Synthesis of novel carbene dyes and investigation of their dyeing properties and reaction mechanism for various fabrics
作者:Yunpeng Wang、Tao Zhao、Xiaoye Bi、Chencheng lv
DOI:10.1016/j.dyepig.2023.111784
日期:2024.1
dye molecules and synthetic fibers requires addition of numerous chemical additives during the dyeing process, resulting in the generation of a significant amount of printing and dyeing wastewater, thereby causing environmental pollution. Herein, three novel carbene dyes containing diazirine were rationally designed, whose decomposition into carbenes at 145 °C subsequently forms covalent bonds with the
传统染料分子与合成纤维之间的相互作用较弱,在染色过程中需要添加大量化学助剂,导致产生大量印染废水,造成环境污染。本文合理设计了三种含有二氮丙啶的新型卡宾染料,其在145℃下分解为卡宾,随后与纤维中存在的C-H键形成共价键。根据密度泛函理论(DFT)计算结果分析了染料的结构-性能关系。此外,吉田相关性的计算表明,所有三种染料都表现出非爆炸性,从而表明它们大规模生产的可行性。涤纶(聚对苯二甲酸乙二醇酯/PET)、丙纶(PP)、芳纶、氨纶、涤纶/氨纶(P/S)混纺织物的染色工艺采用非水溶剂染色方法,不添加任何助剂,确定了最佳染色和固色条件。用卡宾染料染色的样品与常规染色样品相比表现出相似的K/S值、更高的固色率和改善的混纺染色效果,并且阐明了卡宾染料与纤维之间的反应机理,证明了卡宾染料的通用性和环境友好性新型卡宾染料及非水溶剂染色方法的研究 此外,值得注意的是,所有这些染色织物都表现出优异的色牢