Selección de un agente dispersante compatible con recubrimientos base agua y base solvente para su uso en concentrados pigmentarios universales

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dc.contributor.advisorBoyacá Mendivelso, Luis Alejandrospa
dc.contributor.authorFernández Ramírez, Juan Sebastiánspa
dc.contributor.cvlacFernández Ramírez Juan Sebastiánspa
dc.contributor.orcidFernández Ramírez, Juan Sebastián [0000000297801642]spa
dc.date.accessioned2023-11-29T03:28:33Z
dc.date.available2023-11-29T03:28:33Z
dc.date.issued2023
dc.descriptionilustraciones, tablasspa
dc.description.abstractEste trabajo se enfoca en ofrecer recursos técnicos para la correcta selección de un agente dispersante dirigido a formular concentrados pigmentarios universales que sean compatibles en sistemas de recubrimientos base agua y base solvente – alquídicos. El desarrollo de este trabajo contempla una clasificación de los agentes dispersantes disponibles en el mercado colombiano, y una caracterización por espectroscopía infrarroja para hacer una primera selección de los agentes dispersantes que ofrecen características de universalidad. En este primer paso se selecciona un dispersante oligomérico de poliéster modificado y un dispersante acrílico de bloques AB. Una vez caracterizados los grupos funcionales se realiza un diseño de experimentos factorial 32 para la determinación de la relación óptima de concentración de pigmento y dispersante. Finalmente, con los concentrados pigmentarios formulados con la relación óptima, se realizan ensayos de estabilidad y compatibilidad para evaluar el desempeño ofrecido por el dispersante. Los datos experimentales obtenidos presentan que el dispersante oligomérico posee una mayor compatibilidad en medios acuosos y solventes que el dispersante acrílico por bloques (Texto tomado de la fuente).spa
dc.description.abstractThis work focuses on providing technical resources for the proper selection of a dispersing agent aimed at universal pigment concentrates that are compatible in water-based and solvent-based coatings. The development of this work includes a classification of dispersing agents available in the Colombian market, and a characterization by infrared spectroscopy to make a first selection of dispersing agents that offer universal characteristics. In this first step, a modified polyester oligomeric dispersant and an AB block acrylic dispersant are selected. Once the functional groups are characterized, a 32 factorial design of experiments is carried out to determine the optimal pigment concentration and dispersant ratio. Finally, with the pigment concentrates formulated with the optimal ratio, stability and compatibility tests are carried out to determine the performance offered by the dispersing agent. The experimental data obtained shows that the oligomeric dispersant has greater compatibility in aqueous and solvent media than the acrylic dispersant.eng
dc.description.curricularareaQuímica.Sede Bogotáspa
dc.description.degreelevelMaestríaspa
dc.description.degreenameMagíster en Ingeniería - Ingeniería Químicaspa
dc.format.extentxvii, 99 páginasspa
dc.format.mimetypeapplication/pdfspa
dc.identifier.instnameUniversidad Nacional de Colombiaspa
dc.identifier.reponameRepositorio Institucional Universidad Nacional de Colombiaspa
dc.identifier.repourlhttps://repositorio.unal.edu.co/spa
dc.identifier.urihttps://repositorio.unal.edu.co/handle/unal/85015
dc.language.isospaspa
dc.publisherUniversidad Nacional de Colombiaspa
dc.publisher.branchUniversidad Nacional de Colombia - Sede Bogotáspa
dc.publisher.facultyFacultad de Ingenieríaspa
dc.publisher.placeBogotá, Colombiaspa
dc.publisher.programBogotá - Ingeniería - Maestría en Ingeniería - Ingeniería Químicaspa
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dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.rights.licenseAtribución-NoComercial 4.0 Internacionalspa
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/spa
dc.subject.ddc540 - Química y ciencias afinesspa
dc.subject.lembEXCIPIENTESspa
dc.subject.lembExcipientseng
dc.subject.lembAGENTES ESTABILIZANTESspa
dc.subject.lembStabilizing agentseng
dc.subject.lembPIGMENTOSspa
dc.subject.lembPigmentseng
dc.subject.lembQUIMICA DE TINTESspa
dc.subject.lembDyes and dyeing - chemistryeng
dc.subject.proposalConcentrado pigmentario universalspa
dc.subject.proposalAgente dispersantespa
dc.subject.proposalProcesos de dispersiónspa
dc.subject.proposalEstabilización de la dispersiónspa
dc.subject.proposalDiseño de experimentosspa
dc.subject.proposalConcentrate universal pigmenteng
dc.subject.proposalDispersing agenteng
dc.subject.proposalDispersion processeng
dc.subject.proposalDispersion stabilizationeng
dc.subject.proposalExperimental designeng
dc.titleSelección de un agente dispersante compatible con recubrimientos base agua y base solvente para su uso en concentrados pigmentarios universalesspa
dc.title.translatedSelection of a dispersing agent compatible in water-based and solvent-based coatings for use in universal pigment concentrateseng
dc.typeTrabajo de grado - Maestríaspa
dc.type.coarhttp://purl.org/coar/resource_type/c_bdccspa
dc.type.coarversionhttp://purl.org/coar/version/c_ab4af688f83e57aaspa
dc.type.contentTextspa
dc.type.driverinfo:eu-repo/semantics/masterThesisspa
dc.type.versioninfo:eu-repo/semantics/acceptedVersionspa
dcterms.audience.professionaldevelopmentEstudiantesspa
dcterms.audience.professionaldevelopmentInvestigadoresspa
dcterms.audience.professionaldevelopmentMaestrosspa
dcterms.audience.professionaldevelopmentPúblico generalspa
oaire.accessrightshttp://purl.org/coar/access_right/c_abf2spa

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