Ciencias Exactas y Ciencias de la Salud

Permanent URI for this collectionhttps://hdl.handle.net/11285/551039

Pertenecen a esta colección Tesis y Trabajos de grado de las Maestrías correspondientes a las Escuelas de Ingeniería y Ciencias así como a Medicina y Ciencias de la Salud.

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2017 - 20202

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Advisor: search.filters.advisor.Vázquez Lepe, Elisa VirginiaSubject: search.filters.subject.PLA

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    Tesis de maestría
    Manufacturability of PLA parts reinforced with TiO2 nanoparticles by ultrasonic molding.
    (Instituto Tecnológico y de Estudios Superiores de Monterrey, 2020-06-16) Macías Naranjo, Mariana; VAZQUEZ LEPE, ELISA VIRGINIA; 268852; Vázquez Lepe, Elisa Virginia; mla, emipsanchez; Ortega Lara, Wendy de Lourdes; Rodríguez González, Ciro Angel; School of Engineering and Sciences; Campus Monterrey; Ferrer Real, Inés
    The objective of the thesis is to define and to validate a methodology for the stabilization of process parameters in ultrasonic molding and to analyze the manufacturability of PLA parts reinforced with TiO2 nanoparticles in the ultrasonic molding process. Ultrasonic molding is a new technology used for micro-part molding, reducing the necessary energy, process times, and material waste. Validating a methodology for this process, PLA was processed with TiO2 nanoparticles to observe the response of the process in this combination of materials. In addition, to observe the influence of the concentration of nanoparticles by performing the characterization to find an application in the medical sector in the future.
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    Tesis de maestría
    Design of a Bioabsorbable stent as preventive treatment of complication in bariatric surgery RYGBP
    (2017-12-05) Jara Mendiola, Juan Manuel; Vázquez Lepe, Elisa Virginia; García López, Erika; Rodríguez González, Ciro Ángel
    A new approach to the treatment of complications of RYGBP is covered by the implementation of design methodologies as quality function deployment and theory of inventive problem solving, (QFD and TRIZ) to propose a Design of a bioabsrobable stent as a preventive treatment. In despite on the variability of documented results of degradation rates of bio polymers and bio metals, a new lab protocol is proposed to homogenize both families of materials degradation rates into comparable results. The usage of PLA and AZ31 into a new protocol proposal of degradation tests were carried on. The design resultant by the design methodologies were tested by finite element analysis to compare compression resistance, flexibility and compressibility. Three design proposals are shown with acceptable performance and an expected functional life time.
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