Preparation of polyurethane monolithic resins and modification with a condensed tannin-yielding self-healing property

Detalhes bibliográficos
Autor(a) principal: Nardeli, Jéssica Verger [UNESP]
Data de Publicação: 2019
Outros Autores: Fugivara, Cecílio Sadao [UNESP], Pinto, Elaine Ruzgus Pereira [UNESP], Polito, Wagner Luiz [UNESP], Messaddeq, Younes [UNESP], Ribeiro, Sidney José Lima [UNESP], Benedetti, Assis Vicente [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.3390/polym11111890
http://hdl.handle.net/11449/199713
Resumo: Resins of polyurethane were prepared from vegetable oils (crambe and castor) and modified by adding green corrosion inhibitor (condensed tannin). The oils were characterized by gas chromatography with flame-ionization detection (GC-FID), attenuated total reflectance Fourier transform infrared spectroscopy (FTIR-ATR) and thermogravimetric analysis (TGA). The reaction was monitored by characterizing the intermediate products (polyester and prepolymer). The polyester was characterized by solubility in methanol, acidity index, hydroxyl groups and FTIR-ATR, and the prepolymer was characterized by solid content, solvent content, isocyanate (NCO) groups and FTIR-ATR. The formation of PU resins was confirmed by FTIR-ATR and TGA, and the presence of tannin particles incorporated in the coating can be observed by optical microscopy (OM). The absence of the band attributed to NCO in FTIR-ATR spectra of the resins confirmed the complete reaction between polyester and prepolymer. The OM observation and a video demonstrate that Polyurethane (PU)-modified with condensed tannin resin presents self-healing effect, probably through the formation of new hydrogen bonds when in contact with deionized water. Therefore, these results open possibilities for new synthetic routes aiming at improving the very important self-healing property for protecting metals and their alloys against corrosion, extending significantly the metallic materials lifetime as previously demonstrated by our group.
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spelling Preparation of polyurethane monolithic resins and modification with a condensed tannin-yielding self-healing propertyCastor oilCondensed tanninCondensed tannin-modified PU resinCrambe oilPolyurethane resinsSelf-healingResins of polyurethane were prepared from vegetable oils (crambe and castor) and modified by adding green corrosion inhibitor (condensed tannin). The oils were characterized by gas chromatography with flame-ionization detection (GC-FID), attenuated total reflectance Fourier transform infrared spectroscopy (FTIR-ATR) and thermogravimetric analysis (TGA). The reaction was monitored by characterizing the intermediate products (polyester and prepolymer). The polyester was characterized by solubility in methanol, acidity index, hydroxyl groups and FTIR-ATR, and the prepolymer was characterized by solid content, solvent content, isocyanate (NCO) groups and FTIR-ATR. The formation of PU resins was confirmed by FTIR-ATR and TGA, and the presence of tannin particles incorporated in the coating can be observed by optical microscopy (OM). The absence of the band attributed to NCO in FTIR-ATR spectra of the resins confirmed the complete reaction between polyester and prepolymer. The OM observation and a video demonstrate that Polyurethane (PU)-modified with condensed tannin resin presents self-healing effect, probably through the formation of new hydrogen bonds when in contact with deionized water. Therefore, these results open possibilities for new synthetic routes aiming at improving the very important self-healing property for protecting metals and their alloys against corrosion, extending significantly the metallic materials lifetime as previously demonstrated by our group.Department of Physical-chemistry Institute of Chemistry São Paulo State University (UNESP), PO Box 355Department of General and Inorganic Chemistry Institute of Chemistry São Paulo State University (UNESP), PO Box 355Department of Physical-chemistry Institute of Chemistry São Paulo State University (UNESP), PO Box 355Department of General and Inorganic Chemistry Institute of Chemistry São Paulo State University (UNESP), PO Box 355Universidade Estadual Paulista (Unesp)Nardeli, Jéssica Verger [UNESP]Fugivara, Cecílio Sadao [UNESP]Pinto, Elaine Ruzgus Pereira [UNESP]Polito, Wagner Luiz [UNESP]Messaddeq, Younes [UNESP]Ribeiro, Sidney José Lima [UNESP]Benedetti, Assis Vicente [UNESP]2020-12-12T01:47:14Z2020-12-12T01:47:14Z2019-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.3390/polym11111890Polymers, v. 11, n. 11, 2019.2073-4360http://hdl.handle.net/11449/19971310.3390/polym111118902-s2.0-85075568160Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPolymersinfo:eu-repo/semantics/openAccess2021-10-23T09:06:18Zoai:repositorio.unesp.br:11449/199713Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:43:54.265587Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Preparation of polyurethane monolithic resins and modification with a condensed tannin-yielding self-healing property
