Development of self-contained microcapsules for optimised catalyst position in self-healing materials

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dc.contributor.authorRodriguez, Raquel
dc.contributor.authorBekas, Dimitrios G.
dc.contributor.authorFlórez, Sonia
dc.contributor.authorKosarli, Maria
dc.contributor.authorPaipetis, Alkiviadis S.
dc.contributor.institutionPOLIMEROS
dc.date.issued2020-01-20
dc.descriptionPublisher Copyright: © 2019 Elsevier Ltd
dc.description.abstractSelf-contained microcapsules for use in self-healing epoxy resin are successfully synthesized by suspension polymerization process. The microencapsulation of an epoxy resin using Polymethylmethacrylate (PMMA) as a shell material and the location of scandium triflate (Sc(OTf)3) as the catalyst into microcapsules shell during the microencapsulation processes is presented (PMMA/Sc(OTf)3-walled microcapsules). Spherical microcapsules of 80 μm in diameter with a liquid core content of 30 wt% (determined by HPLC) are produced. Catalyst location on microcapsules are assessed qualitatively by SEM-EADS and quantitatively by TGA showing high yields (⁓70 wt%). The evaluation of the healing efficiency was assessed in terms of fracture toughness recovery. PMMA/Sc(OTf)3-walled microcapsules showed an increased healing efficiency than that of conventional PMMA-walled capsule. The healing efficiency of the PMMA-walled capsules was 46.7 and 55.1% when the system healed at 80 and 120 °C, respectively. However, in the case of PMMA/Sc(OTf)3-walled microcapsules healing efficiency increased to 57.5 and 79.1% for the same healing temperatures.en
dc.description.statusPeer reviewed
dc.format.extent1
dc.format.extent1416299
dc.identifier.citationRodriguez , R , Bekas , D G , Flórez , S , Kosarli , M & Paipetis , A S 2020 , ' Development of self-contained microcapsules for optimised catalyst position in self-healing materials ' , Polymer , vol. 187 , 122084 , pp. 122084 . https://doi.org/10.1016/j.polymer.2019.122084
dc.identifier.doi10.1016/j.polymer.2019.122084
dc.identifier.issn0032-3861
dc.identifier.otherresearchoutputwizard: 11556/859
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85076858539&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofPolymer
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsMicrocapsules
dc.subject.keywordsSelf-contained
dc.subject.keywordsSelf-healing
dc.subject.keywordsSuspension polymerization
dc.subject.keywordsMicrocapsules
dc.subject.keywordsSelf-contained
dc.subject.keywordsSelf-healing
dc.subject.keywordsSuspension polymerization
dc.subject.keywordsOrganic Chemistry
dc.subject.keywordsPolymers and Plastics
dc.subject.keywordsMaterials Chemistry
dc.subject.keywordsProject ID
dc.subject.keywordsinfo:eu-repo/grantAgreement/EC/FP7/605412/EU/SELF-HEALING POLYMERS FOR CONCEPTS ON SELF-REPAIRED AERONAUTICAL COMPOSITES/HIPOCRATES
dc.subject.keywordsinfo:eu-repo/grantAgreement/EC/FP7/605412/EU/SELF-HEALING POLYMERS FOR CONCEPTS ON SELF-REPAIRED AERONAUTICAL COMPOSITES/HIPOCRATES
dc.subject.keywordsFunding Info
dc.subject.keywordsEuropean Commission, FP7, 605412, HIPOCRATES
dc.subject.keywordsEuropean Commission, FP7, 605412, HIPOCRATES
dc.titleDevelopment of self-contained microcapsules for optimised catalyst position in self-healing materialsen
dc.typejournal article
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