Research On The Structure And Property Of The In-situ Growthed Nanosilver Silk Fabrics

Silk, a most important natural textile, is widely used in clothing fields for its excellent properties such as softness, gorgeous appearance, affinity to skin, and hygroscopic property. However, silk fabric is susceptible to micro-organisms, causing physicochemical degradation such as discoloration, mechanical strength loss, and foul odor generation, so may adversely affect human health. Nano-silver plays an important role on functional modification of antimicrobial textiles, but it exsit reunion and discoloration problems, becoming a domestic and overseas hotspot.The purpose of the present work is to form the nanosilver particles on the surface of silk fabrics, so as to improve its antimicrobial property.The multi-amine compound (RSD) was synthesized from methyl acrylate and polyethylene polyamine by polycondensation. On the basis of the principle of in-situ mechanism, nanosilver particles were directly formed on the surface of silk fabrics attributed to the reducibility of the multi-amine compound (RSD).The method can avoid the stability of the solution and aggregation of nanosilver particles. The scan electron microscope and absorption curve was used to characterize the nanosilver particles and discuss the process of the finished silk with the steam method, finally received a conclusion. The optimum technology was showed as follows: the silk fabric was treated with 2g/L RSD and 0.085g/L silver nitrate, and steamed 30 minutes after dipping 5 minutes.The silk fabric treated with the steamed nano-silver has good antibacterial performance and washing durability against s.aureus and E.coli. The finding indicated that the anti-UV performance of the silk fabric enhanced distinctly. In addition, the dyeability of lanasol dyes are enhanced, gained the same result compared to the saltless dyeing.Moreover, the moisture regain, water absorbability, anti-crease performance, fabric style and mechanical property changed little.