Poliuretano urea modificado con un derivado de aceite de ricino con aplicaciones elastoméricas

fotografías, graficas, tablas

Autores:
Valencia Eraso, Carlos David
Tipo de recurso:
Fecha de publicación:
2023
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/85386
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/85386
https://repositorio.unal.edu.co/
Palabra clave:
660 - Ingeniería química
Poliuretano urea
Aceite de ricino
Ricinoleato de etilenglicol
Elastómeros
Polyurethane Urea
Castor oil
Ethylene glycol ricinoleate
Elastomers
Química
Chemistry
Rights
openAccess
License
Reconocimiento 4.0 Internacional
id UNACIONAL2_9a0b6050118236cf86d69110c98bdb0f
oai_identifier_str oai:repositorio.unal.edu.co:unal/85386
network_acronym_str UNACIONAL2
network_name_str Universidad Nacional de Colombia
repository_id_str
dc.title.spa.fl_str_mv Poliuretano urea modificado con un derivado de aceite de ricino con aplicaciones elastoméricas
dc.title.translated.eng.fl_str_mv Polyurethane urea modified with a derivative of castor oil with elastomeric applications
title Poliuretano urea modificado con un derivado de aceite de ricino con aplicaciones elastoméricas
spellingShingle Poliuretano urea modificado con un derivado de aceite de ricino con aplicaciones elastoméricas
660 - Ingeniería química
Poliuretano urea
Aceite de ricino
Ricinoleato de etilenglicol
Elastómeros
Polyurethane Urea
Castor oil
Ethylene glycol ricinoleate
Elastomers
Química
Chemistry
title_short Poliuretano urea modificado con un derivado de aceite de ricino con aplicaciones elastoméricas
title_full Poliuretano urea modificado con un derivado de aceite de ricino con aplicaciones elastoméricas
title_fullStr Poliuretano urea modificado con un derivado de aceite de ricino con aplicaciones elastoméricas
title_full_unstemmed Poliuretano urea modificado con un derivado de aceite de ricino con aplicaciones elastoméricas
title_sort Poliuretano urea modificado con un derivado de aceite de ricino con aplicaciones elastoméricas
dc.creator.fl_str_mv Valencia Eraso, Carlos David
dc.contributor.advisor.none.fl_str_mv Cuellar Burgos, Alneira
Mesa Rueda, Fabio Augusto
dc.contributor.author.none.fl_str_mv Valencia Eraso, Carlos David
dc.contributor.researchgroup.spa.fl_str_mv Polímeros y Materiales Compuestos
dc.subject.ddc.spa.fl_str_mv 660 - Ingeniería química
topic 660 - Ingeniería química
Poliuretano urea
Aceite de ricino
Ricinoleato de etilenglicol
Elastómeros
Polyurethane Urea
Castor oil
Ethylene glycol ricinoleate
Elastomers
Química
Chemistry
dc.subject.proposal.spa.fl_str_mv Poliuretano urea
Aceite de ricino
Ricinoleato de etilenglicol
Elastómeros
dc.subject.proposal.eng.fl_str_mv Polyurethane Urea
Castor oil
Ethylene glycol ricinoleate
Elastomers
dc.subject.unesco.none.fl_str_mv Química
Chemistry
description fotografías, graficas, tablas
publishDate 2023
dc.date.issued.none.fl_str_mv 2023
dc.date.accessioned.none.fl_str_mv 2024-01-22T14:28:30Z
dc.date.available.none.fl_str_mv 2024-01-22T14:28:30Z
dc.type.spa.fl_str_mv Trabajo de grado - Maestría
dc.type.version.spa.fl_str_mv info:eu-repo/semantics/acceptedVersion
dc.type.content.spa.fl_str_mv Text
dc.type.redcol.spa.fl_str_mv http://purl.org/redcol/resource_type/TM
status_str acceptedVersion
dc.identifier.uri.none.fl_str_mv https://repositorio.unal.edu.co/handle/unal/85386
dc.identifier.instname.spa.fl_str_mv Universidad Nacional de Colombia
dc.identifier.reponame.spa.fl_str_mv Repositorio Institucional Universidad Nacional de Colombia
dc.identifier.repourl.spa.fl_str_mv https://repositorio.unal.edu.co/
url https://repositorio.unal.edu.co/handle/unal/85386
https://repositorio.unal.edu.co/
identifier_str_mv Universidad Nacional de Colombia
Repositorio Institucional Universidad Nacional de Colombia
dc.language.iso.spa.fl_str_mv spa
language spa
