Photodegradation and weathering effects on timber surface moisture profiles as studied using dynamic vapour sorption

被引:22
作者
Sharratt, Victoria [1 ]
Hill, Callum A. S. [1 ]
Zaihan, Jalaludin [1 ]
Kint, Darwin P. R. [2 ]
机构
[1] Edinburgh Napier Univ, Ctr Timber Engn, Edinburgh EH10 5DT, Midlothian, Scotland
[2] AkzoNobel Decorat Paints, Slough SL2 5DS, Berks, England
关键词
Photodegradation; Weathering; Wood surfaces; Pinus sylvestris; Dynamic vapour sorption; Sorption isotherms;
D O I
10.1016/j.polymdegradstab.2010.07.011
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The moisture sorption kinetic profiles of Scots pine (Pinus sylvestris) earlywood and latewood were studied using a Dynamic Vapour Sorption apparatus and the equilibrium isotherms determined. The samples were chosen to give an insight to the effects that photodegradation and weathering have on the moisture behaviour of the surface layers of timber. Samples were subjected to indoor and outdoor exposure regimes. Significant differences were found between the sorption isotherms of exposed and unexposed wood, as well as with the sorption kinetics profiles. The reasons for these differences are discussed. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2659 / 2662
页数:4
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