Drvna industrija, Vol. 60 No. 1, 2009.
Izvorni znanstveni članak
Dimensional stability of wood modified by citric acid using different catalysts
Bogoslav Šefc
; Šumarski fakultet Sveučilišta u Zagrebu, Hrvatska
Jelena Trajković
; Šumarski fakultet Sveučilišta u Zagrebu, Hrvatska
Marin Hasan
; Šumarski fakultet Sveučilišta u Zagrebu, Hrvatska
Drago Katović
; Tekstilno-tehnološki fakultet Sveučilišta u Zagrebu, Hrvatska
Sandra Bischof Vukušić
; Tekstilno-tehnološki fakultet Sveučilišta u Zagrebu, Hrvatska
Martina Frančić
; Tekstilno-tehnološki fakultet Sveučilišta u Zagrebu, Hrvatska
Sažetak
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.
Ključne riječi
dimensional stability of wood; beech wood; fir wood; chemical modification; citric acid; NaH2PO2; NaH2PO4
Hrčak ID:
34519
URI
Datum izdavanja:
30.3.2009.
Posjeta: 3.251 *