Formation of Coatings Based on Titanium Dioxide Nanosolson Polyester Fibre Materials

Abstract

In this paper, we show that functionalization of fibrous materials through coating formation is hindered by the need to preserve the capillary-porous system of the fabric and its drapability. Additionally, such coatings must be resistant to abrasion and washing. We consider ways of solving these problems by analysing the formation of a stable coating based on photoactive titanium dioxide on a polyester fibre material as an example. The purpose of such coatings is to destroy coloured organic contaminants when the fabric is exposed to sunlight. We show that a polyester fabric with a titanium dioxide coating can become highly photochemically active and capable of inhibiting the vital activity of gram-negative bacteria and remaining soft and breathable at the same time. We also determined that depositing a titanium dioxide coating does not reduce the polyester fabric tensile strength. Polyester fabrics with photoactive properties can be widely used as decorative and trimming materials—for housing decoration, production of curtains and other decorative interior design elements.

Bacteria Adhesion of Textiles Influenced by Wettability and Pore Characteristics of Fibrous Substrates

“…On the contrary, fiber webs with random surface roughness and extreme porosity showed much higher bacteria adhesion ( Figure 3 b and Figure 4 c) [ 31 , 32 , 34 ]. Similar to the preceding, Bajpai et al [ 14 ] demonstrated that fabrics with a rough surface, such as cotton, had a great bacterial adherence. Puddles and random-sized pores that are accessible from the web surface would allow strong attachment of bacteria.…”

“…For example, as a preventative measure to bacterial growth on textiles, various antimicrobial treatments such as quaternary ammonium compounds, triclosan, and chitosan have been incorporated into fibers [ 9 ]; however, those materials often fail to kill every organism effectively. Biocidal nanoparticles including silver [ 10 , 11 , 12 ], copper [ 12 , 13 ], titanium dioxide [ 14 , 15 , 16 ], and zinc oxide [ 17 , 18 , 19 ] are also used, where silver is particularly effective at interfering with bacterial metabolism. However, the adverse effect of those reactive species on human cells is still obscure, and the environmental and toxicological [ 20 , 21 , 22 ] concerns about using nanoparticles still remain.…”

Enhanced photodegradation of TiO2‐containing poly(ε‐caprolactone)/poly(lactic acid) blends

“…37 Prorokova et al have investigated the use of TiO 2 particulate coatings to create self-cleaning fibers. 38,39 As TiO 2 nanoparticles absorb light in the presence of water vapor, they form reactive oxygen species (ROS) which degrade any unwanted compounds forming within a material or on its surface through a radical mechanism. In plastics, ROS scavengers often prevent further degradation of the polymeric matrix.…”

“…Titanium dioxide (TiO 2 ) is a common whitening agent in foods (e.g., Twinkies) and widespread additive in both food packaging (due to its biocidal properties) 34,35 and commodity plastics, where TiO 2 nanoparticles prevent excessive bleaching and/or yellowing of plastics such as poly(ethylene) 36 and poly(vinyl chloride) 37 . Prorokova et al have investigated the use of TiO 2 particulate coatings to create self‐cleaning fibers 38,39 . As TiO 2 nanoparticles absorb light in the presence of water vapor, they form reactive oxygen species (ROS) which degrade any unwanted compounds forming within a material or on its surface through a radical mechanism.…”

Preparation and characterization of CTAB surfactant modified TiO2 nanoparticles as antibacterial fabric coating material

“…The photocatalytic properties of TiO 2 can be used when TiO 2 is irradiated with light, and the bandgap will produce electron and hole pairs which cause a redox reaction on the surface of TiO 2 . As a result, electrons will move from the valence band to the conduction band so that electron and hole pairs will form on the photocatalyst surface [6], coats the polyester fabric TiO 2 , which has high sedimentation stability. As a result, a very thin layer is formed on the surface of each polyester fabric fibre.…”