Epoxy Doped, Nano-scale Phase-separated Poly-Acrylates with Potential in 3D Printing

An efficient method to improve the mechanical performance of a commercially available photocure resin is described wherein the resin is modified with a mixture of a cycloaliphatic epoxy and an anhydride curing agent. Photocured samples are thermally treated in a subsequent step to cure the epoxy to...

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Detalhes bibliográficos
Autores: Konuray, Ali Osman|||0000-0001-7281-006X, Bonada Bo, Jordi|||0000-0002-4495-2295, Fernández Francos, Xavier|||0000-0002-3492-2922, Ramis Juan, Xavier|||0000-0003-2550-7185
Formato: artículo
Fecha de publicación:2021
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/362067
Acesso em linha:https://hdl.handle.net/2117/362067
https://dx.doi.org/10.1002/mame.202000558
Access Level:acceso abierto
Palavra-chave:3D-printing
Polymers
Cycloaliphatic epoxy
3-D printing
Epoxy doped
Impressió 3D
Polímers
Àrees temàtiques de la UPC::Física
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oai_identifier_str oai:upcommons.upc.edu:2117/362067
network_acronym_str ES
network_name_str España
repository_id_str
spelling Epoxy Doped, Nano-scale Phase-separated Poly-Acrylates with Potential in 3D PrintingKonuray, Ali Osman|||0000-0001-7281-006XBonada Bo, Jordi|||0000-0002-4495-2295Fernández Francos, Xavier|||0000-0002-3492-2922Ramis Juan, Xavier|||0000-0003-2550-71853D-printingPolymersCycloaliphatic epoxy3-D printingEpoxy dopedImpressió 3DPolímersÀrees temàtiques de la UPC::FísicaAn efficient method to improve the mechanical performance of a commercially available photocure resin is described wherein the resin is modified with a mixture of a cycloaliphatic epoxy and an anhydride curing agent. Photocured samples are thermally treated in a subsequent step to cure the epoxy to obtain an interpenetrated polymer network (IPN) and also complete reaction of the acrylate monomers remaining from the photocure. The latter is accomplished by a thermal radical initiator added earlier into the formulation together with the epoxy-anhydride. The thermal properties and microstructure of the resulting IPN are analyzed. Uniform and quantitative conversions are obtained, with glass transition temperatures comparable to conventional epoxies. The liquid, uncured samples containing different amounts of epoxy are stable at 30 °C for several weeks. In the fully cured epoxy-rich materials, nano-scale phase separation is observed by atomic force microscopy. This is corroborated by the existence of multiple relaxations determined by dynamic mechanical analysis analysis. Specimens from a formulation containing 50% by weight of epoxy-anhydride are 3D printed in a customized masked image processing stereolithography, thermally treated, and are subjected to compression tests. Results show that Young's modulus increases by 900% over the neat resinPeer Reviewed20212021-01-0120222022-02-09journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/362067https://dx.doi.org/10.1002/mame.202000558reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3620672026-05-27T15:37:01Z
dc.title.none.fl_str_mv Epoxy Doped, Nano-scale Phase-separated Poly-Acrylates with Potential in 3D Printing
title Epoxy Doped, Nano-scale Phase-separated Poly-Acrylates with Potential in 3D Printing
spellingShingle Epoxy Doped, Nano-scale Phase-separated Poly-Acrylates with Potential in 3D Printing
Konuray, Ali Osman|||0000-0001-7281-006X
3D-printing
Polymers
Cycloaliphatic epoxy
3-D printing
Epoxy doped
Impressió 3D
Polímers
Àrees temàtiques de la UPC::Física
title_short Epoxy Doped, Nano-scale Phase-separated Poly-Acrylates with Potential in 3D Printing
title_full Epoxy Doped, Nano-scale Phase-separated Poly-Acrylates with Potential in 3D Printing
title_fullStr Epoxy Doped, Nano-scale Phase-separated Poly-Acrylates with Potential in 3D Printing
title_full_unstemmed Epoxy Doped, Nano-scale Phase-separated Poly-Acrylates with Potential in 3D Printing
title_sort Epoxy Doped, Nano-scale Phase-separated Poly-Acrylates with Potential in 3D Printing
dc.creator.none.fl_str_mv Konuray, Ali Osman|||0000-0001-7281-006X
Bonada Bo, Jordi|||0000-0002-4495-2295
Fernández Francos, Xavier|||0000-0002-3492-2922
Ramis Juan, Xavier|||0000-0003-2550-7185
author Konuray, Ali Osman|||0000-0001-7281-006X
author_facet Konuray, Ali Osman|||0000-0001-7281-006X
Bonada Bo, Jordi|||0000-0002-4495-2295
Fernández Francos, Xavier|||0000-0002-3492-2922
Ramis Juan, Xavier|||0000-0003-2550-7185
author_role author
author2 Bonada Bo, Jordi|||0000-0002-4495-2295
Fernández Francos, Xavier|||0000-0002-3492-2922
Ramis Juan, Xavier|||0000-0003-2550-7185
author2_role author
author
author
dc.subject.none.fl_str_mv 3D-printing
Polymers
Cycloaliphatic epoxy
3-D printing
Epoxy doped
Impressió 3D
Polímers
Àrees temàtiques de la UPC::Física
topic 3D-printing
Polymers
Cycloaliphatic epoxy
3-D printing
Epoxy doped
Impressió 3D
Polímers
Àrees temàtiques de la UPC::Física
description An efficient method to improve the mechanical performance of a commercially available photocure resin is described wherein the resin is modified with a mixture of a cycloaliphatic epoxy and an anhydride curing agent. Photocured samples are thermally treated in a subsequent step to cure the epoxy to obtain an interpenetrated polymer network (IPN) and also complete reaction of the acrylate monomers remaining from the photocure. The latter is accomplished by a thermal radical initiator added earlier into the formulation together with the epoxy-anhydride. The thermal properties and microstructure of the resulting IPN are analyzed. Uniform and quantitative conversions are obtained, with glass transition temperatures comparable to conventional epoxies. The liquid, uncured samples containing different amounts of epoxy are stable at 30 °C for several weeks. In the fully cured epoxy-rich materials, nano-scale phase separation is observed by atomic force microscopy. This is corroborated by the existence of multiple relaxations determined by dynamic mechanical analysis analysis. Specimens from a formulation containing 50% by weight of epoxy-anhydride are 3D printed in a customized masked image processing stereolithography, thermally treated, and are subjected to compression tests. Results show that Young's modulus increases by 900% over the neat resin
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-01-01
2022
2022-02-09
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/362067
https://dx.doi.org/10.1002/mame.202000558
url https://hdl.handle.net/2117/362067
https://dx.doi.org/10.1002/mame.202000558
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
Attribution-NonCommercial-NoDerivs 3.0 Spain
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
Attribution-NonCommercial-NoDerivs 3.0 Spain
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
_version_ 1869419876069670912
score 15,300724

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