Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic.
Int J Biol Macromol. 2012 Jun 1;50(5):1245-53. doi: 10.1016/j.ijbiomac.2012.03.018. Epub 2012 Mar 30.
Multifinishing treatment of cotton fabrics was carried out using core-shell nanoparticles that consists of silver nanoparticles (Ag(0)) as core and chitosan-O-methoxy polyethylene glycol (CTS-O-MPEG) as shell. The synthesized (Ag(0)-CTS-O-MPEG) core-shell nanoparticle was applied to cotton fabrics using the conventional pad-dry-cure method. The finished fabrics were examined for their morphological features and surface characteristics by making use of scanning electron microscope (SEM-EDX), which reveals the well dispersion of (Ag(0)-CTS-O-MPEG) core-shell nanoparticles on cotton fabrics. Factors affecting the treatment such as core shell nanoparticles, citric acid (CA) concentration as well as curing temperature were studied. The treated fabrics, at optimum condition of 1% core shell nanoparticles, 5% citric acid, drying at 80°C, curing at 160°C for 2 min, showed excellent antibacterial activity against Gram-negative Escherichia coli (E. coli) and Gram-positive bacteria Staphylococcus aureus (S. aureus), even after 20 washing cycles in addition to an enhancement in crease recovery angles (CRA) along with a slight improvement in tensile strength (TS).
棉织物的多功能整理采用核壳纳米粒子进行，核壳纳米粒子由银纳米粒子（Ag(0)）作为核和壳聚糖-O-甲氧基聚乙二醇（CTS-O-MPEG）组成。合成的（Ag(0)-CTS-O-MPEG）核壳纳米粒子通过常规的轧烘-固色法应用于棉织物。利用扫描电子显微镜（SEM-EDX）对整理后的织物进行形貌特征和表面特性的检测，结果表明（Ag(0)-CTS-O-MPEG）核壳纳米粒子在棉织物上具有良好的分散性。研究了影响处理的因素，如核壳纳米粒子、柠檬酸（CA）浓度和固化温度。在最佳条件下，用 1%的核壳纳米粒子、5%的柠檬酸，在 80°C 下干燥，在 160°C 下固化 2 分钟，处理后的织物对革兰氏阴性大肠杆菌（E. coli）和革兰氏阳性金黄色葡萄球菌（S. aureus）具有优异的抗菌活性，甚至在经过 20 次洗涤循环后仍具有这种活性，同时还提高了折痕回复角（CRA），略微提高了拉伸强度（TS）。
