Epoxidation of Residual Soybean Oil and Thermal Characterization of Residual Epoxidized Soybean Oil Crosslinked with Fumaric Acid
摘要
The use of waste cooking oil (WVOs) for technological applications is a required alternative that contributes to the principles of the circular economy and demands of replacement of fossil sources. This work explores the epoxidation of residual soybean oil (RSO) from frying and investigates the crosslinking of residual epoxidized soybean oil (RESO) in contrast to the crosslinking of virgin epoxidized soybean oil (ESO), using fumaric acid (FMA). The curing and degradation kinetics of RESO/FMA and ESO/FMA compounds were investigated for molar ratios 1:0.45 and 1:0.70. RESO/FMA composites showed higher curing activation energies (Eac) during crosslinking, and higher degradation activation energies (Ead) given the greater thermal stability, been able to replace virgin ESO in epoxy resins.