Hybrid urethanesil coatings for inorganic surfaces produced by isocyanate-free and sol-gel routes: synthesis and characterization
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1039/c5ra24331a http://hdl.handle.net/11449/158714 |
Resumo: | A simple and versatile route for the preparation of self-adhesive, corrosion-resistant and photochromic hybrid coatings is presented in this paper. The coatings are based on aliphatic poly(dimethylsiloxane)-derived hydroxyurethanes (PDMSUr), produced by the isocyanate-free route for inorganic substrates such as glass and metal alloys. This route involves the ring opening polymerization of a PDMS-derived bis(cyclic carbonate) (CCPDMS) with diamines and aminosilane. The cyclic carbonate was synthesized by cycloaddition of CO2 into a PDMS diglycidyl ether. The use of aminosilanes with CCPDMS enables hybrid organic-inorganic urethanic coatings to be obtained by the sol-gel process. The crystallinity of the coating can be easily controlled through the interplay of the ratio of monoamines and diamines in the formulation. The hybrid PDMSUr materials were tested as an adhesive/coating for metallic and glazed surfaces, presenting adhesion strengths of up to 7 MPa and a maximum usage temperature of 160 degrees C. The incorporation of phosphotungstic acid (PWA) produced a hard material (20-60 MPa) and the elastic modulus rose by more than a hundred times as the PWA content increased. The hybrid PDMSUr 2_35% PWA presented photochromic properties and is suitable as an adhesive and impact damping layer for laminated glass used for smart window production. Furthermore, these coatings are suitable for the protection of metallic substrates against corrosion in acidic, basic and seawater media. |
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Hybrid urethanesil coatings for inorganic surfaces produced by isocyanate-free and sol-gel routes: synthesis and characterizationA simple and versatile route for the preparation of self-adhesive, corrosion-resistant and photochromic hybrid coatings is presented in this paper. The coatings are based on aliphatic poly(dimethylsiloxane)-derived hydroxyurethanes (PDMSUr), produced by the isocyanate-free route for inorganic substrates such as glass and metal alloys. This route involves the ring opening polymerization of a PDMS-derived bis(cyclic carbonate) (CCPDMS) with diamines and aminosilane. The cyclic carbonate was synthesized by cycloaddition of CO2 into a PDMS diglycidyl ether. The use of aminosilanes with CCPDMS enables hybrid organic-inorganic urethanic coatings to be obtained by the sol-gel process. The crystallinity of the coating can be easily controlled through the interplay of the ratio of monoamines and diamines in the formulation. The hybrid PDMSUr materials were tested as an adhesive/coating for metallic and glazed surfaces, presenting adhesion strengths of up to 7 MPa and a maximum usage temperature of 160 degrees C. The incorporation of phosphotungstic acid (PWA) produced a hard material (20-60 MPa) and the elastic modulus rose by more than a hundred times as the PWA content increased. The hybrid PDMSUr 2_35% PWA presented photochromic properties and is suitable as an adhesive and impact damping layer for laminated glass used for smart window production. Furthermore, these coatings are suitable for the protection of metallic substrates against corrosion in acidic, basic and seawater media.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Univ Sao Paulo, Inst Chem Sao Carlos, BR-13563120 Sao Carlos, SP, BrazilUniv Fed Parana, Dept Phys, BR-81531980 Curitiba, PR, BrazilUniv Sao Paulo, Inst Phys Sao Carlos, BR-13566590 Sao Carlos, SP, BrazilState Univ Julio de Mesquita Filho, Engn Fac, Ilha Solteira, SP, BrazilFraunhofer Inst Mfg Technol & Adv Mat IFAM, D-28359 Bremen, GermanyState Univ Julio de Mesquita Filho, Engn Fac, Ilha Solteira, SP, BrazilFAPESP: 2011/06019-0FAPESP: 2013/05279-3FAPESP: 2011/08120-0CAPES: 57060300Royal Soc ChemistryUniversidade de São Paulo (USP)Univ Fed ParanaUniversidade Estadual Paulista (Unesp)Fraunhofer Inst Mfg Technol & Adv Mat IFAMAguiar, K. M. F. Rossi deFerreira-Neto, E. P.Blunk, S.Schneider, J. F.Picon, C. A. [UNESP]Lepienski, C. M.Rischka, K.Rodrigues-Filho, U. P.2018-11-26T15:28:44Z2018-11-26T15:28:44Z2016-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article19160-19172http://dx.doi.org/10.1039/c5ra24331aRsc Advances. Cambridge: Royal Soc Chemistry, v. 6, n. 23, p. 19160-19172, 2016.2046-2069http://hdl.handle.net/11449/15871410.1039/c5ra24331aWOS:000370710500048Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRsc Advances0,863info:eu-repo/semantics/openAccess2021-10-23T17:37:32Zoai:repositorio.unesp.br:11449/158714Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T17:37:32Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Hybrid urethanesil coatings for inorganic surfaces produced by isocyanate-free and sol-gel routes: synthesis and characterization |
