Effects of surfactants on the properties of epoxy/graphene nanocomposites

Wei, Jiacheng, Saharudin, Mohd, Vo, Thuc and Inam, Fawad (2018) Effects of surfactants on the properties of epoxy/graphene nanocomposites. Journal of Reinforced Plastics and Composites. ISSN 0731-6844

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Official URL: http://journals.sagepub.com/doi/full/10.1177/07316...

Abstract

Recently, graphene has attracted extensive research interests due to its superior mechanical, electrical and thermal performance. Small loadings of graphene can increase the properties of epoxy significantly. However, because of the large surface area of graphene, it is a challenge to disperse graphene in liquid epoxy. Strong van der Waals force causes reaggregation of graphene in the matrix. As commonly used surfactants, sodium dodecyl sulphate and gum arabic have been used a lot to de-bundle graphene, however, their dispersing efficiencies for graphene in epoxy matrix is unknown. Therefore, to evaluate their dispersing efficiencies, epoxy/graphene nanocomposites had been made and mechanical properties, dynamic mechanical analysis, thermal gravimetric analysis and scanning electron microscopy tests of nanocomposites had been conducted. The results show that the properties of nanocomposites had been enhanced largely after using sodium dodecyl sulphate and gum arabic. Sodium dodecyl sulphate shows higher dispersing effectiveness than gum arabic.

Item Type: Article
Uncontrolled Keywords: Graphene, epoxy, nanocomposites, surfactants, sodium dodecyl sulphate, gum arabic
Subjects: F200 Materials Science
H300 Mechanical Engineering
J400 Polymers and Textiles
J500 Materials Technology not otherwise specified
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Fawad Inam
Date Deposited: 13 Apr 2018 08:32
Last Modified: 13 Apr 2018 08:33
URI: http://nrl.northumbria.ac.uk/id/eprint/33949

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