caa a22 4500 46321675X CHVBK 20180405153159.0 cr unu---uuuuu 170326e20070401xx s 000 0 eng 10.1007/s00226-006-0116-3 doi (NATIONALLICENCE)springer-10.1007/s00226-006-0116-3 A NMR study of water distribution in hardwoods at several equilibrium moisture contents [Elektronische Daten] [Giana Almeida, Stéphane Gagné, Roger Hernández] The water state of one tropical (Robinia coccinea) and two temperate (Acer saccharum and Fagus grandifolia) hardwoods was determined at different equilibrium moisture contents (EMC) during desorption at 25°C. NMR technique was used to separate different components of water in wood. The species studied presented different structures, which were apparent on the spin-spin relaxation T2 values. Three different water components were separated: slow T2 (liquid water in vessel elements), medium T2 (liquid water in fiber and parenchyma elements) and fast T2 (bound or cell wall water). The NMR results showed that even at equilibrated conditions a region exists where loss of liquid water and bound water takes place simultaneously. This region will vary according to the wood structure. Finally, liquid water was present at EMC lower than the fiber saturation point, which contradicts the concept of this point when considered as a bulk property of wood. Springer-Verlag, 2006 Almeida Giana Centre de recherche sur le bois (CRB), Département des sciences du bois et de la forêt, Université Laval, G1K 7P4, Québec, QC, Canada aut Gagné Stéphane Département de biochimie et de microbiologie, Université Laval, G1K 7P4, Québec, QC, Canada aut Hernández Roger Centre de recherche sur le bois (CRB), Département des sciences du bois et de la forêt, Université Laval, G1K 7P4, Québec, QC, Canada aut Wood Science and Technology Springer-Verlag 41/4(2007-04-01), 293-307 0043-7719 41:4<293 2007 41 226 https://doi.org/10.1007/s00226-006-0116-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00226-006-0116-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Almeida Giana Centre de recherche sur le bois (CRB), Département des sciences du bois et de la forêt, Université Laval, G1K 7P4, Québec, QC, Canada aut NATIONALLICENCE 700 1- Gagné Stéphane Département de biochimie et de microbiologie, Université Laval, G1K 7P4, Québec, QC, Canada aut NATIONALLICENCE 700 1- Hernández Roger Centre de recherche sur le bois (CRB), Département des sciences du bois et de la forêt, Université Laval, G1K 7P4, Québec, QC, Canada aut NATIONALLICENCE 773 0- Wood Science and Technology Springer-Verlag 41/4(2007-04-01), 293-307 0043-7719 41:4<293 2007 41 226 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer