caa a22 4500 378887319 CHVBK 20180305123445.0 cr unu---uuuuu 161128e20040205xx s 000 0 eng 10.1515/HF.2004.005 doi (NATIONALLICENCE)gruyter-10.1515/HF.2004.005 Moisture adsorption characteristics of copper-ethanolamine (Cu-EA) treated Southern yellow pine (Pinus spp.) [Elektronische Daten] [J. Cao, D. P. Kamdem] Moisture adsorption isotherms were determined for untreated and copper-ethanolamine (Cu-EA) treated wood at different copper retention levels. The Cu-EA treatment reduces the water vapor accessibility in wood because copper has occupied some of the adsorption sites for moisture during the treatment. The percentage of adsorption sites occupied by copper was evaluated by M t/M u, which is the ratio of equilibrium moisture content for treated wood to untreated wood. The results show that, within the copper retention range used in this study, the M t/M u value decreases linearly at lower temperatures (4 and 15 °C) or logarithmically at higher temperatures (30 and 40 °C) with the increase of copper retention, suggesting that the percentage of adsorption sites occupied by copper (P) increases linearly or logarithmically with the copper retention in Cu-EA treated wood. P decreases with the increase of relative humidity. The reason is that more adsorption sites become available for moisture at higher relative humidity. It has also been found that the influence of Cu-EA treatment on hydrated water (M h) is more significant than that on dissolved water (M s). Copyright © 2004 by Walter de Gruyter GmbH & Co. KG Timber & wood processing nationallicence Biotechnology nationallicence Materials science nationallicence Cao J. aut Kamdem D. P. aut Holzforschung Walter de Gruyter 58/1(2004-02-05), 32-38 0018-3830 58:1<32 2004 58 hfsg https://doi.org/10.1515/HF.2004.005 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1515/HF.2004.005 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cao J. aut NATIONALLICENCE 700 1- Kamdem D. P. aut NATIONALLICENCE 773 0- Holzforschung Walter de Gruyter 58/1(2004-02-05), 32-38 0018-3830 58:1<32 2004 58 hfsg CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter