Obtención de una resina alquídica a partir de aceite de palma mediante reacción con diferentes polioles.

Abstract

In this project, alkyd resins were synthesized from palm oil with varying degrees of acidity. All samples were conditioned oil by neutralization and dehydration. The alcoholysis reaction is carried out using glycerol and using potassium hydroxide as catalyst. The polyesterification of palm oil monoglycerides was performed using three different polyols and phthalic anhydride. The physicochemical properties of the resins such as density, viscosity, acid value, iodine value and moisture content were measured using ASTM standard methods. The thermal properties of the resins were determined using Thermogravimetric Analysis (TGA), Differential Scanning Calorimetry (DSC), Fourier transform infrared (FT-IR). The resins obtained from polyols showed significant differences in reaction time and the final properties. The formulation of the resin obtained from phthalic anhydride, glycerol and ethylene glycol had the lowest reaction time and better physicochemical properties. This formulation was proceeded to the kinetic study of the polyesterification reaction, using the Monte Carlo method for the determination of kinetic parameters. The kinetic parameters obtained from the model significantly represent the experimental data..