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spelling Reconocimiento 4.0 Internacionalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Cuellar Burgos, Alneira03566ed38dd1ac85ec739a65099c0143600Mesa Rueda, Fabio Augustobac44b568ac9f30ee81b043480db2108600Valencia Eraso, Carlos David1704d9a6d2b1e51e299d19f85368e0f3Polímeros y Materiales Compuestos2024-01-22T14:28:30Z2024-01-22T14:28:30Z2023https://repositorio.unal.edu.co/handle/unal/85386Universidad Nacional de ColombiaRepositorio Institucional Universidad Nacional de Colombiahttps://repositorio.unal.edu.co/fotografías, graficas, tablasLa incorporación de compuestos poliméricos biobasados han adquirido mucha importancia y relevancia en la actualidad, debido a que permiten la reducción de los compuestos que tiene como origen el petróleo mediante la inclusión de nuevas fuentes renovables en su producción. En este trabajo se obtuvo un derivado del aceite de ricino mediante la transesterificación del aceite con el fin de reducir la funcionalidad hidroxilo y poder obtener un producto lineal para la elaboración de un elastómero de poliuretano urea (PUU). En la síntesis se utilizó aceite de ricino con dietilenglicol en exceso y KOH como catalizador. El producto obtenido fue separado y caracterizado por resonancia magnética nuclear (RMN), espectroscopia de infrarrojo por transformada de Fourier (FTIR), análisis termogravimétrico (TGA) y número hidroxilo, obteniéndose como bandas características para el ricinoleato (REG) el -OH en 1050 cm-1 del grupo hidroxilo primario y los picos 3.6 y 4.1 ppm correspondientes al –CH2 adyacente a un carbono secundario y al CH2-C-C=O-, respectivamente. El producto obtenido presentó una temperatura de degradación de 165ºC y un valor hidroxilo de 328 mg KOH/g. Posteriormente, se formuló y obtuvo un poliuretano urea biobasado (PUUR) con un segmento duro (%HS) de 40% a partir del derivado de aceite de ricino con una adición de ricinoleato de etilenglicol (REG) de 1.6% molar, una temperatura de 90ºC, catalizador DABCO y utilizando la técnica por solvente en dos pasos con un 32% de sólidos disueltos de igual forma se sintetizó un PUU estándar a las mismas condiciones con el fin de establecer las variaciones del producto biobasado. Estos productos fueron caracterizados X Poliuretano Urea Modificado con un Derivado de Aceite de Ricino con Aplicaciones Elastoméricas por RMN, FTIR, TGA, DSC y finalmente, por un ensayo de tracción para evaluar las características mecánicas de los productos. A través de la RMN se estableció que el producto REG se incorporó a la estructura a través del protón en la ubicación de 5.40 ppm (–CH) que corresponde a la insaturación del REG. Adicionalmente, se observó un cambio en el módulo de tracción del PUUR aumentando un 29% y reduciendo la elongación en un 82% con respecto al PUU estándar sintetizado, además se presenta también una reducción en 17 ºC en su estabilidad térmica, una reducción de la cristalización fría y un aumento en la temperatura de fusión del producto final con respecto al PUU estándar. Estos resultados son importantes, ya que se pudo sintetizar un producto biobasado mediante la modificación del aceite de ricino, y se pudo establecer los efectos ocasionados por el uso de este tipo de productos renovables en las propiedades finales de los poliuretanos urea lineales, adicionalmente se establecieron los procesos de síntesis y purificación de cada una de las etapas del proceso para la producción de un polímero de ingeniería como es el PUU con un derivado de fuente renovable (Texto tomado de la fuente)The incorporation of biobased polymeric compounds has acquired great importance and relevance today, because they allow the reduction of compounds that have petroleum origin by including new renewable sources in their production. In this work, a derivative of castor oil was obtained by means of transesterification of the oil in order to reduce the hydroxyl functionality and to obtain a linear product for the elaboration of a polyurethane urea elastomer. In the synthesis, castor oil was obtained with excess