Weathering Resistance of Waterborne Polyurethane Coatings Reinforced with Silica from Rice Husk Ash

Detalhes bibliográficos
Autor(a) principal: MONTEIRO,WESLEY F.
Data de Publicação: 2019
Outros Autores: MIRANDA,GABRIELA M., SOARES,RAFAEL R., SANTOS,CLÁUDIA A.B. DOS, HOFFMANN,MAURÍCIO S., CARONE,CARLOS L.P., LIMA,VIVIANE DE, SOUZA,MILTON F. DE, CAMPANI,ADRIANO D., EINLOFT,SANDRA M.O., LIMA,JEANE E. DE, LIGABUE,ROSANE A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Anais da Academia Brasileira de Ciências (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700403
Resumo: Abstract: Waterborne polyurethanes (WPUs) are interesting materials for coatings when compared to solvent-based polyurethanes, once that reducing the concentration of volatile organic compounds that are harmful for human health and the environment. However, the WPU has low weathering resistance. In order to improve this behavior among others properties, inorganic fillers has been added in these systems. SiO2 particles from various sources, mainly, from agro-industrial waste, as rice husk has attracted the scientific and technological interest. In this study, the accelerated weathering essay was performed in waterborne polyurethane (WPU)/ silica (from rice husk ash) composites in order to evaluate the thermal and physical changes in these materials. These composites were prepared by two distinct methods: in situ polymerization and blending method. The highest resistance to thermal degradation and to accelerated weathering was reached with WPU/silica composites obtained by blending method due the interactions between SiO2 particles and the polymer matrices. Blending method for preparation WPU/silica composites proved to be a simpler and faster method, with no drawback for large scale application.
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spelling Weathering Resistance of Waterborne Polyurethane Coatings Reinforced with Silica from Rice Husk Ashwaterborne polyurethanerice husk ashsilicaaccelerated weathering resistanceAbstract: Waterborne polyurethanes (WPUs) are interesting materials for coatings when compared to solvent-based polyurethanes, once that reducing the concentration of volatile organic compounds that are harmful for human health and the environment. However, the WPU has low weathering resistance. In order to improve this behavior among others properties, inorganic fillers has been added in these systems. SiO2 particles from various sources, mainly, from agro-industrial waste, as rice husk has attracted the scientific and technological interest. In this study, the accelerated weathering essay was performed in waterborne polyurethane (WPU)/ silica (from rice husk ash) composites in order to evaluate the thermal and physical changes in these materials. These composites were prepared by two distinct methods: in situ polymerization and blending method. The highest resistance to thermal degradation and to accelerated weathering was reached with WPU/silica composites obtained by blending method due the interactions between SiO2 particles and the polymer matrices. Blending method for preparation WPU/silica composites proved to be a simpler and faster method, with no drawback for large scale application.Academia Brasileira de Ciências2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700403Anais da Academia Brasileira de Ciências v.91 n.4 2019reponame:Anais da Academia Brasileira de Ciências (Online)instname:Academia Brasileira de Ciências (ABC)instacron:ABC10.1590/0001-3765201920181190info:eu-repo/semantics/openAccessMONTEIRO,WESLEY F.MIRANDA,GABRIELA M.SOARES,RAFAEL R.SANTOS,CLÁUDIA A.B. DOSHOFFMANN,MAURÍCIO S.CARONE,CARLOS L.P.LIMA,VIVIANE DESOUZA,MILTON F. DECAMPANI,ADRIANO D.EINLOFT,SANDRA M.O.LIMA,JEANE E. DELIGABUE,ROSANE A.eng2019-11-21T00:00:00Zoai:scielo:S0001-37652019000700403Revistahttp://www.scielo.br/aabchttps://old.scielo.br/oai/scielo-oai.php||aabc@abc.org.br1678-26900001-3765opendoar:2019-11-21T00:00Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)false
dc.title.none.fl_str_mv Weathering Resistance of Waterborne Polyurethane Coatings Reinforced with Silica from Rice Husk Ash
title Weathering Resistance of Waterborne Polyurethane Coatings Reinforced with Silica from Rice Husk Ash
spellingShingle Weathering Resistance of Waterborne Polyurethane Coatings Reinforced with Silica from Rice Husk Ash
MONTEIRO,WESLEY F.
