1.8 Imaging and analytical methods for interactions between bio-adhesives and porous substrates
- Faisal Zeeshan
- Postdoc,
- Sveriges lantbruksuniversitet
- Co-author(s): Prof. Stergios Adamopoulos, Dr. Rafail Papadakis and Amanda Kaarna
- Supervisor (PhD-students/postdocs): Prof. Stergios Adamopoulos
- Conventional wood adhesives are predominantly fossil-based and provide high adhesive strength, excellent thermal stability, low initial viscosity, and strong moisture resistance. However, the transition toward sustainable materials requires the replacement of these fossil-derived systems with renewable, recyclable bio-based alternatives. To support this transition, the BioGlue-Centre was established through collaboration between three universities and twelve industrial partners from the furniture, construction, and packaging sectors. Adhesive penetration in wood substrates has been extensively investigated for conventional systems across multiple length scales, from macroscopic structures to cell walls. However, traditional microscopy techniques are destructive to both adhesive and substrate, limiting their applicability for comprehensive structural analysis. While X-ray computed tomography (XCT) enables non-destructive evaluation, routine laboratory systems alone may not provide sufficient resolution or contrast for detailed multiscale characterization. XCT measurements were conducted both at laboratory scale and at the ForMAX beamline, enabling complementary multiscale imaging and high-resolution three-dimensional (3D) visualization. Particular focus was placed on surface and interfacial adhesion, substrate porosity, adhesive curing behavior, stability, and the influence of varying humidity conditions. this research addresses the urgent need for defossilisation in the furniture, construction, and packaging sectors by accelerating the identification and implementation of sustainable bio-based alternatives to the predominantly fossil-based adhesives currently in use.
- Time of presentation: 11.50