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dc.contributor.authorKerche, Eduardo Fischerpt_BR
dc.contributor.authorCruz, Joziel Aparecido dapt_BR
dc.contributor.authorAmico, Sandro Campospt_BR
dc.date.accessioned2023-02-07T05:02:40Zpt_BR
dc.date.issued2022pt_BR
dc.identifier.issn1929-5995pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/254305pt_BR
dc.description.abstractIn this work,rigid polyurethane foams(RPUF)reinforced bymicrofibrillated cellulose (MFC) were manufactured usingthe freerising method and also under confinement inside a closed mould, aiming to increase apparent densityand improvemechanical response. Neat RPUF were also manufactured for comparison.The mechanical response, evaluated by compression (following ASTMD1621 standard) tests were correlated with the final composite apparent density (evaluated following ASTM D1622standard). Simple linear regression statistical models, based onF-test, were developed using stat graphics software, aiming to understand and correlatethe increment in densityand its influence on the improvement in mechanical response. Different models were developed to describe the foam behavior. The mainresults showa more significant influence of the density onstrength thanstiffnessfor the neat RPUF, unlike the MFC-reinforced RPUF, which presented an oppositeresponse. These effects couldbe caused by the lowercontent of voids whenthe foams were produced under confinement, and bythe greater crosslinkdensity, when MFC was added.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofJournal of research updates in polymer science [recurso eletrônico]. [Ontario]. Vol. 11 (2022), p. 31-35pt_BR
dc.rightsOpen Accessen
dc.subjectRigid polyurethane foamsen
dc.subjectEspuma de poliuretanopt_BR
dc.subjectCelulosept_BR
dc.subjectHigh-density foamsen
dc.subjectMicro fibrillated celluloseen
dc.subjectCellular compositesen
dc.titleThe influence of density on the mechanical response of reinforced high-density polyurethane foams : a statistical approachpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001158106pt_BR
dc.type.originEstrangeiropt_BR


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