Tailoring the fibre-to-matrix interface using click chemistry on carbon fibre surfaces

Linden Servinis; Kathleen M. Beggs; Thomas R. Gengenbach; Egan H. Doeven; Paul S. Francis; Bronwyn L. Fox; Jennifer M. Pringle; Cristina Pozo-Gonzalo; Tiffany R. Walsh; Luke C. Henderson

doi:10.1039/C7TA00922D

Tailoring the fibre-to-matrix interface using click chemistry on carbon fibre surfaces†

Linden Servinis,^a Kathleen M. Beggs,^a Thomas R. Gengenbach,^b Egan H. Doeven,^c Paul S. Francis,

^d Bronwyn L. Fox,^e Jennifer M. Pringle,

^a Cristina Pozo-Gonzalo,^a Tiffany R. Walsh

^a and Luke C. Henderson

*^a

Author affiliations

* Corresponding authors

^a Institute for Frontier Materials, Deakin University, Geelong, VIC 3216, Australia
E-mail: luke.henderson@deakin.edu.au

^b CSIRO Science and Engineering, Clayton, Australia

^c Centre for Regional and Rural Futures (CeRRF), Deakin University, Waurn Ponds Campus, Geelong, Victoria, Australia

^d School of Life and Environmental Sciences, Faculty of Science, Engineering and Built Environment, Deakin University, Geelong, Victoria, Australia

^e Swinburne University of Technology, Factory of the Future, Hawthorne, Victoria, Australia

Abstract

A convenient and effective strategy to control the surface chemistry of carbon fibres is presented, comprising electro-chemical reduction of aryl diazonium salts onto the surface, followed by ‘click chemistry’ to tether the desired surface characteristic of choice. The power of this approach was demonstrated by engineering a small-molecule interface between carbon fibre and an epoxy matrix improving interfacial shear strength by up to 220%, relative to unmodified control fibres. The techniques used in this work do not impede the fibre performance in tensile strength or Young's modulus. This work provides a platform upon which any carbon fibre-to-resin interface can be easily and rapidly designed and implemented.

Journal of Materials Chemistry A

Tailoring the fibre-to-matrix interface using click chemistry on carbon fibre surfaces†

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Tailoring the fibre-to-matrix interface using click chemistry on carbon fibre surfaces

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