Browsing by Author "López Yánez, Julio Armando"

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Obtención de un material biodegradable y elaboración de un vaso a partir de almidón de maíz
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2022-06) López Yánez, Julio Armando; Tasigchana Chango, Jorge Raúl; Guamanquispe Toasa, Jorge Patricio
In this technical project the process for obtaining sheets of the biodegradable material was detailed, tests were carried out to give a final use to the material with the manufacture of glasses. To obtain the corn starch, the tender corn was soaked for eight hours, to give way to washing and wet grinding, the result was left at rest for 24 hours, the starch settling to remove water and residues, the starch was left to rest to that the remaining humidity is eliminated and when it dries to obtain cornstarch. The process for the manufacture of corn starch sheets was achieved with the mixture of tender corn starch, adding binders, glycerin, acetic acid, distilled water and heating it until obtaining a uniform casting. The samples obtained were sent to the laboratories for tensile, flammable and hardness tests, with the data the properties table for the vegetable plastic cup based on corn starch was presented. To produce the cup, a design of the glass was implemented using CAD software and the development of a mold for injection of the material. It concluded with the delivery of the technical sheet which includes the description of the product, applications and technical data such as the combustion rate which is 117,43 mm / min, a shore hardness D 73.85 maximum effort at the tensile 16,85 MPa, modulus of elasticity 756,439 MPa with a percentage of elongation 3.60 percent.