Southern pine solid wood and fiber were chemically modified with epichlorohydrin to help in understanding the role of moisture in the mechanism of biological effectiveness of chemically modified wood. The solid wood had weight gains from 11% to 34%, while the fiber had weight gains from 9% to 75%.…
Keywords: Chemical modification, epichlorohydrin, equilibrium moisture content, brown-rot fungus, energy dispersive x-ray analysis, solid wood, fiber
Source: Thirty-third annual meeting of the International Research Group on Wood Preservation, 2002 May 12-17, Cardiff, South Wales, UK. Stockholm, Sweden : IRG Secretariat, : 11 pages.
Reaction of wood with anhydrides, isocyanates, and epoxides reduces the moisture content of the cell wall and increases the resistance of the modified wood to attack by fungi. As the level of bonded chemical increases. the cell wall equilibrium moisture content decreases and the resistance to…
Keywords: Chemical modification, reaction systems, moisture content, decay resistance, plant cell walls, wood-decaying fungi, anhidrides, epoxy compounds, isocyanates, wood preservation, resistance to decay, modified wood, moisture content, preservation, chemical modification of wood
Source: Drewno. Vol. 48, no. 173 (2005): pages -117.
Moisture content has an effect on the biological decay of wood. The literature states that serious decay occurs when the moisture content of wood is above the fiber saturation point (FSP), which is the measurement of the moisture content of wood when the cell walls are saturated and the cell…
Keywords: Chemical modification, wood decay, wood preservation, fiber saturation point, equilibrium moisture content
Source: Mol. Cryst. And Liq. Crsyt., 2000. 353: 23-33.
Southern pine solid wood (SPS) and fiber (SPF) were chemically modified to various weight percent gains (WPG) using either acetic anhydride (AA, 4%-19% WPG), butylene oxide (BO, 4%-23% WPG), or propylene oxide (PO, 6%-30% WPG). After modification, part ofthe specimens were extracted with a toluene:…
Keywords: Chemical modification, acetylation, butylene oxide, propylene oxide, equilibrium moisture content, decay
Source: Conference proceedings