Evaluation of Weathering Performance of Rosin-Copper Based Treated Wood  

作　　者：Thi Thanh Hien Nguyen Nho Quyet Tran Thi Minh Nguyet Nguyen Hien Mai Trinh Xuan Phuong Le Trong Kien Nguyen 

机构地区：[1]College of Wood Industry and Interior Design,Vietnam National University of Forestry,Ha Noi,Viet Nam [2]College of Economics and Management,Northeast Forestry University,Harbin,China

出　　处：《Journal of Renewable Materials》2022年第11期2765-2780,共16页可再生材料杂志（英文）

基　　金：the support of the Vietnam National Foundation for Science and Technology Development(NAFOSTED)[Grant No.106.99-2018.16].

摘　　要：This study aimed to evaluate the effect of natural weathering on some surface characteristics and mechanical properties of Styrax wood treated with mixtures of 1.0%,2.0%,or 4.0%rosin sizing agent and 3%copper sulfate.Wood samples after treatment were exposed to outdoor conditions for one year and changes in color,glossiness,weight loss,compression strength parallel to grain(CSPG),modulus of rupture(MOR),and modulus of elasticity(MOE)were investigated after 6 and 12-month of natural weathering.The results showed that rosin-copper treatment could improve color stability and gloss of samples after weathering.Mass losses of all rosin-copper treated samples after 12 months of exposure were negligible compared with the untreated control samples.In addition,rosin-copper treatment enhanced the CSPG compared to untreated controls,but slightly decreased the MOR and MOE of Styrax wood before weathering.Natural weathering factors induced a reduction for all strength properties,however,the decrease rate for strength properties of rosin-copper treated samples was negligible compared with the untreated control samples after 12-month natural weathering exposure.The FTIR and SEM-EDX confirmed that the use of the rosin-copper formulations to impregnate wood could decrease the hazard of the copper preservative leaching into the environment,while also enhancing more resistance against weathering factors and other biotic factors.

关 键 词：Rosin-copper WEATHERING color stability CSPG MOR MOE 

分 类 号：TU531[建筑科学—建筑技术科学]