Adsorption Kinetics of Reactive Dyes on Silk with Octyl Butyl Dimethyl Ammonium Bromide as Accelerant
With octyl butyl dimethyl ammonium bromide (OBDAB) as accelerant,adsorption kinetics of dyeing silk with three reactive dyes was studied in this paper.As concentration of OBDAB increased,the dye-uptake rate increased.The highest dye-uptake rates of three reactive dyes could reach to 89.40%~98.98% and the concentration of OBDAB was only 6-8g/L.This showed OBDAB was an effective accelerant.Pseudo first-and second-order kinetic models were used to analyze the adsorption kinetic data.The experimental data were found to follow the second-order kinetic model.Meanwhile,the initial dye adsorption rates of reactive red dye B-3BF,reactive yellow dye B-4RFN and reactive orange dye B-2RLN increased as temperature increased,and the activation energy of them were found respectively to be 28.42,13.14,32.90 kJ/mol.The positive values of △H and △G obtained indicated that reactive dyes adsorption with OBDAB as accelerant was an endothermic process.The conclusion showed OBDAB was a potential accelerant.
Adsorption Kinetics Silk Reactive dyes Dyeing
Cheng Chen Guangxian Zhang Fengxiu Zhang Hui Zheng
College of Textiles and Garments, Southwest University, China School of chemistry and chemical engineering, Southwest University, China
国际会议
太原
英文
278-282
2012-06-23（万方平台首次上网日期，不代表论文的发表时间）