2010/07/05 by P. Hass, Hass, P., F. K. Wittel +9
Agricultural and Biological Sciences · Chemistry · Engineering · Physics and Astronomy · #Plant Surface Properties and Treatments #Plant-Derived Bioactive Compounds #Wood Treatment and Properties #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.1007.0762
22 pages
arxiv created 2010/07/05 · arxiv updated 2010/07/07
A study with synchrotron radiation X-ray tomographic microscopy (SRXTM) of PUR, PVAC, and UF adhesive bond lines in beech wood, bonded under various growth ring angles is presented. After determining the hardening characteristics of the adhesives, we evaluate the bond line morphologies, and the adhesive penetration into the wood structure. We find distinct bond line imperfections for the different adhesive systems. To describe the adhesive distribution inside the bond line we propose the saturation of the pore space instead of the commonly used maximum penetration depth. The results are the basis for a penetration model of hardening fluids into hardwood (part II).