TY  - JOUR
AU  - Kljajević, Ljiljana M.
AU  - Melichova, Zuzana
AU  - Kisić, Danilo
AU  - Nenadović, Miloš
AU  - Todorović, Bratislav Ž.
AU  - Pavlović, Vladimir B.
AU  - Nenadović, Snežana S.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8440
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. © 2018 Authors.
T2  - Science of Sintering
T1  - The influence of alumino-silicate matrix composition on surface hydrophobic properties
VL  - 51
IS  - 2
SP  - 163
EP  - 173
DO  - 10.2298/SOS1902163K
ER  - 

@article{
author = "Kljajević, Ljiljana M. and Melichova, Zuzana and Kisić, Danilo and Nenadović, Miloš 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. © 2018 Authors.",
journal = "Science of Sintering",
title = "The influence of alumino-silicate matrix composition on surface hydrophobic properties",
volume = "51",
number = "2",
pages = "163-173",
doi = "10.2298/SOS1902163K"
}

Kljajević, L. M., Melichova, Z., Kisić, D., Nenadović, M., 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, 51(2), 163-173.
https://doi.org/10.2298/SOS1902163K

Kljajević LM, Melichova Z, Kisić D, Nenadović M, 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 .

Kljajević, Ljiljana M., Melichova, Zuzana, Kisić, Danilo, Nenadović, Miloš, 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 . .