Mechanical characterization of sol–gel epoxy-silylatedhyperbranched poly(ethyleneimine) coatings by meansof Depth Sensing Indentation methods

A series of hybrid epoxy-silica coatings were prepared from a synthesized hyperbranched poly(ethyleneimine) with ethoxysilyl groups at the chain ends and diglycidylether of bisphenol A in different proportions. The curing procedure was based in a first sol-gel reaction performed at 80 °C in a humid...

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Autores: Vicente, Lorenzo, Acebo Gorostiza, Cristina, Ramis Juan, Xavier|||0000-0003-2550-7185, Serra Albet, Maria Àngels|||0000-0003-1387-0358
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/101142
Acceso en línea:https://hdl.handle.net/2117/101142
https://dx.doi.org/10.1016/j.porgcoat.2015.11.017
Access Level:acceso abierto
Palabra clave:Epoxy resins
Sol–gel
Hybrids
Hyperbranched
Epoxy coatings
Indentation
Mechanical properties
Resines epoxídiques
Àrees temàtiques de la UPC::Enginyeria dels materials::Materials plàstics i polímers
id ES_c2b0adb9eb30c4f078ab01cd83fa33bc
oai_identifier_str oai:upcommons.upc.edu:2117/101142
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repository_id_str
spelling Mechanical characterization of sol–gel epoxy-silylatedhyperbranched poly(ethyleneimine) coatings by meansof Depth Sensing Indentation methodsVicente, LorenzoAcebo Gorostiza, CristinaRamis Juan, Xavier|||0000-0003-2550-7185Serra Albet, Maria Àngels|||0000-0003-1387-0358Epoxy resinsSol–gelHybridsHyperbranchedEpoxy coatingsIndentationMechanical propertiesResines epoxídiquesÀrees temàtiques de la UPC::Enginyeria dels materials::Materials plàstics i polímersA series of hybrid epoxy-silica coatings were prepared from a synthesized hyperbranched poly(ethyleneimine) with ethoxysilyl groups at the chain ends and diglycidylether of bisphenol A in different proportions. The curing procedure was based in a first sol-gel reaction performed at 80 °C in a humid chamber followed by the anionic homopolymerization of epoxides initiated by 1-methylimidazole in an oven at 180 °C. The prepared coatings were characterized mechanically by means of Depth Sensing Indentation technique. The influence of physical ageing on indentation hardness has been evaluated. The kinetic of the delayed depth recovery has been analyzed using the phenomenological so-called Kohlrausch-Williams-Watts relaxation function. It has been found that silylated hyperbranched poly(ethyleneimine) improves simultaneously the mechanical coating performance and the elastic recovery.20162016-03-0120172017-02-16journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/101142https://dx.doi.org/10.1016/j.porgcoat.2015.11.017reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2http://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1011422026-05-27T15:37:01Z
dc.title.none.fl_str_mv Mechanical characterization of sol–gel epoxy-silylatedhyperbranched poly(ethyleneimine) coatings by meansof Depth Sensing Indentation methods
title Mechanical characterization of sol–gel epoxy-silylatedhyperbranched poly(ethyleneimine) coatings by meansof Depth Sensing Indentation methods
spellingShingle Mechanical characterization of sol–gel epoxy-silylatedhyperbranched poly(ethyleneimine) coatings by meansof Depth Sensing Indentation methods
Vicente, Lorenzo
Epoxy resins
Sol–gel
Hybrids
Hyperbranched
Epoxy coatings
Indentation
Mechanical properties
Resines epoxídiques
Àrees temàtiques de la UPC::Enginyeria dels materials::Materials plàstics i polímers
title_short Mechanical characterization of sol–gel epoxy-silylatedhyperbranched poly(ethyleneimine) coatings by meansof Depth Sensing Indentation methods
title_full Mechanical characterization of sol–gel epoxy-silylatedhyperbranched poly(ethyleneimine) coatings by meansof Depth Sensing Indentation methods
title_fullStr Mechanical characterization of sol–gel epoxy-silylatedhyperbranched poly(ethyleneimine) coatings by meansof Depth Sensing Indentation methods
title_full_unstemmed Mechanical characterization of sol–gel epoxy-silylatedhyperbranched poly(ethyleneimine) coatings by meansof Depth Sensing Indentation methods
title_sort Mechanical characterization of sol–gel epoxy-silylatedhyperbranched poly(ethyleneimine) coatings by meansof Depth Sensing Indentation methods
dc.creator.none.fl_str_mv Vicente, Lorenzo
Acebo Gorostiza, Cristina
Ramis Juan, Xavier|||0000-0003-2550-7185
Serra Albet, Maria Àngels|||0000-0003-1387-0358
author Vicente, Lorenzo
author_facet Vicente, Lorenzo
Acebo Gorostiza, Cristina
Ramis Juan, Xavier|||0000-0003-2550-7185
Serra Albet, Maria Àngels|||0000-0003-1387-0358
author_role author
author2 Acebo Gorostiza, Cristina
Ramis Juan, Xavier|||0000-0003-2550-7185
Serra Albet, Maria Àngels|||0000-0003-1387-0358
author2_role author
author
author
dc.subject.none.fl_str_mv Epoxy resins
Sol–gel
Hybrids
Hyperbranched
Epoxy coatings
Indentation
Mechanical properties
Resines epoxídiques
Àrees temàtiques de la UPC::Enginyeria dels materials::Materials plàstics i polímers
topic Epoxy resins
Sol–gel
Hybrids
Hyperbranched
Epoxy coatings
Indentation
Mechanical properties
Resines epoxídiques
Àrees temàtiques de la UPC::Enginyeria dels materials::Materials plàstics i polímers
description A series of hybrid epoxy-silica coatings were prepared from a synthesized hyperbranched poly(ethyleneimine) with ethoxysilyl groups at the chain ends and diglycidylether of bisphenol A in different proportions. The curing procedure was based in a first sol-gel reaction performed at 80 °C in a humid chamber followed by the anionic homopolymerization of epoxides initiated by 1-methylimidazole in an oven at 180 °C. The prepared coatings were characterized mechanically by means of Depth Sensing Indentation technique. The influence of physical ageing on indentation hardness has been evaluated. The kinetic of the delayed depth recovery has been analyzed using the phenomenological so-called Kohlrausch-Williams-Watts relaxation function. It has been found that silylated hyperbranched poly(ethyleneimine) improves simultaneously the mechanical coating performance and the elastic recovery.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-03-01
2017
2017-02-16
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/101142
https://dx.doi.org/10.1016/j.porgcoat.2015.11.017
url https://hdl.handle.net/2117/101142
https://dx.doi.org/10.1016/j.porgcoat.2015.11.017
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2

http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2

http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300724

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