The influence of alumino-silicate matrix composition on surface hydrophobic properties
2019
Authors
Kljajević, Ljiljana M.Melichova, Z.
Kisić, D.D.
Nenadović, Miloš
Todorović, B.Ž.
Pavlović, Vladimir
Nenadović, Snežana S.
Article (Published version)
Metadata
Show full item recordAbstract
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.
Keywords:
Contact angle / Geopolymer / Metabentonit / Metadiatomite / MetakaolinSource:
Science of Sintering, 2019, 51, 2, 1-10Publisher:
- Međunarodni Institut za nauku o sinterovanju, Beograd
Funding / projects:
- Ministry of Education, Science and Technological Development of Republic of Serbia [III 45012 and III 45005]; In Slovakia grant from the Slovak Grant Agency VEGA No. 1/0538/15 and the project "Restoration and construction of infrastructure for ecological
DOI: 10.2298/sos1902163k
ISSN: 0350-820X
WoS: 000496249200004
Scopus: 2-s2.0-85070248132
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Institution/Community
Poljoprivredni fakultetTY - JOUR AU - Kljajević, Ljiljana M. AU - Melichova, Z. AU - Kisić, D.D. AU - Nenadović, Miloš AU - Todorović, B.Ž. AU - Pavlović, Vladimir AU - Nenadović, Snežana S. PY - 2019 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/5132 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 - Međunarodni Institut za nauku o sinterovanju, Beograd T2 - Science of Sintering T1 - The influence of alumino-silicate matrix composition on surface hydrophobic properties EP - 10 IS - 2 SP - 1 VL - 51 DO - 10.2298/sos1902163k ER -
@article{ author = "Kljajević, Ljiljana M. and Melichova, Z. and Kisić, D.D. and Nenadović, Miloš and Todorović, B.Ž. and Pavlović, Vladimir 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 = "Međunarodni Institut za nauku o sinterovanju, Beograd", journal = "Science of Sintering", title = "The influence of alumino-silicate matrix composition on surface hydrophobic properties", pages = "10-1", number = "2", volume = "51", doi = "10.2298/sos1902163k" }
Kljajević, L. M., Melichova, Z., Kisić, D.D., Nenadović, M., Todorović, B.Ž., Pavlović, V.,& Nenadović, S. S.. (2019). The influence of alumino-silicate matrix composition on surface hydrophobic properties. in Science of Sintering Međunarodni Institut za nauku o sinterovanju, Beograd., 51(2), 1-10. https://doi.org/10.2298/sos1902163k
Kljajević LM, Melichova Z, Kisić D, Nenadović M, Todorović B, Pavlović V, Nenadović SS. The influence of alumino-silicate matrix composition on surface hydrophobic properties. in Science of Sintering. 2019;51(2):1-10. doi:10.2298/sos1902163k .
Kljajević, Ljiljana M., Melichova, Z., Kisić, D.D., Nenadović, Miloš, Todorović, B.Ž., Pavlović, Vladimir, Nenadović, Snežana S., "The influence of alumino-silicate matrix composition on surface hydrophobic properties" in Science of Sintering, 51, no. 2 (2019):1-10, https://doi.org/10.2298/sos1902163k . .