The nano building blocks approach for modification of surface properties of nanocomposite inorganic–organic films

This work deals with utilization of nano building blocks (NBBs) approach for modification of properties of nanocomposite inorganic–organic films. Using the NBBs approach and acid-catalyzed reactions of tetraethoxysilane and triethoxy(octyl)silane, different procedures were used for preparation of si...

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Bibliographic Details
Published in:JCT research 2022, Vol.19 (4), p.1139-1147
Main Authors: Pagáčová Jana, Papučová Iveta, Alfonz, Plško, Faturíková Katarína
Format: Article
Language:English
Subjects:
Chemical reactions
Chemistry and Materials Science
Corrosion and Coatings
Dip coatings
Hydrophobicity
Immersion coating
Industrial Chemistry/Chemical Engineering
Isopropanol
Materials Science
Morphology
Nanocomposites
Photon correlation spectroscopy
Polymer Sciences
Reaction time
Sessile drop method
Surface properties
Surfaces and Interfaces
Tetraethyl orthosilicate
Thin Films
Tribology
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Summary:This work deals with utilization of nano building blocks (NBBs) approach for modification of properties of nanocomposite inorganic–organic films. Using the NBBs approach and acid-catalyzed reactions of tetraethoxysilane and triethoxy(octyl)silane, different procedures were used for preparation of six sols. Besides three different ways of mixing of initial precursors, two temperatures with different reaction time were used. The films were prepared by dip-coating technique and treated at temperature of 170°C. The sols were characterized by method of dynamic light scattering. The surface of films was characterized by atomic force microscopy and sessile drop technique. The influence of sol preparation procedure and reaction conditions on particles size in sols as well as the properties of films surface, such as hydrophobicity, morphology and rms -roughness, was observed. The procedure of sol preparation markedly influences the surface morphology of prepared nanocomposite inorganic–organic films. The changes in the studied properties were mainly observed for films, which were deposited from sols prepared at boiling temperature of isopropyl alcohol. Graphical abstract
ISSN:1547-0091
1935-3804
2168-8028
DOI:10.1007/s11998-021-00592-9