Optimization of SC-CO2 Time Conditions and Permethrin Concentration in Laminated Bamboo Production Using Surface Response Methodology

14th Pacific Rim Bio-Based Composites Symposium

材料科学;生物科学

Uslinawaty, Z.^1 ; Muin, M.^2 ; Putranto, B.^2 ; Suhasman, S.^2

Departmen of Forestry, Haluoleo University, Jl. H.E.A. Mokodompit No. 1, Kendari, South east Sulawesi

93232, Indonesia^1

Department of Forestry, Hasanuddin University, Jl. Perintis Kemerdekaan KM-10, Makassar, South Sulawesi

90245, Indonesia^2

关键词: Combination weights;    Environmental friendly methods;    Optimum conditions;    Physical and mechanical properties;    Response surface analysis;    Supercritical carbon dioxides;    Supercritical condition;    Surface response methodologies;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/593/1/012022/pdf
DOI  :  10.1088/1757-899X/593/1/012022

来源: IOP

【 摘 要 】

Supercritical carbon dioxide method has starting to be used as environmental friendly method in preserving wood. It is expected to maintain physical and mechanical properties of bamboo. The purpose of this study was to determine the effect of the duration times of supercritical conditions and permethrin preservative concentrations on optimization of shear strength of laminated bamboo impregnated by using supercritical carbon dioxide in the initial process (blades) and final process (laminated bamboo). The RSM-CCD experimental design was used to determine the effect of duration times of supercritical carbon dioxide for 20, 25, 30, 35, 40 minutes and the effect of permethrin concentrations 0.1, 0.3, and 0.5% against the shear strength of laminated bamboos. Response surface analysis, using 10 version of design expert software, has been done to get the optimum condition which would produce maximum of shear strength. The results showed that permethrin concentrations have stronger influenced (based on RSM analysis) on the shear strength and durability of laminated bamboo than the times of supercritical carbon dioxide conditions. Optimization of the two combinations of increasing shear strength and endurance were supercritical conditions = 22.71 minutes, and preservative permethrin concentration = 0.24%. Shear strength of shear strength and decrease in combination weight is 85 kg / cm2 and 0.38%.