Yan Biaobiao, Zhou Qingqing, Xing Tieling, Chen Guoqiang
National Engineering Laboratory for Modern Silk, Soochow University, Suzhou 215123, China.
Polymers (Basel). 2018 Jul 3;10(7):728. doi: 10.3390/polym10070728.
Nowadays, more and more attention has been paid to ecological environment problems, and the dyeing and finishing field is no exception. Environmentally friendly dyeing and finishing methods have been extensively studied. Inspired by the bioadhesive force of marine mussels, dopamine (DA) was applied as a dyestuff and investigated in textile dyeing. In this work, dopamine was dyed on silk with a rapid oxidation polymerization in the presence of metal ions (Fe) and sodium perborate oxidant (Ox). The polydopamine (PDA) was rapidly deposited on silk fabric and the dyeing process was optimized as follows: the concentration of DA was 2 g·L, and that of Fe was 2 mmol·L; the total reaction time was 50 min and reacted at 50 °C; 9 mmol·L Ox was added at 20 min. The K/S value of the treated silk fabric reached 11.46. The color fastness of dyed fabric to light fastness reached Level 4. The SEM and AFM tests showed that the particles attached to the fabric surface and increased the roughness. The XPS test further proved that polydopamine (PDA) was deposited on the fabric. The treated fabric also had a good anti-UV property with a UPF >30 and UVA <4%. The water contact angle of treated fabric attained 142.6°, showing better hydrophobicity, and the weft breaking strength was also improved. This environmentally friendly dyeing and finishing method can be applied and extended to other fabrics.
如今，生态环境问题越来越受到关注，印染领域也不例外。人们对环保型印染方法进行了广泛研究。受海洋贻贝生物粘附力的启发，多巴胺（DA）被用作染料并用于纺织品染色研究。在这项工作中，多巴胺在金属离子（Fe）和过硼酸钠氧化剂（Ox）存在下通过快速氧化聚合作用在丝绸上进行染色。聚多巴胺（PDA）迅速沉积在丝绸织物上，染色工艺优化如下：DA浓度为2 g·L，Fe浓度为2 mmol·L；总反应时间为50分钟，在50℃下反应；在20分钟时加入9 mmol·L的Ox。处理后的丝绸织物的K/S值达到11.46。染色织物的耐光色牢度达到4级。扫描电子显微镜（SEM）和原子力显微镜（AFM）测试表明，颗粒附着在织物表面并增加了粗糙度。X射线光电子能谱（XPS）测试进一步证明聚多巴胺（PDA）沉积在织物上。处理后的织物还具有良好的抗紫外线性能，紫外线防护系数（UPF）>30且紫外线A（UVA）<4%。处理后织物的水接触角达到142.6°，显示出更好的疏水性，纬向断裂强度也有所提高。这种环保型印染方法可以应用并推广到其他织物上。
