Evaluation of multifunctional properties of polyester/cotton blend treated with unmodified and modified nano-TiO₂particles

Abstract

TiO 2 nanoparticles have been synthesised using sol-gel technique by titanium tetraisopropoxide (C 12 H 28 O 4 Ti,) as a precursor. The particle has been modified using 3-aminopropyltriethoxysilane as a surface modifier. The unmodified and modified particles were characterise for size and distribution using a particle size analyser, which works on dynamic light scattering principle. The particles have been applied on polyester/cotton woven fabric for various concentrations of nanoparticles. The treated fabric has been characterised for protective properties such as antimicrobial activity (against Staphylococcus aureus, Klebsiella pneumonia and Escherichia coli) and ultraviolet protection factor (UPF) factors and for easy care properties such as soil release and self-cleaning behaviours. The functionality of the treated fabric was studied and also tested for durability for repeated wash cycles. The particle size of unmodified and modified TiO 2 have been found to be 25 and 18 nm respectively. The treated samples with modified TiO 2 have shown higher antimicrobial activity. Self-cleaning effect of the modified TiO 2 treated fabric has been found to be notably higher than the unmodified TiO 2 treated fabric. Soil release effect, which was studied subjectively, also showed improved performance for those fabrics treated with modified nano-TiO 2 . The UPF results of the unmodified and modified nano-TiO 2 fabric did not have notable differences but were almost the same. Both unmodified and modified TiO 2 treated fabrics have shown the::deceasing treated in all the functional properties studied; however, the rate of decrease was low up to the tenth wash, and then, it became notable at the fifteenth and above wash cycles. The surface light reflection characteristics, through whiteness index of the unmodified TiO 2 treated fabrics, were also found to be at increasing trend with treatment concentration.

Green biosynthesis of gold nanoparticles using Croton sparsiflorus leaves extract and evaluation of UV protection, antibacterial and anticancer applications

“…Sol–gel and pad‐dry‐cure methods have been frequently employed for the coating of metal nanoparticles to the textiles. Remarkably, a handful of literature documented the UV protection and antimicrobial properties of metal nanoparticles encumbered fabrics . Apart from this, nanoparticles are tremendously synthesized using biological entities and utilized for the evaluation of a number of pharmacological activities like anticancer, antibacterial, larvicidal, antiplasmodial, antidermatophytic activities.…”

Improvement in the light fastness of dyed meta‐aramid fabric using titanium dioxide nanoparticles

“…It is apparent from Table that the UPF values of the fabric are not affected after application of titanium dioxide nanoparticles on dyed aramid fabric. It is reported in the literature that a UPF of greater than 40 is required for a textile fabric to be labelled as a UV‐ protective fabric . In the case of both the dyes, the UPF property of the fabric is retained.…”

Sol-Gel Applications in Textile Finishing Processes

“…The maximum photocatalytic and antibacterial activities were obtained for the fabrics treated with modified TiO 2 , while the maximum UPF values were obtained for the fabric treated with unmodified TiO 2 [116].…”