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Study on adhesion properties of hydrogels to solid surfaces
Šindelářová, Anna ; Sedláček, Petr (referee) ; Smilek, Jiří (advisor)
This bachelors thesis deals with optimization and subsequent verification of the applicability of an unconventional method for determination of adhesion properties of hydrogels and materials related to them, which will then be useful for measuring the adhesion of hydrogels to solid surfaces using rheological techniques. In the case of the presented thesis, the determination of adhesion properties by means of rheometer and simple experiments such as slipping of measured materials on inclined surface is chosen. The results of both of these methods are compared to each other and also to the knowledge gained from literature. The applicability of the methods is assessed in terms of objective results, reproducibility, and whether the measured data are quantitative expressions of adhesion properties. It has been found that rheometry is useful as a reliable quantitative method of measuring adhesion. The rheometric data was reproducible and consistent. By this method, it was found that, with increasing concentration of dispersion, the adhesion force increases, which is in agreement with the knowledge obtained from literature.
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Study on adhesion properties of hydrogels to solid surfaces
Šindelářová, Anna ; Sedláček, Petr (referee) ; Smilek, Jiří (advisor)
This bachelors thesis deals with optimization and subsequent verification of the applicability of an unconventional method for determination of adhesion properties of hydrogels and materials related to them, which will then be useful for measuring the adhesion of hydrogels to solid surfaces using rheological techniques. In the case of the presented thesis, the determination of adhesion properties by means of rheometer and simple experiments such as slipping of measured materials on inclined surface is chosen. The results of both of these methods are compared to each other and also to the knowledge gained from literature. The applicability of the methods is assessed in terms of objective results, reproducibility, and whether the measured data are quantitative expressions of adhesion properties. It has been found that rheometry is useful as a reliable quantitative method of measuring adhesion. The rheometric data was reproducible and consistent. By this method, it was found that, with increasing concentration of dispersion, the adhesion force increases, which is in agreement with the knowledge obtained from literature.
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