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Graphene oxide-containing isocyanate-based polyimide foams: Enhanced thermal stability and flame retardancy

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dc.contributor.authorÇAKIR, MUSTAFA
dc.contributor.authorsCakir, Mustafa; Kilic, Volkan; Boztoprak, Yalcin; Ozmen, Fadime Karaer
dc.date.accessioned2022-03-12T22:56:02Z
dc.date.available2022-03-12T22:56:02Z
dc.date.issued2021
dc.description.abstractIsocyanate-based graphene oxide-containing polyimide foams were synthesized by a semi-prepolymer method. In this method, while the first solution containing pre-polymer was derived from pyromellitic dianhydride and excess polymethylene polyphenylene isocyanate (PM200), the second solution contains dianhydride derivatives, water, catalysts, surfactants, and graphene oxide. PIFs were prepared with 0%, 0.25%, 0.50%, 0.75%, and 1% graphene oxide by weight, respectively. PIFs exhibited a minimum side reaction and urea generation was not seen for all PIFs instead of imide bonding. The addition of graphene oxide (GO) leads to a more close-packed structure. Therefore, crosslinking density and thermal stability of graphene oxide-containing polyimide foams increased. Upon the addition of 1% GO, almost seven times higher compression strength was obtained compared to neat PIFs. Also, LOI values supported the theory that thermally stable and flame retardant PIFs can be synthesized via the isocyanate-based process with GO.
dc.identifier.doi10.1002/app.51012
dc.identifier.eissn1097-4628
dc.identifier.issn0021-8995
dc.identifier.urihttps://hdl.handle.net/11424/236879
dc.identifier.wosWOS:000656467600001
dc.language.isoeng
dc.publisherWILEY
dc.relation.ispartofJOURNAL OF APPLIED POLYMER SCIENCE
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectfoams
dc.subjectgraphene
dc.subjectgraphene oxide
dc.subjectmechanical properties
dc.subjectnanomaterials
dc.subjectpolyimides
dc.subjectthermal properties
dc.subjectSHEETS
dc.subjectAGENT
dc.titleGraphene oxide-containing isocyanate-based polyimide foams: Enhanced thermal stability and flame retardancy
dc.typearticle
dspace.entity.typePublication
local.avesis.id6367bf4e-4258-42eb-8525-80eef6e21893
local.import.packageSS17
local.indexed.atWOS
local.indexed.atSCOPUS
local.journal.articlenumbere51012
local.journal.numberofpages9
oaire.citation.issue39
oaire.citation.titleJOURNAL OF APPLIED POLYMER SCIENCE
oaire.citation.volume138
relation.isAuthorOfPublication9884b23f-286c-4472-8e07-2d1ea6bc4421
relation.isAuthorOfPublication.latestForDiscovery9884b23f-286c-4472-8e07-2d1ea6bc4421

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