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Silane coupling in carbon fibre-reinforced polyester resin

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Abstract

Previous work has suggested that organosilanes applied to carbon fibres do not improve the interlaminar shear properties of reinforced plastics containing these fibres. However, by first oxidising the fibres in an aqueous environment, hydroxyl groups can be put onto the surface and the silanes are then able to form silanol bonds to the fibre surface as they do in glass fibre-reinforced plastics.

This has been shown to occur in polyester resins containing carbon fibres that were first boiled in 70% nitric acid and then coated with two epoxysilanes. Tensile and interlaminar shear properties of these composites are presented, together with Stereoscan studies of the fracture surfaces.

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Authors and Affiliations

  1. Applied Sciences Laboratory, University of Sussex, Brighton, UK

    B. Harris & P. W. R. Beaumont

  2. Department of Materials Engineering, Technion, Haifa, Israel

    A. Rosen

Authors
  1. B. Harris
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  2. P. W. R. Beaumont
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  3. A. Rosen
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Harris, B., Beaumont, P.W.R. & Rosen, A. Silane coupling in carbon fibre-reinforced polyester resin. J Mater Sci 4, 432–438 (1969). https://doi.org/10.1007/BF00549709

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  • DOI: https://doi.org/10.1007/BF00549709

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