Abstract:
Microstructural tailoringofkaolinfoamswassuccessfullyperformedfromkaolinclaymineralbysurfactantassistedfoamingtechniqueusing
the anionicsurfactantsodiumdodecylsulfate(SDS).ThefoamswerepreparedviafrothingofaqueouskaolinsuspensionwithSDSsolutionsof
different concentrationandthestabilityofthefoamwasimprovedbyinsitupolymerizationofmethylol-ureatoureaformaldehyderesin.
Furthermore, theeffectofsurfactantconcentrationonslurryfoamingcharacteristicsandthecorrespondingchangeintheporemorphologyofthe
dried foamswereinvestigated.Theresultshowedthattheporesize,porevolumeandinterconnectivitychangedwiththeincreasedamountof
SDS. Inaddition,theroleofSDSmicellarstabilityonthefrothingcapacityandtheanalogousmodification inthemicrostructureof final sintered
foam wereexplainedbyapossiblemechanismbasedonthevariationofmicellarstabilitywithconcentration.
& 2015 ElsevierLtdandTechnaGroupS.r.l.Allrightsreserved.
