Fabrication of Superhydrophilic Polyester Fabrics Using Various TiO2 Colloidal Dispersions
A. Ojstršek, M. Kurečič, D. Fakin
University of Maribor, Faculty of Mechanical Engineering, Institute for Engineering Materials and Design, Smetanova 17, 2000 Maribor, Slovenia
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The purpose of this research was to apply four stable colloidal dispersions, combining different TiO2 core-shell nanoparticles, onto polyester fabric, according to exhaustion procedure, in order to enhance fabrics' water and moisture absorption properties. Firstly, all colloidal dispersions were analysed using transmission electron microscopy (TEM) and dynamic light scattering (DLS) and secondly, the morphologies of TiO2 modified PES surfaces were evaluated by scanning electron microscopy (SEM). In addition, the superhydrophilic character of fibrous surfaces was investigated by water contact angle measurement. For this purpose, dynamic tensiometry was employed by measuring the changes in the net force on a surface during the repeated immersion and emersion of a solid into a probe liquid. The obtained results show excellent wettability of TiO2 upgraded PES fabrics depending on the type of applied nano-sized TiO2-hybride.

DOI: 10.12693/APhysPolA.127.953
PACS numbers: 81.05.Lg, 81.70.Fy, 82.70.Dd