The influence of alumino-silicate matrix composition on surface hydrophobic properties

Kljajević, Ljiljana M.; Melichova, Zuzana; Kisić, Danilo D.; Nenadović, Miloš T.; Todorović, Bratislav Ž; Pavlović, Vladimir B.; Nenadović, Snežana S.

doi:10.2298/SOS1902163K

2019

Kljajevic_Science-of-Sintering_2019_51_163-173.pdf (573.7Kb)

Authors

Kljajević, Ljiljana M.

Melichova, Zuzana
Kisić, Danilo D.
Nenadović, Miloš T.
Todorović, Bratislav Ž
Pavlović, Vladimir B.

Nenadović, Snežana S.

Article (Published version)

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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 geopolyme...

Source:
Science of Sintering, 2019, 51, 2, 163-173

Publisher:

Belgrade : ETRAN

Projects:

Synthesis, processing and characterization of nanostructured materials for application in the field of energy, mechanical engineering, environmental protection and biomedicine (RS-45012)
Functional, Functionalized and Advanced Nanomaterials (RS-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

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TY - 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 - http://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
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",
url = "http://dais.sanu.ac.rs/123456789/6466",
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"
}

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. Science of Sintering. 2019;51(2):163-173

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.
Science of SinteringBelgrade : ETRAN., 51(2), 163-173. 
https://doi.org/10.2298/SOS1902163K

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" 51, no. 2 (2019):163-173,
https://doi.org/10.2298/SOS1902163K .