The influence of alumino-silicate matrix composition on surface hydrophobic properties
Autori
Kljajević, Ljiljana M.Melichova, Zuzana
Kisić, Danilo D.
Nenadović, Miloš T.
Todorović, Bratislav Ž
Pavlović, Vladimir B.
Nenadović, Snežana S.
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
The 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 geopolyme...r samples, GPMB and GPMK.
Izvor:
Science of Sintering, 2019, 51, 2, 163-173Izdavač:
- Belgrade : ETRAN
Finansiranje / projekti:
- Sinteza, procesiranje i karakterizacija nanostrukturnih materijala za primenu u oblasti energije, mehaničkog inženjerstva, zaštite životne stredine i biomedicine (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45012)
- Funkcionalni, funkcionalizovani i usavršeni nano materijali (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45005)
- Slovak Grant Agency VEGA No. 1/0538/15
- Restoration and construction of infrastructure for ecological and environmental research at Matej Bel University in Banská Bystrica, ITMS 262101200245
DOI: 10.2298/SOS1902163K
ISSN: 1820-7413
WoS: 000496249200004
Scopus: 2-s2.0-85070248132
Institucija/grupa
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Kljajević, Ljiljana M. AU - Melichova, Zuzana AU - Kisić, Danilo D. AU - Nenadović, Miloš T. AU - Todorović, Bratislav Ž AU - Pavlović, Vladimir B. AU - Nenadović, Snežana S. PY - 2019 UR - https://dais.sanu.ac.rs/123456789/6466 AB - The 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. PB - Belgrade : ETRAN T2 - Science of Sintering T1 - The influence of alumino-silicate matrix composition on surface hydrophobic properties SP - 163 EP - 173 VL - 51 IS - 2 DO - 10.2298/SOS1902163K UR - https://hdl.handle.net/21.15107/rcub_dais_6466 ER -
@article{ author = "Kljajević, Ljiljana M. and Melichova, Zuzana and Kisić, Danilo D. and Nenadović, Miloš T. and Todorović, Bratislav Ž and Pavlović, Vladimir B. and Nenadović, Snežana S.", year = "2019", abstract = "The 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.", publisher = "Belgrade : ETRAN", journal = "Science of Sintering", title = "The influence of alumino-silicate matrix composition on surface hydrophobic properties", pages = "163-173", volume = "51", number = "2", doi = "10.2298/SOS1902163K", url = "https://hdl.handle.net/21.15107/rcub_dais_6466" }
Kljajević, L. M., Melichova, Z., Kisić, D. D., Nenadović, M. T., Todorović, B. Ž., Pavlović, V. B.,& Nenadović, S. S.. (2019). The influence of alumino-silicate matrix composition on surface hydrophobic properties. in Science of Sintering Belgrade : ETRAN., 51(2), 163-173. https://doi.org/10.2298/SOS1902163K https://hdl.handle.net/21.15107/rcub_dais_6466
Kljajević LM, Melichova Z, Kisić DD, Nenadović MT, Todorović BŽ, Pavlović VB, Nenadović SS. The influence of alumino-silicate matrix composition on surface hydrophobic properties. in Science of Sintering. 2019;51(2):163-173. doi:10.2298/SOS1902163K https://hdl.handle.net/21.15107/rcub_dais_6466 .
Kljajević, Ljiljana M., Melichova, Zuzana, Kisić, Danilo D., Nenadović, Miloš T., Todorović, Bratislav Ž, Pavlović, Vladimir B., Nenadović, Snežana S., "The influence of alumino-silicate matrix composition on surface hydrophobic properties" in Science of Sintering, 51, no. 2 (2019):163-173, https://doi.org/10.2298/SOS1902163K ., https://hdl.handle.net/21.15107/rcub_dais_6466 .