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Please use this identifier to cite or link to this item: http://repositorio.ugto.mx/handle/20.500.12059/13335
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dc.rights.licensehttp://creativecommons.org/licenses/by-nc-nd/4.0es_MX
dc.contributor.authorFernando Antonio Domínguez Saldañaes_MX
dc.contributor.authorAndrea Gisela Hernández Olmoses_MX
dc.contributor.authorNorma Daniela Ríos Gutiérrezes_MX
dc.contributor.authorSandra Melissa Tostado Hernándezes_MX
dc.contributor.authorDavid Uriel Zúñiga Sotoes_MX
dc.contributor.authorM. Martínez Morenoes_MX
dc.contributor.authorMiriam Fuentes Ramírezes_MX
dc.contributor.authorDavid Contreras Lópezes_MX
dc.creatorI. Anda Domínguezes_MX
dc.date.accessioned2025-01-09T16:57:26Z-
dc.date.available2025-01-09T16:57:26Z-
dc.date.issued2024-09-30-
dc.identifier.issn2395-9797es_MX
dc.identifier.urihttp://repositorio.ugto.mx/handle/20.500.12059/13335es_MX
dc.description.abstractLos polímeros con memoria de forma han sido materiales de gran interés debido a la capacidad de deformarse y recuperar su forma original. Para el presente trabajo se elaboró un recubrimiento de poliuretano base agua con propiedades autorreparables. Para lograrlo se utilizaron nanopartículas de magnetita para brindar una mejora al recubrimiento. La magnetita y el poliuretano fueron caracterizados mediante la técnica de espectroscopia de infrarrojo; además, a la magnetita se le realizó la prueba de colorimetría y estabilidad en medios ácidos y alcalinos. Se elaboraron muestras de distintas concentraciones de nanopartículas (0.0%, 0.025%, 0.05% y 0.1%,). Para mejorar el recubrimiento se añadió un agente emulsificante, talco y antiespumante. A las muestras se les realizaron pruebas mecánicas (adhesión y dureza), ángulo de contacto, absorción de agua y densidad y las pruebas de autoreparación mediante el estímulo de luz ultravioleta y calor. La adición de las nanopartículas magnéticas muestra una mejora ees_MX
dc.language.isospaes_MX
dc.relationhttps://www.jovenesenlaciencia.ugto.mx/index.php/jovenesenlaciencia/article/view/4418/3897es_MX
dc.rightsinfo:eu-repo/semantics/openAccesses_MX
dc.sourceJóvenes en la Ciencia: XXIX Verano de la Ciencia UG. Vol. 28 (2024)es_MX
dc.titleDesarrollo de una matriz polimérica con propiedades autorreparableses_MX
dc.title.alternativeDevelopment of a polymer matrix with self-healing propertiesen
dc.typeinfo:eu-repo/semantics/articlees_MX
dc.subject.ctiinfo:eu-repo/classification/cti/2es_MX
dc.subject.keywordsCompuestos de Matriz Polimérica (CMP)es_MX
dc.subject.keywordsAutorreparaciónes_MX
dc.subject.keywordsPoliuretanoes_MX
dc.subject.keywordsMagnetitaes_MX
dc.subject.keywordsPolímeros con memoria de formaes_MX
dc.subject.keywordsPolymeric Matrix Composites (CMP)es_MX
dc.subject.keywordsSelf-repaires_MX
dc.subject.keywordsPolyurethanees_MX
dc.subject.keywordsMagnetitees_MX
dc.subject.keywordsShape memory polymerses_MX
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_MX
dc.publisher.universityUniversidad de Guanajuatoes_MX
dc.description.abstractEnglishShape memory polymers have been materials of great interest due to their ability to deform and recover their original shape. For the present work, a water-based polyurethane coating with self-healing properties was developed. To achieve this, magnetite nanoparticles were used to improve the coating. The magnetite and polyurethane were characterized using infrared spectroscopy, and the magnetite was tested for colorimetry and stability in acid and alkaline media. Samples of different concentrations of nanoparticles (0.0%, 0.025%, 0.05% and 0.1%) were developed. An emulsifying agent, talc and antifoam were added to improve the coating. The samples were subjected to mechanical tests (adhesion and hardness), contact angle, water absorption and density, and self-healing tests using ultraviolet light and heat stimulation. The addition of magnetic nanoparticles shows an improvement in the adhesiveness and hardness of the materials, although polyurethane alone has greater hardness and density due to porosity. All coatings proved to be hydrophilic. The recovery of damaged coatings was achieved by means of stimulation with ultraviolet light and heat flow. Although ultraviolet light affected the structure of the polyurethane by changing its color, this did not happen with the temperature applied through the heat flow. In addition, the recovery by ultraviolet light lasted 24 hours, while the longest time applied with heat was only 20 minutes, demonstrating that heat is a better stimulant for the recovery of the coating.en
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