In-situ Deposition of Ag Nanoparticles on Dopamine Pre-Modified Cotton Fabric and Analysis of Its Functional Mechanical and Dyeing Properties

Abstract

This study investigates the potentiality of Ag nanoparticles for the preparation of value-added and improved functional textiles. It demonstrates the in-situ deposition of Ag nanoparticles on cotton fabric pre-functionalized by dopamine hydrochloride. Surface characterization of nano-Ag deposited fabric is done by SEM (scanning electron microscope) and EDS (energy dispersive spectroscopy) that confirms the shape and deposition of a higher amount of nano-Ag particles. The crystalline size and approximate shape are determined by X-ray diffraction spectroscopy. The results reveal that the nano-Ag deposition brings excellent performance on functional properties of cotton fabric. Antimicrobial activity is found as 82.60% reduction against S.aureus and 92% against E.coli measured by bacterial reduction rate (R%). The fabric also shows good UV protection power and admirable crease resistance. The fabric has also been dyed with reactive dyestuff and enhanced dyeing performance is found due to nano-Ag deposition. However, nano deposition causes a slight change in some important mechanical properties.