Imaging and analytical methods for interactions between bio-adhesives and porous substrates (wood, paper)

The goal of the experiment is to study interactions between bio-based adhesives (based on lignin-starch) and porous substrates (wood, paper).  X-ray Computed Tomography (nXCT) of specimens of thicknesses 50 μm with a bond line of 2 μm-thin will be used to study adhesive penetration at multiscale levels in relation to (surface and interfacial adhesion, porous substrate structure, adhesive curing, adhesive stability and changed humidity) for bio-adhesives coupled with three-dimensional (3D) visualization analysis. Small-Angle X-ray Scattering (SAXS) technique of specimens of thicknesses 50 μm with a bond line of 2 μm-thin will be used to study the nanoscale structural organization of the adhesive within the porous substrate. WAXS will be used to study the changes in the adhesive’s molecular or crystalline structure upon interaction with the substrate and possible phase separation or alignment effects influenced by the substrate’s porosity.https://www.slu.se/institutioner/skogens-biomaterial-teknologi/bioglue-centre/