diethylene glycol and KOH as catalyst. The obtained product was separated and characterized by nuclear magnetic resonance (NMR), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and hydroxyl number, obtaining as characteristic bands for ricinoleate (REG) the -OH in 1050 cm-1 of the primary hydroxyl group and the 3.6 and 4.1 ppm peaks corresponding to –CH2 adjacent to a secondary carbon and to CH2-C-C=O-, respectively. The product obtained had a degradation temperature of 165°C and a hydroxyl value of 328 mg KOH/g. Subsequently, a biobased polyurethane urea (PUUR) with a hard segment (%HS) of 40% was formulated and obtained from the castor oil derivative with an addition of ethylene glycol ricinoleate (REG) of 1.6% molar, a temperature of 90ºC, DABCO catalyst and using the solvent technique in two steps with 32% dissolved solids, in the same way, a standard PUU was synthesized under the same conditions in order to establish the variations of the biobased product. These products were characterized by NMR, FTIR, TGA, DSC and finally, by a tensile test to evaluate the mechanical characteristics of the products. Through NMR it was established that the REG product was incorporated into the structure through the proton at the location of 5.40 ppm (–CH) which corresponds to the unsaturation of the REG. In addition, a change in the traction modulus of the PUUR was lost, increasing by 29% and elongation was reduced by 82% with respect to the synthesized standard PUU, in addition there is also a reduction of 17 ºC in its thermal stability, a reduction in the cold crystallization and an increase in the melting temperature of the final product with respect to standard PUU. These results are important, since it was possible to synthesize a biobased product by modifying castor oil, and it was possible to establish the effects caused by the use of this type of renewable products on the final properties of linear urea polyurethanes, additionally it suffers the synthesis and purification processes of each of the stages of the process for the production of an engineering polymer such as PUU with derivatives from renewable sources.MaestríaMagíster en Ingeniería - Ingeniería QuímicaPolímeros y Materiales CompuestosQuímica Y Procesos.Sede Manizales147 páginasapplication/pdfspaUniversidad Nacional de ColombiaManizales - Ingeniería y Arquitectura - Maestría en Ingeniería - Ingeniería QuímicaFacultad de Ingeniería y ArquitecturaManizales, ColombiaUniversidad Nacional de Colombia - Sede Manizales660 - Ingeniería químicaPoliuretano ureaAceite de ricinoRicinoleato de etilenglicolElastómerosPolyurethane UreaCastor oilEthylene glycol ricinoleateElastomersQuímicaChemistryPoliuretano urea modificado con un derivado de aceite de ricino con aplicaciones elastoméricasPolyurethane urea modified with a derivative of castor oil with elastomeric applicationsTrabajo de grado - Maestríainfo:eu-repo/semantics/acceptedVersionTexthttp://purl.org/redcol/resource_type/TMJ. 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Franco, “Estudio de la cristalización y de la transición de Brill en el Nylon 5,6,” 1998.BibliotecariosEstudiantesInvestigadoresMaestrosPúblico generalLICENSElicense.txtlicense.txttext/plain; charset=utf-85879https://repositorio.unal.edu.co/bitstream/unal/85386/1/license.txteb34b1cf90b7e1103fc9dfd26be24b4aMD51ORIGINAL1053842440.2023.pdf1053842440.2023.pdfTesis de Maestría en Ingeniería - Ingeniería Químicaapplication/pdf2383934https://repositorio.unal.edu.co/bitstream/unal/85386/2/1053842440.2023.pdff9ed7906199bfed066620973b53d9f1dMD52THUMBNAIL1053842440.2023.pdf.jpg1053842440.2023.pdf.jpgGenerated Thumbnailimage/jpeg5129https://repositorio.unal.edu.co/bitstream/unal/85386/3/1053842440.2023.pdf.jpge913af47825c47a4f4a811cac5eb4d4cMD53unal/85386oai:repositorio.unal.edu.co:unal/853862024-01-22 23:03:35.367Repositorio Institucional Universidad Nacional de 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