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dc.creatorKljajević, Ljiljana M.
dc.creatorMelichova, Zuzana
dc.creatorKisić, Danilo D.
dc.creatorNenadović, Miloš T.
dc.creatorTodorović, Bratislav Ž
dc.creatorPavlović, Vladimir B.
dc.creatorNenadović, Snežana S.
dc.date.accessioned2019-10-11T10:55:32Z
dc.date.available2019-10-11T10:55:32Z
dc.date.issued2019
dc.identifier.issn1820-7413
dc.identifier.urihttp://dais.sanu.ac.rs/123456789/6466
dc.description.abstractThe purpose of this investigation is to investigate the hydrophobicity of geopolymers, new alumino-silicate materials and the influence of Si/Al ratio on their surface properties. Contact angle measurement (CAM) as reliable indicator of hydrophobicity was determined for synthesized geopolymers using water and ethylene-glycol as reference liquids. Geopolymers were synthesized from various precursors: kaolin, bentonite and diatomite. Characterization of phase structure and microstructure was performed by XRD, FTIR, SEM/EDX methods. Contact angle measurements confirmed that the geopolymers synthesized from metakaolin are the most porous, which can be explained by the smallest Si/Al ratio. The maximum value of contact angle and free surface energy (110.2 mJ/m2) has been achieved for geopolymer synthesized by diatoms (GPMD). SEM micrograph of GPMD shows a homogeneous surface with some longitudinal cavities in the gel and is significantly different from the micrographs of other two geopolymer samples, GPMB and GPMK.
dc.languageen
dc.publisherBelgrade : ETRAN
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45012/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45005/RS//
dc.relationlovak Grant Agency VEGA No. 1/0538/15
dc.relationRestoration and construction of infrastructure for ecological and environmental research at Matej Bel University in Banská Bystrica, ITMS 262101200245
dc.rightsopenAccess
dc.sourceScience of Sintering
dc.titleThe influence of alumino-silicate matrix composition on surface hydrophobic properties
dc.typearticleen
dc.rights.licenseBY
dc.citation.spage163
dc.citation.epage173
dc.citation.volume51
dc.citation.issue2
dc.identifier.doi10.2298/SOS1902163K
dc.type.versionpublishedVersion
dc.identifier.fulltexthttp://dais.sanu.ac.rs/bitstream/id/26099/Kljajevic_Science-of-Sintering_2019_51_163-173.pdf


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