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The effect of microcellular structure on the dynamic mechanical thermal properties of high-performance nanocomposite foams made of graphene nanoplatelets-filled polysulfone
dc.contributor.author | Antunes, Marcelo de Sousa Pais |
dc.contributor.author | Abbasi, Hooman |
dc.contributor.author | Velasco Perero, José Ignacio |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Ciència i Enginyeria de Materials |
dc.contributor.other | Universitat Politècnica de Catalunya. Doctorat en Ciència i Enginyeria dels Materials |
dc.date.accessioned | 2021-02-12T07:48:34Z |
dc.date.available | 2021-02-12T07:48:34Z |
dc.date.issued | 2021-01-29 |
dc.identifier.citation | De Sousa Pais, M.; Abbasi, H.; Velasco J.I. The effect of microcellular structure on the dynamic mechanical thermal properties of high-performance nanocomposite foams made of graphene nanoplatelets-filled polysulfone. "Polymers", 29 Gener 2021, vol. 13, núm. 3, p. 437:1-437:16. |
dc.identifier.issn | 2073-4360 |
dc.identifier.uri | http://hdl.handle.net/2117/339456 |
dc.description.abstract | Polysulfone nanocomposite foams containing variable amounts of graphene nanoplatelets (0–10 wt%) were prepared by water vapor-induced phase separation (WVIPS) and supercritical CO2 (scCO2) dissolution. WVIPS foams with two ranges of relative densities were considered, namely, between 0.23 and 0.41 and between 0.34 and 0.46. Foams prepared by scCO2 dissolution (0.0–2.0 wt% GnP) were obtained with a relative density range between 0.35 and 0.45. Although the addition of GnP affected the cellular structure of all foams, they had a bigger influence in WVIPS foams. The storage modulus increased for all foams with increasing relative density and GnP’s concentration, except for WVIPS PSU-GnP foams, as they developed open/interconnected cellular structures during foaming. Comparatively, foams prepared by scCO2 dissolution showed higher specific storage moduli than similar WVIPS foams (same relative density and GnP content), explained by the microcellular structure of scCO2 foams. As a result of the plasticizing effect of CO2, PSU foams prepared by scCO2 showed lower glass transition temperatures than WVIPS foams, with the two series of these foams displaying decreasing values with incrementing the amount of GnP |
dc.language.iso | eng |
dc.publisher | Multidisciplinary Digital Publishing Institute (MDPI) |
dc.rights | Attribution 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Enginyeria dels materials |
dc.subject.lcsh | Graphene |
dc.subject.lcsh | Foamed materials |
dc.subject.lcsh | Foam |
dc.subject.lcsh | Thermoplastics |
dc.subject.lcsh | Nanocomposites (Materials) |
dc.subject.other | Foams |
dc.subject.other | Polysulfone |
dc.subject.other | Graphene nanoplatelets |
dc.subject.other | Viscoelastic behavior |
dc.subject.other | Multifunctional |
dc.title | The effect of microcellular structure on the dynamic mechanical thermal properties of high-performance nanocomposite foams made of graphene nanoplatelets-filled polysulfone |
dc.type | Article |
dc.subject.lemac | Grafè |
dc.subject.lemac | Materials escumosos |
dc.subject.lemac | Escuma (Química) |
dc.subject.lemac | Termoplàstics |
dc.subject.lemac | Nanocompòsits (Materials) |
dc.contributor.group | Universitat Politècnica de Catalunya. POLY2 - Polyfunctional polymeric materials |
dc.identifier.doi | 10.3390/polym13030437 |
dc.relation.publisherversion | https://www.mdpi.com/2073-4360/13/3/437 |
dc.rights.access | Open Access |
local.identifier.drac | 30434948 |
dc.description.version | Postprint (published version) |
dc.relation.projectid | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2017-89787-P/ES/ESPUMAS POLIMERICAS MULTIFUNCIONALES BASADAS EN TERMOPLASTICOS DE ALTA TEMPERATURA/ |
local.citation.author | De Sousa Pais, M.; Abbasi, H.; Velasco J.I. |
local.citation.publicationName | Polymers |
local.citation.volume | 13 |
local.citation.number | 3 |
local.citation.startingPage | 437:1 |
local.citation.endingPage | 437:16 |
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