Relation between chemical composition of sols and surface free energy of inorganic-organic films

Čierniková, Marianna; Balážová, Petra; Plško, Alfonz; Exnar, Petr; Pagáčová, Jana; Papučová, Iveta

doi:10.1007/s10971-018-4856-y

Cited by 3 publications

(3 citation statements)

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“…By "dip-coating" technique, the inorganic-organic films were prepared with coating speed of 60 mm•min -1 on the microscope slide glasses which were cleaned using procedure in [28]. After sol deposition, 2 hours treatment was performed at temperatures of 140, 160, 180, 200 and 220 °C for individual films, with following free cooling to room temperature.…”

Section: Preparation Of Inorganic-organic Filmsmentioning

confidence: 99%

“…Many papers, which studied the relationship between composition of sols and properties of inorganic-organic films, have been published [1,24,[27][28][29][30]. In paper [28], the relation of surface free energy to composition of sols in "tetraethoxysilane (TEOS) -triethoxy(octyl)silane (OTES) -water -nitric acid -isopropyl alcohol" system was studied. The films were prepared on glass and they were treated at temperature of 140 °C for 2 hours.…”

Section: Introductionmentioning

confidence: 99%

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The Influence of Treatment Temperature on Surface Properties of Inorganic-Organic Films

Papučová¹

2021

Ceramics - Silikaty

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The paper deals with the treatment temperature influence of inorganic-organic films on their surface properties. Inorganic-organic films were prepared by sol-gel method in "tetraethoxysilane -triethoxy(octyl)silane -water -nitric acid -isopropyl alcohol" system, and they were treated at temperatures of 140, 160, 180, 200 and 220 °C. The atomic force microscopy and sessile drop technique were used for characterization of film surface. The morphology, rms-roughness, and surface wettability (hydrophobicity) were evaluated. Surface free energy and its polar and dispersion component were calculated by Owens-Wendt-Rabel-Kaelble (OWRK) method, using contact angles of water and diiodomethane. On the basis of results of all studied properties, the films can be divided into two groups. The first group is represented by films prepared at temperatures of 140, 160 and 180 °C because there is the evaporation of present solvents. The second group is represented by films prepared at temperatures of 200 and 220 °C because the degradation processes of inorganic-organic components are in progress in films.

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Section: Preparation Of Inorganic-organic Filmsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Influence of Treatment Temperature on Surface Properties of Inorganic-Organic Films

Papučová¹

2021

Ceramics - Silikaty

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“…Silica-based inorganic-organic protection films can be deposited on different materials, such as metal substrates [3,4,14,[23][24][25][26], polycarbonate substrates [27] and glass [28][29][30][31] having the function of anticorrosion, anti-fogging, superhydrophobic, selfcleaning, water-repellent, antistatic, scratch resistant and as antimicrobial coatings [32]. However, there are only a few studies dealing with inorganic-organic films deposited on glass from the aspect of the interaction between the surface of the films and the surrounding environment [33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Changes in the Surface Properties of Inorganic-Organic Films Caused by Water Attack

Pagáčová¹

2022

Ceramics - Silikaty

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The paper deals with studying the changes in the surface properties of inorganic-organic films after their interaction with water. The inorganic-organic films were deposited from sols, which were prepared at room temperature as well as the boiling temperature of isopropyl alcohol by three different ways of mixing the initial precursors -tetraethoxysilane (TEOS), triethoxy(octyl)silane (OTES), isopropyl alcohol, distilled water and nitric acid. The films, which were prepared by the dipcoating technique and treated at 170 °C, were exposed to a water attack at 80 °C for 5 hours. To characterise the films, after their interaction with water, changes in the morphology, rms-roughness and hydrophobicity were used. The studied properties were investigated, using the atomic force microscopy and sessile drop technique. All the films were hydrophobic, and their hydrophobicity was without any change or it was only slightly increased after the water attack. On the basis of the results, it can be stated that the way that the sol is prepared as well as the water attack have the smallest effect on the changes in the surface morphology of a film deposited from a sol where OTES was added to TEOS at the beginning of the sol preparation and they were hydrolysed simultaneously at room temperature. The rms-roughness and water contact angle for this film were only slightly increased after the water attack.

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The influence of corrosion of inorganic-organic films on their surface properties

Papučová

Pagáčová

Plško

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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The work deals with the influence of water corrosion on the surface properties of inorganic-organic SiO2 films, which were prepared from the sols in “tetraethoxysilane-isopropyl alcohol-water-nitric acid-triethoxy(octyl)silane” system. The atomic force microscopy and sessile drop technique was used on the characterization of surface properties. The morphology, rms-roughness, adhesion force and stiffness of prepared films were evaluated. Surface free energy and its polar and dispersion component were calculated by Owens-Wendt method using contact angles of distilled water and diiodomethane. The influence of corrosion on all of the studied properties of films was significant in the case of films prepared from sol with molar ratio of x(H2O) : x(SiO2) = 2.

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Relation between chemical composition of sols and surface free energy of inorganic-organic films

Cited by 3 publications

References 68 publications

The Influence of Treatment Temperature on Surface Properties of Inorganic-Organic Films

The Influence of Treatment Temperature on Surface Properties of Inorganic-Organic Films

Changes in the Surface Properties of Inorganic-Organic Films Caused by Water Attack

The influence of corrosion of inorganic-organic films on their surface properties

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