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dc.contributor.authorPascual Portal, Blanca Sol 
dc.contributor.authorTrigo López, Miriam 
dc.contributor.authorRamos Rodríguez, Cipriano 
dc.contributor.authorSanz Díez, Mª Teresa 
dc.contributor.authorPablos, Jesús Luis
dc.contributor.authorGarcía García, Félix Clemente 
dc.contributor.authorReglero Ruiz, José Antonio 
dc.contributor.authorGarcía Pérez, José Miguel 
dc.date.accessioned2018-11-28T09:18:14Z
dc.date.issued2019-01
dc.identifier.issn0014-3057
dc.identifier.urihttp://hdl.handle.net/10259/5025
dc.description.abstractWe have deeply diminished the density of high performance aromatic polyamides or aramids. Thus, we have prepared microcellular films that at the same time maintain the outstanding thermal and mechanical properties characteristic of these high performance materials. Two different cellular aramids were produced, based on commercial poly(m-phenylene isophthalamide), one of them with an additional azide group. Microcellular structures have been obtained by adding ionic liquids combined to ScCO2 foaming process, with cell sizes between 0.6 and 4.7 µm and cell densities between 109 and 1011 cells cm3. The density was lowered for the commercial poly(m-phenylene isophthalamide) (Nomex® and Teijin Conex®) from 1.43 to 0.62 g cm−3 and from 1.48 to 0.31 g cm3 for the aramid containing the azide group. Foams present the following thermal and mechanical properties: 5% weight loss observed at T > 400 °C and relative Young modulus and tensile strength of 1.2 GPa (g cm−3)−1 and 60 MPa (g cm−3)−1, respectively.en
dc.description.sponsorshipFEDER (Fondo Europeo de Desarrollo Regional) and the Spanish Agencia Estatal de Investigación (MAT2017-84501-R)en
dc.format.mimetypeapplication/pdf
dc.language.isoenges
dc.publisherElsevieren
dc.relation.ispartofEuropean Polymer Journal. 2019, V. 110, p. 9-13en
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectAramidsen
dc.subjectMicrocellularen
dc.subjectIonic liquidsen
dc.subjectScCO2 foamingen
dc.subjectPolyamideen
dc.subject.otherQuímica orgánicaes
dc.subject.otherChemistry, Organicen
dc.subject.otherIngeniería químicaes
dc.subject.otherChemical engineeringen
dc.titleMicrocellular foamed aromatic polyamides (aramids). Structure, thermal and mechanical propertiesen
dc.typeinfo:eu-repo/semantics/article
dc.date.embargo2021-02
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.relation.publisherversionhttps://doi.org/10.1016/j.eurpolymj.2018.11.007
dc.identifier.doi10.1016/j.eurpolymj.2018.11.007
dc.relation.projectIDinfo:eu-repo/grantAgreement/MICINN/MAT2017-84501-R
dc.type.hasVersioninfo:eu-repo/semantics/acceptedVersionen


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