waterborne polyurethane
rice husk ash
silica
accelerated weathering resistance
title_short Weathering Resistance of Waterborne Polyurethane Coatings Reinforced with Silica from Rice Husk Ash
title_full Weathering Resistance of Waterborne Polyurethane Coatings Reinforced with Silica from Rice Husk Ash
title_fullStr Weathering Resistance of Waterborne Polyurethane Coatings Reinforced with Silica from Rice Husk Ash
title_full_unstemmed Weathering Resistance of Waterborne Polyurethane Coatings Reinforced with Silica from Rice Husk Ash
title_sort Weathering Resistance of Waterborne Polyurethane Coatings Reinforced with Silica from Rice Husk Ash
author MONTEIRO,WESLEY F.
author_facet MONTEIRO,WESLEY F.
MIRANDA,GABRIELA M.
SOARES,RAFAEL R.
SANTOS,CLÁUDIA A.B. DOS
HOFFMANN,MAURÍCIO S.
CARONE,CARLOS L.P.
LIMA,VIVIANE DE
SOUZA,MILTON F. DE
CAMPANI,ADRIANO D.
EINLOFT,SANDRA M.O.
LIMA,JEANE E. DE
LIGABUE,ROSANE A.
author_role author
author2 MIRANDA,GABRIELA M.
SOARES,RAFAEL R.
SANTOS,CLÁUDIA A.B. DOS
HOFFMANN,MAURÍCIO S.
CARONE,CARLOS L.P.
LIMA,VIVIANE DE
SOUZA,MILTON F. DE
CAMPANI,ADRIANO D.
EINLOFT,SANDRA M.O.
LIMA,JEANE E. DE
LIGABUE,ROSANE A.
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv MONTEIRO,WESLEY F.
MIRANDA,GABRIELA M.
SOARES,RAFAEL R.
SANTOS,CLÁUDIA A.B. DOS
HOFFMANN,MAURÍCIO S.
CARONE,CARLOS L.P.
LIMA,VIVIANE DE
SOUZA,MILTON F. DE
CAMPANI,ADRIANO D.
EINLOFT,SANDRA M.O.
LIMA,JEANE E. DE
LIGABUE,ROSANE A.
dc.subject.por.fl_str_mv waterborne polyurethane
rice husk ash
silica
accelerated weathering resistance
topic waterborne polyurethane
rice husk ash
silica
accelerated weathering resistance
description Abstract: Waterborne polyurethanes (WPUs) are interesting materials for coatings when compared to solvent-based polyurethanes, once that reducing the concentration of volatile organic compounds that are harmful for human health and the environment. However, the WPU has low weathering resistance. In order to improve this behavior among others properties, inorganic fillers has been added in these systems. SiO2 particles from various sources, mainly, from agro-industrial waste, as rice husk has attracted the scientific and technological interest. In this study, the accelerated weathering essay was performed in waterborne polyurethane (WPU)/ silica (from rice husk ash) composites in order to evaluate the thermal and physical changes in these materials. These composites were prepared by two distinct methods: in situ polymerization and blending method. The highest resistance to thermal degradation and to accelerated weathering was reached with WPU/silica composites obtained by blending method due the interactions between SiO2 particles and the polymer matrices. Blending method for preparation WPU/silica composites proved to be a simpler and faster method, with no drawback for large scale application.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700403
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700403
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0001-3765201920181190
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Academia Brasileira de Ciências
publisher.none.fl_str_mv Academia Brasileira de Ciências
dc.source.none.fl_str_mv Anais da Academia Brasileira de Ciências v.91 n.4 2019
reponame:Anais da Academia Brasileira de Ciências (Online)
instname:Academia Brasileira de Ciências (ABC)
instacron:ABC
instname_str Academia Brasileira de Ciências (ABC)
instacron_str ABC
institution ABC
reponame_str Anais da Academia Brasileira de Ciências (Online)
collection Anais da Academia Brasileira de Ciências (Online)
repository.name.fl_str_mv Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)
repository.mail.fl_str_mv ||aabc@abc.org.br
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