Nano TiO₂/amino-benzotriazole functionalization of cotton knitted fabrics for ultraviolet protection and antibacteria by pad-dry method

Abstract

In this work, multifunctional knitted fabrics with ultraviolet resistance and antibacterial properties are presented. The functional coating was fabricated on cotton fabric through a facile one step pad-dry process after being dipped in benzotriazole derivative and titanium dioxide mixture solution. Alkali catalyzed polymerization was applied to synthesis amino-benzotriazole, which could form covalent bonds with cellulose after fixation on cotton fiber. The coating was compacted and agglutinated to the cotton fibers, which were observed by scanning electron microscopy, the wash fastness also revealed the bonding capacity. The ultraviolet protection factor was calculated by the transmittance value, the results illustrated tremendous improvement in the ultraviolet protection factor of the functionalized knitted fabrics, since the energy absorption and surface nanoparticles scatters of incident ultraviolet radiation. Moreover, the attenuation rate of ultraviolet resistance is low. The bursting strength, pilling resistance, air permeability and moisture resistance of the functionalized knitted fabrics demonstrated their good wearing comfort properties. In addition, the as-constructed fabrics also showed a strong ability to resist Escherichia coli and Staphylococcus aureus.

Comparison of Zinc Oxide Nanoparticle Integration into Non-Woven Fabrics Using Different Functionalisation Methods for Prospective Application as Active Facemasks

“…Moreover, in comparison with the exhaustion method, the air permeability of the facemask comprising dip-pad-dry was substantially lower (## p < 0.01). This was expected, in what concerns change induced by the electrospinning [5,7], dip-pad-dry [75,76] and exhaustion [77] functionalisation methods. Consequently, more opportunities are created for harmful particle collision with the fibrous structures following their contact with the multilayer [5].…”

Preparation of Antibacterial and UV-Protective Cotton through Coating with TiO2-Modified Chitosan-Based Schiff Bases

“…This work was compared with the existing research on TiO 2 -based antibacterial and antiultraviolet cotton fabrics, and the information on each research is shown in Table . Shao et al functionalized cotton fabrics with nano TiO 2 /amino-benzotriazole, resulting in a UV protection coefficient of 146.2 and bacterial inhibition rates of 86.40% against E. coli and 83.34% against S.…”

“…This work was compared with the existing research on TiO 2based antibacterial and antiultraviolet cotton fabrics, and the information on each research is shown in Table 2. Shao et al 36 functionalized cotton fabrics with nano TiO 2 /amino-benzotriazole, resulting in a UV protection coefficient of 146.2 and bacterial inhibition rates of 86.40% against E. coli and 83.34% against S. aureus. Li et al 5 deposited varying concentrations of TiO 2 nanoparticles on cotton fabrics and subsequently grew Ag nanoparticles on TiO 2 through a chemical reduction method.…”