TY  - 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 . .