吸附和原位生成纳米银整理真丝织物比较研究

Comparative Study on Silk Fabrics Finished by Nano-silver with Adsorption and In-situ Reaction

由于改性超支化聚合物PNP不仅能够控制制备具有较小粒径的纳米银水溶液,还能够原位控制生成纳米银对纺织品进行整理,利用PNP研究了纳米银浸渍吸附法和原位生成法整理真丝织物的效果,对整理的真丝织物进行了表征,并测试了其抗菌性能。结果表明:原位生成法纳米银整理真丝织物能够获得较浸渍吸附法更高的纳米银含量,并且整理的纳米银具有更好的耐洗牢度。原位生成整理的真丝织物纤维表面均匀分布了大量单质银纳米颗粒,整理的真丝织物对金黄色葡萄球菌和大肠杆菌均具有优异的抗菌性能,当整理液中AgNO3摩尔浓度为0.05 mmol/L时,整理的真丝织物抑菌率达到了99%以上。

As modified hyperbranched polymer PNP can not only control the preparation of nano-silver solution with a small grain size, but also control the generation of nano-silver in situ for finishing textiles. This paper uses PNP to study the effect of silk fabrics finished with nano-silver steeping adsorption method and in-situ reaction methods, characterizes finished silk fabrics and tests their antibiotic property. The result shows that, finishing of silk fabrics by nano-silver with in-situ reaction method can produce a higher nano-silver content than steeping adsorption method and the finished nano-silver has a better fastness to washing. A lot of elemental silver nano-particles are uniformly distributed on the fiber surface of silk fabrics finished with in-situ reaction method. Finished silk fabrics have a good antibiotic property against staphylococcus aureus and escherichia coli. When the molar concentration of AgNO3 in the finishing liquor is 0.05 mmol/L, the antibacterial rate of finished silk fabrics reaches over 99%.