Biocomposites based on flax short fibres and linseed oil

▶ Linseed oil treatment improves flax short fibres biocomposites hydrophobicity. ▶ Hydrophobic treatment efficiency depends on oil polymerization-oxidation rate. ▶ Fast exothermic drying of linseed oil leads to spontaneous combustion. ▶ Oil/fibre ratio and drying parameters were optimized to ensure process security.