On the strategies for incorporating nanosilica aqueous dispersion in the synthesis of waterborne polyurethane silica nanocomposites, Effects on morphology and properties

In this work the synthesis of waterborne polyurethane/nanosilica nanocomposites by using two differ- ent strategies is presented, starting from a vinyl terminated polyurethane prepolymer (PUP) based on isophorone diisocyanate and polypropylene glycol, and varying the nanosilica content. In one case,...

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Autores principales: Peruzzo, Pablo, Anbinder, Pablo, Pardini, Francisco, Pardini, Oscar, Plivelic, Tomas, Amalvy, Javier
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: 2019
Materias:
Nanocomposites, Polyurethane/nanosilica, Waterborne dispersions
Acceso en línea:http://hdl.handle.net/20.500.12272/3423
Aporte de:
RIA - Repositorio Institucional Abierto (UTN) de Universidad Tecnológica Nacional
id I68-R174-20.500.12272-3423
record_format dspace
institution Universidad Tecnológica Nacional
institution_str I-68
repository_str R-174
collection RIA - Repositorio Institucional Abierto (UTN)
language Inglés
topic Nanocomposites, Polyurethane/nanosilica, Waterborne dispersions
spellingShingle Nanocomposites, Polyurethane/nanosilica, Waterborne dispersions
Peruzzo, Pablo
Anbinder, Pablo
Pardini, Francisco
Pardini, Oscar
Plivelic, Tomas
Amalvy, Javier
On the strategies for incorporating nanosilica aqueous dispersion in the synthesis of waterborne polyurethane silica nanocomposites, Effects on morphology and properties
topic_facet Nanocomposites, Polyurethane/nanosilica, Waterborne dispersions
description In this work the synthesis of waterborne polyurethane/nanosilica nanocomposites by using two differ- ent strategies is presented, starting from a vinyl terminated polyurethane prepolymer (PUP) based on isophorone diisocyanate and polypropylene glycol, and varying the nanosilica content. In one case, the PUP was dispersed in an aqueous solution containing glycerol-functionalized colloidal nanosilica parti- cles and the dispersion was further polymerized; in the other case, the PUP was dispersed in an aqueous media, then colloidal nanosilica was added to the dispersion and then polymerized. A physical mixture was also prepared for comparative purpose. Films were prepared by casting of the aqueous dispersion. The morphology of the dispersions and films depended on the incorporation route of nanoparticles as was observed by SAXS, SEM and TEM. While the blends had significantly less hydrogen bonding between the hard segments of the PU and nanosilica particles, samples prepared by the two different methods proposed in this work showed an strong interaction between both materials in agreement with FTIR and DSC results. Synthesis pathway plays an important role in order to obtain high performance waterborne polyurethane/nanosilica composites, since final properties of the films also depended on the nanoparticle incorporation strategy.
format Artículo
publishedVersion
Artículo
author Peruzzo, Pablo
Anbinder, Pablo
Pardini, Francisco
Pardini, Oscar
Plivelic, Tomas
Amalvy, Javier
author_facet Peruzzo, Pablo
Anbinder, Pablo
Pardini, Francisco
Pardini, Oscar
Plivelic, Tomas
Amalvy, Javier
author_sort Peruzzo, Pablo
title On the strategies for incorporating nanosilica aqueous dispersion in the synthesis of waterborne polyurethane silica nanocomposites, Effects on morphology and properties
title_short On the strategies for incorporating nanosilica aqueous dispersion in the synthesis of waterborne polyurethane silica nanocomposites, Effects on morphology and properties
title_full On the strategies for incorporating nanosilica aqueous dispersion in the synthesis of waterborne polyurethane silica nanocomposites, Effects on morphology and properties
title_fullStr On the strategies for incorporating nanosilica aqueous dispersion in the synthesis of waterborne polyurethane silica nanocomposites, Effects on morphology and properties
title_full_unstemmed On the strategies for incorporating nanosilica aqueous dispersion in the synthesis of waterborne polyurethane silica nanocomposites, Effects on morphology and properties
title_sort on the strategies for incorporating nanosilica aqueous dispersion in the synthesis of waterborne polyurethane silica nanocomposites, effects on morphology and properties
publishDate 2019
url http://hdl.handle.net/20.500.12272/3423
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