Synergistic interfacial effects of ionic liquids as sizing agents and surface modified carbon fibers

Daniel J. Eyckens; Linden Servinis; Christina Scheffler; Enrico Wölfel; Baris Demir; Tiffany R. Walsh; Luke C. Henderson

doi:10.1039/C7TA10516A

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Synergistic interfacial effects of ionic liquids as sizing agents and surface modified carbon fibers†

Daniel J. Eyckens,^a Linden Servinis,^a Christina Scheffler,

^b Enrico Wölfel,^b Baris Demir,

^a Tiffany R. Walsh

*^a and Luke C. Henderson

*^a

Author affiliations

* Corresponding authors

^a Deakin University, Institute for Frontier Materials, Waurn Ponds, Victoria 3216, Australia
E-mail: luke.henderson@deakin.edu.au, tiffany.walsh@deakin.edu.au

^b Leibniz-Institut für Polymerforschung Dresden e.V., Department Composite Materials, Fiber Modification Group, Hohe Straße 6, 01069 Dresden, Germany

Abstract

This paper presents investigations into the use of ionic liquids as sizing agents for carbon fibers in epoxy matrices. A variety of aqueous ionic liquid solutions was employed as the sizing bath, at concentrations relevant to industry standards. Of the ionic liquids used, the widely available and inexpensive BmimCl was found to give the optimal fiber-to-matrix adhesion improvements of 250% relative to control fibers in epoxy, and 66% improvement in polypropylene. Molecular dynamics simulations suggest that the diffusion of the ionic liquids into the polymer phase accompanied by self-agglomeration generates a plasticised interphase resulting in high shear tolerant materials.

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Article information

DOI: https://doi.org/10.1039/C7TA10516A
Article type: Paper
Submitted: 01 Dec 2017
Accepted: 13 Feb 2018
First published: 13 Feb 2018

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J. Mater. Chem. A, 2018,6, 4504-4514

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Synergistic interfacial effects of ionic liquids as sizing agents and surface modified carbon fibers

D. J. Eyckens, L. Servinis, C. Scheffler, E. Wölfel, B. Demir, T. R. Walsh and L. C. Henderson, J. Mater. Chem. A, 2018, 6, 4504 DOI: 10.1039/C7TA10516A

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Journal of Materials Chemistry A

Synergistic interfacial effects of ionic liquids as sizing agents and surface modified carbon fibers†

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Synergistic interfacial effects of ionic liquids as sizing agents and surface modified carbon fibers

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