title |
Hybrid urethanesil coatings for inorganic surfaces produced by isocyanate-free and sol-gel routes: synthesis and characterization |
spellingShingle |
Hybrid urethanesil coatings for inorganic surfaces produced by isocyanate-free and sol-gel routes: synthesis and characterization Aguiar, K. M. F. Rossi de |
title_short |
Hybrid urethanesil coatings for inorganic surfaces produced by isocyanate-free and sol-gel routes: synthesis and characterization |
title_full |
Hybrid urethanesil coatings for inorganic surfaces produced by isocyanate-free and sol-gel routes: synthesis and characterization |
title_fullStr |
Hybrid urethanesil coatings for inorganic surfaces produced by isocyanate-free and sol-gel routes: synthesis and characterization |
title_full_unstemmed |
Hybrid urethanesil coatings for inorganic surfaces produced by isocyanate-free and sol-gel routes: synthesis and characterization |
title_sort |
Hybrid urethanesil coatings for inorganic surfaces produced by isocyanate-free and sol-gel routes: synthesis and characterization |
author |
Aguiar, K. M. F. Rossi de |
author_facet |
Aguiar, K. M. F. Rossi de Ferreira-Neto, E. P. Blunk, S. Schneider, J. F. Picon, C. A. [UNESP] Lepienski, C. M. Rischka, K. Rodrigues-Filho, U. P. |
author_role |
author |
author2 |
Ferreira-Neto, E. P. Blunk, S. Schneider, J. F. Picon, C. A. [UNESP] Lepienski, C. M. Rischka, K. Rodrigues-Filho, U. P. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Univ Fed Parana Universidade Estadual Paulista (Unesp) Fraunhofer Inst Mfg Technol & Adv Mat IFAM |
dc.contributor.author.fl_str_mv |
Aguiar, K. M. F. Rossi de Ferreira-Neto, E. P. Blunk, S. Schneider, J. F. Picon, C. A. [UNESP] Lepienski, C. M. Rischka, K. Rodrigues-Filho, U. P. |
description |
A simple and versatile route for the preparation of self-adhesive, corrosion-resistant and photochromic hybrid coatings is presented in this paper. The coatings are based on aliphatic poly(dimethylsiloxane)-derived hydroxyurethanes (PDMSUr), produced by the isocyanate-free route for inorganic substrates such as glass and metal alloys. This route involves the ring opening polymerization of a PDMS-derived bis(cyclic carbonate) (CCPDMS) with diamines and aminosilane. The cyclic carbonate was synthesized by cycloaddition of CO2 into a PDMS diglycidyl ether. The use of aminosilanes with CCPDMS enables hybrid organic-inorganic urethanic coatings to be obtained by the sol-gel process. The crystallinity of the coating can be easily controlled through the interplay of the ratio of monoamines and diamines in the formulation. The hybrid PDMSUr materials were tested as an adhesive/coating for metallic and glazed surfaces, presenting adhesion strengths of up to 7 MPa and a maximum usage temperature of 160 degrees C. The incorporation of phosphotungstic acid (PWA) produced a hard material (20-60 MPa) and the elastic modulus rose by more than a hundred times as the PWA content increased. The hybrid PDMSUr 2_35% PWA presented photochromic properties and is suitable as an adhesive and impact damping layer for laminated glass used for smart window production. Furthermore, these coatings are suitable for the protection of metallic substrates against corrosion in acidic, basic and seawater media. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01-01 2018-11-26T15:28:44Z 2018-11-26T15:28:44Z |
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/10.1039/c5ra24331a Rsc Advances. Cambridge: Royal Soc Chemistry, v. 6, n. 23, p. 19160-19172, 2016. 2046-2069 http://hdl.handle.net/11449/158714 10.1039/c5ra24331a WOS:000370710500048 |
url |
http://dx.doi.org/10.1039/c5ra24331a http://hdl.handle.net/11449/158714 |
identifier_str_mv |
Rsc Advances. Cambridge: Royal Soc Chemistry, v. 6, n. 23, p. 19160-19172, 2016. 2046-2069 10.1039/c5ra24331a WOS:000370710500048 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Rsc Advances 0,863 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
19160-19172 |
dc.publisher.none.fl_str_mv |
Royal Soc Chemistry |
publisher.none.fl_str_mv |
Royal Soc Chemistry |
dc.source.none.fl_str_mv |
Web of Science 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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