电化学在染色工艺中的应用研究 毕业论文.doc

毕业设计（论文） 题 目：电化学在染色工艺中的应用研究 学 院：轻工纺织学院 专业班级： 学生姓名： 指导教师： 成 绩： 2011 年6月15日 摘 要 从动力学角度对丝绸织物电化学染色进行了初步探索研究，实验采用石墨电极、新石墨电极，进行了不同电压、不同温度、不同时间下的丝绸织物电化学染色，并从上染百分率、扩散系数等角度对丝绸电化学染色性能进行了探讨，给出了上染百分率随电压Ｕ变化的经验方程。实验结果表明：① 新石墨电极比常规石墨电极上染率高，主要原因是新的石墨电极形成的电场大于石墨电极，说明电极材料的改进可以继续提高染料的上染速率，为电化学染色工艺的研究拓宽了领域。②电化学染色工艺比普通染色工艺更能提高上染百分率，其原因是电化学染色达到平衡时，染料在液相中的纯化学位及其活度均低于常规染色平衡时的纯化学位及其活度。增加槽电压和温度时，扩散系数会比常规染色增加。应用电化学染色技术可提高染料对纤维的上染百分率，降低能源耗，在经济上是合理，在技术上是可行，值得进一步深入研究。 关键词：丝绸；电化学染色；上染百分率；扩散系数；新石墨电极 Abstract The article from the perspective of dynamics research silk fabric electrochemical dying. Used graphite electrode and new graphite electrode, at different voltage, different temperature and different time carry out the silk fabric electrochemical dyeing experiment, and from the perspective of dyeing percentage, diffusion coefficient discuss the silk electrochemical dyeing properties, and given the equation of dyeing percentage changes with voltage U. Experiment results show that:① new graphite electrode dyeing uptake rate better than conventional graphite electrode dyeing, the reason is that the modified graphite electrode’s electric voltage is higher than conventional graphite electrode . this suggested that: modify the material of electrode can improving dyeing uptake, which can widen the field for electrochemical dyeing research.② compare with the normal dyeing process the electrochemical dyeing process can improve the dyeing percentage, its reason is that the purification degree and its activity in liquid were lower than that of the conventional dyeing balance. Compared with the conventional dyeing when increases the bath voltage and temperature the diffusion coefficients increased .The electrochemical dyeing technology can improve the dye exhaustion, reduce the energy consumption and economically reasonable, technically feasible deserv