxyl, hydroxyl and amines are found to produce negligible reduction in the interfacial thermal resistance. For multilayer graphene with a layer number up to four, the interfacial thermal resistance is insensitive to the layer number. The effects of the different functional groups and the layer number on the interfacial thermal resistance are also elaborated using the vibrational density of states of the graphene and the paraffin matrix. The present findings provide useful guidelines in the application of functionalised graphene for practical thermal management. |
Formato |
application/pdf |
Identificador | |
Publicador |
American Chemical Society |
Relação |
http://eprints.qut.edu.au/85440/1/accepted_version.pdf DOI:10.1021/acs.jpcc.5b02920 Wang, Y., Zhan, H.F., Xiang, Y., Yang, C., Wang, C.M., & Zhang, Y.Y. (2015) Effect of covalent functionalisation on thermal transport across graphene-polymer interfaces. The Journal of Physical Chemistry Part C, 119(22), pp. 12731-12738. |
Direitos |
Copyright © 2015 American Chemical Society |
Fonte |
School of Chemistry, Physics & Mechanical Engineering; Science & Engineering Faculty |
Palavras-Chave | #091300 MECHANICAL ENGINEERING #091307 Numerical Modelling and Mechanical Characterisation #100708 Nanomaterials #molecular dynamics #paraffin #functional group #interfacial thermal resistance |
Tipo |
Journal Article |