Comparison of the properties of flax shives based particleboards prepared using binders of bio-based lignin and partially bio-based epoxy resin

EIn order to reduce formaldehyde emissions, an experimental investigation of lightweight flax shives based particleboards, prepared using two different binders: bio-based lignin (lignosulfonate) and partially epoxy resin (greenpoxy 56), was undertaken. The particleboards (with a target density 500 kg/m³), were elaborated by thermo-compression process 20 wt% binder content. directly valorised as they had no pre-treatment, in qualify their potential raw material. Bending, compression fire resistance tests showed that the mechanical flame performances lignosulfonate-based high compared those greenpoxy56 panels. Nevertheless, latter found have interesting dimensional stability after water immersion good insulating properties. Moreover, both lignosulfonate greenpoxy 56 met minimum EN 15197 requirements for non-load bearing flaxboards use dry conditions (Type FB2). Such results illustrated competitiveness studied bio-sourced structures, urea-formaldehyde