Radiometric Investigation of Water Vapour Movement in Wood-based Composites by Means of Cold and Thermal Neutrons☆

摘要: Abstract Wood-based composites are industrially produced panels made of resin-blended wood furnish material consolidated by hot pressing. Precise knowledge the physical interrelations, such as heat and mass transfer induced densification curing, inevitable to control process performance final product properties. Neutron radiography is able distinguish between moisture matter movement thus provide quantitative information considering pressing where only models exist. To this end, preliminary experiments were carried out utilising both cold thermal neutrons visualise quantify water vapour within wood-based heated under sealing a simplified mimicry conditions. rather fast was found be feasible in general. The evaluation time-resolved image data maps relative content distribution sample during 9 min time. A presumed wavefront-like confirmed. Hence, results enhance understanding inside furnish. These prove neutron viable method for further comprehensive in-situ investigations composites.