Effects of mDMDHEU treatment on mold and fungal resistance of Canarium album wood
10:18 - 09/04/2019
Evaluation of chemical treatments on dimensional stabilization of archeological waterlogged hardwoods obtained from the Thang Long Imperial Citadel site, Vietnam
Natural durability of the culturally and historically important timber: Erythrophleum fordii wood against white-rot fungi
Shrinkage and swelling behavior of archaeological waterlogged wood preserved with slightly crosslinked sodium polyacrylate
Natural durability of Erythrophleum fordii Oliver against white rot fungi
Shrinkage and swelling behavior of archaeological waterlogged wood treated with polyacrylic acid resin
Natural durability of the culturally and historically important timber: Erythrophleum fordii wood against white-rot fungi
Shrinkage and swelling behavior of archaeological waterlogged wood preserved with slightly crosslinked sodium polyacrylate
Natural durability of Erythrophleum fordii Oliver against white rot fungi
Shrinkage and swelling behavior of archaeological waterlogged wood treated with polyacrylic acid resin
Author: Phuong Hoa, Thanh Duc Nguyen, Nguyen Thi Loan
Abstract
Studying the effects of concentrations of 10%, 20%, 30% and fixing the curing at temperature 120°C for 8 hours to resist against fungi by characterizing the mass loss rate; the resistance against mold characterized by the discolored area ratio. Although the process of treating Canarium album should increase the resistance against mold, it is trivial. The discolored area ratio of untreated sample is over 85% while the percentage area of the discoloration of treated wood samples with chemical concentrations reached from 78.26 to 45.54%, decreased from 12.74% to 48.44%. The treated Canarium album by mDMDHEU force the increase of the resistance against mold. The mass loss by white rot fungi Trametes corrugate (Pers.) Bress of untreated Canarium album is about 43‐45% while the rate of untreated sample is from 7.36% to 3.63%. Additionally, the mass loss by white rot fungi Pleurotus ostreatus of untreated Canarium album is about 24‐26% while the rate of untreated sample is from 7.29% to 3.19%. Moreover, the mass loss by brown rod fungi Daedalea quercina (L.) Pers of untreated and treated Canarium album is about 24‐26% and 8.44‐ 8.39%, respectively