Enhanced Antibacterial and Flame Retardant Properties of Silk Fabric by Silver Colloid and Montmorillonite

Abstract

Silver colloid in blue color was synthesized by a chemical reduction method using NaBH₄ as a reducing agent. The silk fabric was dyed with the blue silver colloid at pH value 4-5 by adjusted pH with dropwise of acetic acid.  The dyeing process was performed by varying time (60 -120 minutes) and temperature (30 - 100°C). In addition, the effect of montmorillonite particles (MMT) for improving the flame retardant property of the silk fabric was investigated.  The dyed silk fabrics were characterized for microstructure and color by SEM and UV/vis spectrophotometer.  Moreover, antibacterial and flame-retardant properties were examined.