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

Abstract

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%.

A Review on Sustainable Product Design, Marketing Strategies and Conscious Consumption of Bamboo Lifestyle Products

“…An overall zero-waste, closed-loop model for bamboo industries can pave the way for sustainable development. There is an immediate need to address the issues of policy implementation or development of bamboo policy regulation on the universal understanding of the industrial perspective of bamboo to boost the country's economy [76]. The study explores woven bamboo wall material production with sustainable architectural principles.…”

Tensile Strength of Bamboo After Preservation

“…In addition, based on previous research, bamboo has quite good mechanical properties with very high tensile strength and the results of comparison with steel materials show that the tensile strength of bamboo exceeds the tensile strength of steel, so that bamboo can compete (Morisco 2006). Several studies to improve the durability and strength of bamboo have been carried out by previous researchers (Chen et al n.d.;Daud et al 2018;Gauss et al, 2019;Industri and 2017 n.d.;Lath and Shukla 2019;Möller and Mild 2019;Uslinawaty et al 2019). The purpose of this research was to determine the tensile strength of bamboo after preserving and compared with before preserving.…”