纯棉织物电化学前处理技术探讨

采用不锈铜丝网阳极氧化并制备PbO2（二氧化铅）电极，电流密度在10mA·cm^-2时获得的较好的PbO2沉积情况。采用三电极体系研究了该不锈钢基PbO2电极应用于纯棉织物前处理工艺，发现该前处理工艺是可行的，可以有效缩短棉织物前处理加工时间，提高生产效率。正交试验得出棉织物前处理最佳工艺条件为无水硫酸钠0．1mol·L^-1，阳极电流密度80mA·cm^-2．氢氧化钠6g·L^-1，20℃处理45min。与传统的前处理工艺相比，电化学法处理后织物的白度稍低，但是断裂强力更高。

Preliminary Study on Pretreatment of Cotton Fabrics by Electrochemical Methods

A lead dioxide electrode was prepared via anode oxiding technique of stainless steel mesh with better deposition of PbO2 at optimum current density of 10 mA·cm^-2. Three electrode method was adopted to investigate the stainless steel based lead dioxide electrode in the pretreatment of cotton fabrics. The technique was feasible with shorter process time and higher efficiency. Results of orthogonal experiments showed that the most optimum combination was anhydrous sodium sulfate（ Na2SO4 ） 0.1 mol· L^-1, current density 80mA ·cm^-2, sodium hydroxide （NaOH） 6 g·L^-l, temperature of 20 centigrade degree for45 minutes. Compared with traditional pretreatment processes of cotton fabrics, higher tensile strength with lower whiteness could be achieved by the electrochemical pretreatment method.