ZnTiO3 Nanoparticles as Novel Multifunctional Finishing of Cotton Fabric

Abstract

ULTIFUNCTIONAL textiles, a topic which is important from scientific and economic point of view will be the new direction for development of fabrics and clothing. Finishing of textiles with nanoparticles is a novel rout for creation of unique functions.It is well known that ZnO and TiO 2 possess UV-protection, antibacterial and photocatalytic properties, but there is no enough information concerning the similar behavior of ZnTiO 3 . This provokes the interest to synthesize that compound and to examine its UVprotection and antibacterial properties in addition to its photocatalytic activity. In this study the synthesis and use of hybrid polymers loaded with ZnTiO 3 nanoparticles were presented. Hybrid polymerused here are based on 3-glycidyloxypropyltrimethoxysilane (GPTMS). ZnTiO 3 nanoparticles was used to impart cotton based fabric UV-protection, antibacterial and self-cleaning properties. The viability of the novel finishing as UV-protection will be dictatedby UV-Vis spectroscopy and byassessment of the ultraviolet protection factor (UPF). The antibacterial activity of these sol-gel derived hybrid materials will be researched against Gram-negative bacterium Escherichia coli DSMZ 498 and Gram-positive Micrococcus lutues ATCC 9341. Photocatalytic degradation (decolorization) of methylene blue (MB) in both ZnTiO 3 nanoparticles sol-gel solution /or on the coated fabrics was evaluated. The impact of this finishing technique on other fabric properties, e.g. air permeability, whiteness,and stiffness will be investigated.

Potential Application Techniques for Antimicrobial Textile Finishes

“…Other methods are polymer grafting of active agent during polymerization, crosslinking of active agent on to fiber surface via a suitable cross-linker, chemical modification of active agent for binding with fiber covalently, nano-scale core-shell particles, nanoscale colloidal solutions or hydrosols [10]. Among them potentially, antimicrobials are microencapsulated via emulsion polymerization or entrapping them in suitable sol-gel nanoparticles and applied to both natural and synthetic fibers [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25].…”

“…This method has shown good efficacy and durability even after several washes. Examples are ionic silver or silver-based compounds in silica matrix [11,[29][30][31][32][33][34][35][36][37], Zin based [17,22,23,[38][39][40] and Titanium based [41][42][43]. Furthermore, interactions between fiber surface and incorporated hydrosol containing antimicrobial agent can be efficiently tailor by a suitable cross-linker that persist the binding of agent on to fiber, e.g., attachment of titania hydrosol on to cellulose fiber via crosslinking of 1,2,3,4-butancetetracarboxylic acid (BTCA) Figure 4 & 5; [44].…”