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/
