Process modeling, optimization and analysis of esterification reaction of cashew nut shell liquid (CNSL)-derived epoxy resin using response surface methodology.
Concept of five-levels-four-factors central composite rotatable design was utilized for the optimization of reaction conditions of cardanol-based vinyl ester resin production, by employing response surfaces methodology, to establish a relationship between the process variables and the extent of conversion under a wide range of operating conditions which resulted in different extent of conversions. The maximum extent of conversion of cardanol-based epoxidised novolac resin (CNE) and methacrylic acid (MA) catalyzed by triphenylphosphine was found to be 95% at optimum set of conditions of molar ratio (1:0.9) between CNE and MA, catalyst concentration (1.49%), reaction temperature (89.96 °C) and reaction time (17,991s). Geometrical representation of the mathematical models in three-dimensional response surface plots and isoresponse contour plots served as a good aid in understanding the behavior of reaction under different operating conditions by only limited sets of experiments. A statistical model predicted that the highest conversion yield of novolac resin would be greater than 95% at the optimized reaction conditions. The predicted values thus obtained were close to the experimental values indicating suitability of the model.
Department of Plastic Technology, HB Technological Institute, Kanpur 208 002, UP, India.
Minakshi
M
Sultania
J S P
JS
Rai
Deepak
D
Srivastava
D031021:Anacardium / Q000737:chemistry*; D004852:Epoxy Compounds / Q000737:chemistry*; D004951:Esterification; D008962:Models, Theoretical; D010636:Phenols / Q000737:chemistry; D013499:Surface Properties
D004852:Epoxy Compounds; D010636:Phenols; C038590:cardanol