The single fibre tensile test data showing the effect of acetone on flax fibres. This document shows the effect of acetone on the tensile properties of single flax fibres. Acetone can be used to extract lipophilic from natural fibre surfaces and as a solvent for surface modification of fibres. For instance, the cellulose acetate/acetone solution can be used for interfacial toughening of flax-epoxy composites: https://doi.org/10.1016/j.compositesa.2021.106628 However, it is essential to minimise the dip-coating time of the fabrics in acetone, to e.g., 5 seconds. The main reason is to avoid excessive hemicellulose and pectin extraction from fibres that act as a matrix and binder within the flax fibre microstructure. This document is provided as complementary data to the previously published article in the Journal of Composites Part A (published by Elsevier) by Javanshour et al. (Tampere University, Finland) and funded by FibreNet MSCA-ITN (European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 764713-FibreNet): https://doi.org/10.1016/j.compositesa.2021.106628

2023