Dimensional stability of wood modified by citric acid using different catalysts

Drvna Industrija

关键词: dimensional stability of wood;    beech wood;    fir wood;    chemical modification;    citric acid;    NaH2PO2;    NaH2PO4;   

DOI  :  

来源: DOAJ

【 摘 要 】

Small wooden samples of fir (Abies alba Mill.) and beech (Fagus sylvatica L.) were chemically modified by citric acid (CA) as non-formaldehyde cross-linking system reagent and cured by convection heating at three different temperature regimes. Two different CA solutions were used, one with NaH2PO2 and the other with NaH2PO4 as a catalyst. The dimensional stability of the modified wood was determined by the anti-swelling efficiency (ASE) using the water soak/oven dry method. Almost equally large improvement of dimensional stability of wood was attained using NaH2PO4 as when NaH2PO2 was applied as a catalyst.

【 授权许可】

Unknown