Processing of epoxy/ graphene nanocomposites

Wei, Jiacheng, Vo, Thuc and Inam, Fawad (2016) Processing of epoxy/ graphene nanocomposites. In: 6th Chemical Nanoscience Symposium (CNSN-6), 17 March 2016, Newcastle upon Tyne.

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Abstract

Graphene can significantly improve physical properties of epoxy at extremely low loading when incorporated appropriately. However, in practical terms, graphene is not suitable to disperse in epoxy just by simple mixing, which is due to graphene’s pronounced tendency to reaggregate in the matrix due to the strong van der Waals force between separately dispersed graphene sheets. In order to substitute traditional epoxy reinforcements with graphene, there are still some issues like dispersion, homogenization, and reaggregation. Therefore, the preparation of epoxy/graphene nanocomposites affects strongly to the final properties of nanocomposites. In this work, graphene bundles have been dispersed in two-component epoxy system by bath sonication. Dispersion state and reaggregation behaviour of graphene in this system have been studied. Light transmittance in ultraviolet-visible spectroscopy has been used to quantify the reaggregation by a series of controlled experiments.

Item Type: Conference or Workshop Item (Poster)
Subjects: F200 Materials Science
H300 Mechanical Engineering
H800 Chemical, Process and Energy Engineering
J400 Polymers and Textiles
J500 Materials Technology not otherwise specified
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Related URLs:
Depositing User: Fawad Inam
Date Deposited: 30 Jan 2017 12:01
Last Modified: 09 May 2017 18:04
URI: http://nrl.northumbria.ac.uk/id/eprint/29370

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