Zurruntasun-indar metodoaren inplementazioa konpositeen saiakuntza mekanikoetan

236 p.

Detalles Bibliográficos
Autor: Insausti Irastorza, Nagore
Tipo de recurso: tesis doctoral
Fecha de publicación:2019
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/35032
Acceso en línea:http://hdl.handle.net/10810/35032
Access Level:acceso abierto
Palabra clave:material properties
material resistance
testing of materials
propiedades de materiales
resistencia de materiales
ensayos de materiales
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spelling Zurruntasun-indar metodoaren inplementazioa konpositeen saiakuntza mekanikoetanInsausti Irastorza, Nagorematerial propertiesmaterial resistancetesting of materialspropiedades de materialesresistencia de materialesensayos de materiales236 p.The main goal of this PhD thesis was to establish a link between particle morphology and film morphology in hybrid particles latexes. The strategy used to understand it was to study the film morphology and properties of a variety of polymer-polymer hybrid particles latexes. For each system studied, different morphologies with near identical compositions and polymer microstructure were prepared. We demonstrated that film morphology is directly influenced by the particle morphology. Core-shell morphologies led to a honeycomb structure with a MFFT close to the Tg of the soft polymer. Hemispherical morphologies led to the formation of small aggregates of hard polymers in the soft matrix during film formation, which increases the MFFT of the film. Particles containing a hard polymer on the outer part of the particles allowed film formation close to room temperature. Tensile tests were performed for all the systems studied. The honeycomb-like structure displayed by films cast from soft core-hard shell particles enhances the film stiffness as the continuous phase is formed of the hard polymer. When the continuous phase is soft, the hard polymer is dispersed the soft continuous phase, the film is reinforced compared to a pure soft film. Hemispherical morphologies led to higher film stiffness than hard core-soft shell ones. Indeed, the formation of small aggregates of hard polymers increases the film. We demonstrated by thermal treatment of the films that the film morphology strongly affects the properties of the film. Thermal treatment above the Tg of the hard phase encourage phase migration and the polymers segregate or form a co-continuous structure if the compatibility of the polymers was high. Indeed, we showed that, in addition to the particle morphology, the compatibility between the phases has to be taken in account for film formation. If the phases show low compatibility they segregate during film formation. In order to confirm the advantages of hybrid particles to the use of blends, we compared hybrid particles latexes with a blend of two latexes of same overall compositions. We confirmed that hybrid particles lead to more homogeneous films structure. The latexes were used as binder in coatings applications. It was observed that the morphologies of the paint films from acrylic / alkyd hybrid particles latexes were in agreement with the latexes films. Moreover, the trends shown in the properties of the formulated paints were similar to that of the latexes films. Overall, it can be concluded that the final properties of polymer films and coatings can be tailored in the reactor by carefully designed synthesis of hybrid latex particles and post-synthesis through thermal treatment of the dry polymer films.Mujika Garitano, Faustino2019201920192019info:eu-repo/semantics/doctoralThesisapplication/pdfhttp://hdl.handle.net/10810/35032reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoEuskerainfo:eu-repo/semantics/openAccess(c)2019 NAGORE INSAUSTI IRASTORZAoai:addi.ehu.eus:10810/350322026-06-18T09:23:17Z
dc.title.none.fl_str_mv Zurruntasun-indar metodoaren inplementazioa konpositeen saiakuntza mekanikoetan
title Zurruntasun-indar metodoaren inplementazioa konpositeen saiakuntza mekanikoetan
spellingShingle Zurruntasun-indar metodoaren inplementazioa konpositeen saiakuntza mekanikoetan
Insausti Irastorza, Nagore
material properties
material resistance
testing of materials
propiedades de materiales
resistencia de materiales
ensayos de materiales
title_short Zurruntasun-indar metodoaren inplementazioa konpositeen saiakuntza mekanikoetan
title_full Zurruntasun-indar metodoaren inplementazioa konpositeen saiakuntza mekanikoetan
title_fullStr Zurruntasun-indar metodoaren inplementazioa konpositeen saiakuntza mekanikoetan
title_full_unstemmed Zurruntasun-indar metodoaren inplementazioa konpositeen saiakuntza mekanikoetan
title_sort Zurruntasun-indar metodoaren inplementazioa konpositeen saiakuntza mekanikoetan
dc.creator.none.fl_str_mv Insausti Irastorza, Nagore
author Insausti Irastorza, Nagore
author_facet Insausti Irastorza, Nagore
author_role author
dc.contributor.none.fl_str_mv Mujika Garitano, Faustino
dc.subject.none.fl_str_mv material properties
material resistance
testing of materials
propiedades de materiales
resistencia de materiales
ensayos de materiales
topic material properties
material resistance
testing of materials
propiedades de materiales
resistencia de materiales
ensayos de materiales
description 236 p.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/doctoralThesis
format doctoralThesis
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/35032
url http://hdl.handle.net/10810/35032
dc.language.none.fl_str_mv Euskera
language_invalid_str_mv Euskera
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
(c)2019 NAGORE INSAUSTI IRASTORZA
eu_rights_str_mv openAccess
rights_invalid_str_mv (c)2019 NAGORE INSAUSTI IRASTORZA
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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