Maestría en Mecánica Mención Manufactura

Permanent URI for this collectionhttp://repositorio.uta.edu.ec/handle/123456789/30258

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Subject: search.filters.subject.MATERIAL COMPUESTO

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    Proceso tecnológico para la fabricación de materiales compuestos con matriz polimérica y refuerzo de fibra de vidrio para su uso en filamento de impresión 3D
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Mecánica Mención Manufactura, 2021) Villegas Suárez, Edmundo Sebastián; Espín Lagos, Segundo Manuel
    The present research work was focused on determining the best configuration of the polymeric matrix of recycled PET plastic and glass fiber reinforcement, for the manufacture of a new polymeric composite material intended for the extrusion of filament for 3D printing; For the analysis several aspects were determined such as the feasibility of extrusion of the composite material, the nozzle diameters of the extruder and 3D printer, the feasibility and processing of the raw material such as shredded recycled PET and later pelletized, in addition to the fiberglass in different configurations and redesign and implementation of the extruder machine. Using these considerations, the results of the diameter of the filaments obtained in each configuration and volumetric composition were analyzed, and the best option was determined by means of a T-student statistical analysis; with the result obtained from the analysis, the mechanical properties of the material were determined. The results of this research showed that the optimal configuration with filament for 3D printing is 90 percent recycled PET plus 10 percent glass fiber powder, and this is the most feasible for the extrusion of the filament since it fits the diameter of the nozzle of the 3D printer; at the same time, the mechanical properties of this new material were determined.
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    Proceso tecnológico para la fabricación de un aislante térmico mediante la reutilización de residuos de material compuesto de matriz de resina poliéster reforzado con fibra de vidrio
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Mecánica Mención Manufactura, 2021-06) Freire Quinga, Erika Pamela; Carrillo Rosero, Carlos Mauricio
    The present investigation develops the technological process for the manufacture of a thermal insulator obtained from the combination of gypsum with crushed waste of a material with glass fiber reinforced polymer (GFRP) for the manufacture of ceiling panels, the mechanical and thermal properties of flexure, hardness and thermal conductivity were evaluated of each volumetric configurations analyzed. From the tests, it was determined that the best mechanical and thermal behavior of the composite material was 50 percent gypsum and 50 percent GFRP with a thickness of 9.5 mm with a flexural strength of 10.93 MPa, surface hardness with a footprint of 13mm and thermal conductivity of 0.11 W / m K,, also the presence of GFRP residues reduces the weight of the ceiling by 60 percent as well as the manufacturing cost. In conclusion, composite material of gypsum with GFRP waste improved the mechanical properties compared to existing gypsum panels.