title Preparation of polyurethane monolithic resins and modification with a condensed tannin-yielding self-healing property
spellingShingle Preparation of polyurethane monolithic resins and modification with a condensed tannin-yielding self-healing property
Nardeli, Jéssica Verger [UNESP]
Castor oil
Condensed tannin
Condensed tannin-modified PU resin
Crambe oil
Polyurethane resins
Self-healing
title_short Preparation of polyurethane monolithic resins and modification with a condensed tannin-yielding self-healing property
title_full Preparation of polyurethane monolithic resins and modification with a condensed tannin-yielding self-healing property
title_fullStr Preparation of polyurethane monolithic resins and modification with a condensed tannin-yielding self-healing property
title_full_unstemmed Preparation of polyurethane monolithic resins and modification with a condensed tannin-yielding self-healing property
title_sort Preparation of polyurethane monolithic resins and modification with a condensed tannin-yielding self-healing property
author Nardeli, Jéssica Verger [UNESP]
author_facet Nardeli, Jéssica Verger [UNESP]
Fugivara, Cecílio Sadao [UNESP]
Pinto, Elaine Ruzgus Pereira [UNESP]
Polito, Wagner Luiz [UNESP]
Messaddeq, Younes [UNESP]
Ribeiro, Sidney José Lima [UNESP]
Benedetti, Assis Vicente [UNESP]
author_role author
author2 Fugivara, Cecílio Sadao [UNESP]
Pinto, Elaine Ruzgus Pereira [UNESP]
Polito, Wagner Luiz [UNESP]
Messaddeq, Younes [UNESP]
Ribeiro, Sidney José Lima [UNESP]
Benedetti, Assis Vicente [UNESP]
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Nardeli, Jéssica Verger [UNESP]
Fugivara, Cecílio Sadao [UNESP]
Pinto, Elaine Ruzgus Pereira [UNESP]
Polito, Wagner Luiz [UNESP]
Messaddeq, Younes [UNESP]
Ribeiro, Sidney José Lima [UNESP]
Benedetti, Assis Vicente [UNESP]
dc.subject.por.fl_str_mv Castor oil
Condensed tannin
Condensed tannin-modified PU resin
Crambe oil
Polyurethane resins
Self-healing
topic Castor oil
Condensed tannin
Condensed tannin-modified PU resin
Crambe oil
Polyurethane resins
Self-healing
description Resins of polyurethane were prepared from vegetable oils (crambe and castor) and modified by adding green corrosion inhibitor (condensed tannin). The oils were characterized by gas chromatography with flame-ionization detection (GC-FID), attenuated total reflectance Fourier transform infrared spectroscopy (FTIR-ATR) and thermogravimetric analysis (TGA). The reaction was monitored by characterizing the intermediate products (polyester and prepolymer). The polyester was characterized by solubility in methanol, acidity index, hydroxyl groups and FTIR-ATR, and the prepolymer was characterized by solid content, solvent content, isocyanate (NCO) groups and FTIR-ATR. The formation of PU resins was confirmed by FTIR-ATR and TGA, and the presence of tannin particles incorporated in the coating can be observed by optical microscopy (OM). The absence of the band attributed to NCO in FTIR-ATR spectra of the resins confirmed the complete reaction between polyester and prepolymer. The OM observation and a video demonstrate that Polyurethane (PU)-modified with condensed tannin resin presents self-healing effect, probably through the formation of new hydrogen bonds when in contact with deionized water. Therefore, these results open possibilities for new synthetic routes aiming at improving the very important self-healing property for protecting metals and their alloys against corrosion, extending significantly the metallic materials lifetime as previously demonstrated by our group.
publishDate 2019
dc.date.none.fl_str_mv 2019-11-01
2020-12-12T01:47:14Z
2020-12-12T01:47:14Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.3390/polym11111890
Polymers, v. 11, n. 11, 2019.
2073-4360
http://hdl.handle.net/11449/199713
10.3390/polym11111890
2-s2.0-85075568160
url http://dx.doi.org/10.3390/polym11111890
http://hdl.handle.net/11449/199713
identifier_str_mv Polymers, v. 11, n. 11, 2019.
2073-4360
10.3390/polym11111890
2-s2.0-85075568160
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Polymers
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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