Diseño del proceso para la elaboración de una resina vinil acrílica a partir de la baba de nopal para empastes en la empresa Minabradec CIA. LTDA

Abstract

The main objective of this work was to design a process for the elaboration of a vinyl acrylic resin from the nopal slime for fillings in the MINABRADEC CIA company. LTDA., For which the slime was extracted through a process that consisted of: brushing, washing, heavy peeling, chopping, crushing, heating, filtering and spinning; it was then subjected to distillation improving the characteristics of the resin. The characterization of the raw material was carried out in a SAQMIC certified laboratory where 94.80% of humidity and a pH of 5.1 were obtained from the sampled cactus as the most outstanding parameters, the variables that intervened in the process were determined: viscosity, performance, time and operating temperatures, pH, solids, raw material concentration, etc. With the data obtained, the pertinent calculations were carried out to design the process, resulting in the fact that to generate 250 kg / h of resin, 691 stacks of raw material are needed. For the validation of the final product, chemical tests were carried out using the IR spectrum where the presence of functional groups (OH, amines, etc.) belonging to this type of resins was determined. It was also determined that it has a pH of 5, viscosity of 2500 Cp and 49% in the amount of solids, these data are within the ranges of demand for the product and its respective INEN standard. It is concluded that the resin meets the vinyl acrylic characteristics both physically and chemically, and is suitable for the use of fillings. The study of the use of additives in the formulation of the resin is recommended in order to improve its properties.