Tailoring the mechanical, thermal, and flammability properties of high-performance PEI/PBT blends exhibiting dual-phase continuity

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dc.citation.journalTitlePolymerspa
dc.contributor.authorVásquez-Rendón M.
dc.contributor.authorÁlvarez-Láinez M.L.
dc.contributor.departmentUniversidad EAFIT. Departamento de Ingeniería de Diseño
dc.contributor.researchgroupIngeniería de Diseño (GRID)spa
dc.date.accessioned2021-04-12T21:15:02Z
dc.date.available2021-04-12T21:15:02Z
dc.date.issued2018-10-10
dc.description.abstractBinary PEI/PBT blends are prepared using a two-step melt processing method. Miscibility study by MDSC and DMA reveals partial miscibility, and new evidence on the morphological evolution of PEI/PBT blends is presented. Two groups of blends are recognized: PBT-rich blends and PEI-rich blends, as well as phase inversion at concentrations close to 50 wt% of PEI. Mechanical, thermal, and flame resistance performance is influenced by blends morphology, and an opportunity for tailoring blends properties is recognized. Tensile modulus shows synergic contribution for 50/50 and 80/20 blends and yield strength is strongly affected by interfacial adherence between constituents. In addition, elongation at break is compromised by PBT-rich blends morphology, and by PEI-rich blends densification. The 50/50 blend exhibits the best elongational at break result due to its co-continuous morphology. Thermal stability and flammability tests reveal that PEI improves the thermal resistance and charring of PBT, particularly for 50/50 blend. © 2018 Elsevier Ltdeng
dc.identifierhttps://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=8274
dc.identifier.doi10.1016/j.polymer.2018.09.012
dc.identifier.issn323861
dc.identifier.issn18732291
dc.identifier.otherWOS;000446071700029
dc.identifier.otherSCOPUS;2-s2.0-85054608110
dc.identifier.urihttp://hdl.handle.net/10784/28993
dc.language.isoengeng
dc.publisherElsevier Ltd
dc.relationDOI;10.1016/j.polymer.2018.09.012
dc.relationWOS;000446071700029
dc.relationSCOPUS;2-s2.0-85054608110
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85054608110&doi=10.1016%2fj.polymer.2018.09.012&partnerID=40&md5=56d85aaa05fd803ed6dc847c0a008c5f
dc.rightshttps://v2.sherpa.ac.uk/id/publication/issn/0032-3861
dc.sourcePolymer
dc.subject.keywordFlame resistanceeng
dc.subject.keywordMorphologyeng
dc.subject.keywordPolyetherimideseng
dc.subject.keywordSolubilityeng
dc.subject.keywordCo-continuous morphologyeng
dc.subject.keywordDual phaseeng
dc.subject.keywordElongation at breakeng
dc.subject.keywordFlammability propertieseng
dc.subject.keywordHigh performance polymereng
dc.subject.keywordMiscible blendeng
dc.subject.keywordMorphological evolutioneng
dc.subject.keywordPartial miscibilityeng
dc.subject.keywordPolymer blendseng
dc.titleTailoring the mechanical, thermal, and flammability properties of high-performance PEI/PBT blends exhibiting dual-phase continuityeng
dc.typeinfo:eu-repo/semantics/articleeng
dc.typearticleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.typepublishedVersioneng
dc.type.localArtículospa

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