Optimisation of the processing variables for high polymer loading in compressed wood using response surface methodology
2012
Bakar E. S. | Kim, G. H. | Rushdan I. | Zaidon A. | Paridah, M. T.
Response surface methodology (RSM) was applied to optimise processing variables in achieving high polymer loading incompressed sesenduk (Endospermum diadenum)wood. Central composite design (CCD) using RSM with three process variables, namely, phenol formaldehyde concentration (PC), pre-curing time (PCT) and compressionratio (CR) was used in this study to optimise effects of these variables on polymer loading. A quadratic modelwas obtained for polymer loading through this design. The experimental values were in good agreementwith the predicted ones and the model was highly significant with correlation coefficient of 0.915. Within thepre-curing time applied in this study, the independent variable did not show any significant effect on polymerloading. Interactions between PC and PCT, PC and CR, and PCT and CR were negligible. Maximum polymerloading was achieved with 36% phenol formaldehyde solution and 74% compression ratio.
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