Carbon Fibers are typically coated in a 'sizing' as the final stage of manufacture which serves to protect the fibers from mechanical damage during handling and also serves to enhance the adhesion between the fibers and the reinforcing matrix. The optimisation of sizing and resin is typically done empirically or through broad 'compatibility' classifications which are provided by the fiber manufacturer or sizing supplier. The ultimate fate of the sizing in the composite, i.e. whether it remains near the fiber surface or diffuses into the matrix, is largely unknown and difficult to determine. In this work we develop a means to rapidly grow acrylate-derived polymers from the carbon fiber surface which serves as a covalently bound sizing. The process and effect on interfacial adhesion will be presented.

<i>In situ</i> polymerisation on the carbon fiber surface for enhanced interfacial adhesion

2019 Spring National Meeting

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In situ polymerisation on the carbon fiber surface for enhanced interfacial adhesion