西安工程科技学院学报2007，Vol.21Issue(6)：791-798,8.
羊毛纤维吸附十二烷基磺酸钠的热力学研究
Thermodynamic study on the adsorption of sodium dodecyl sulfonate by wool fiber
摘要
Abstract
The adsorption isotherms of Sodium Dodecyl Sulfonate (SDS) onto wool fiber surface which experienced clean processing from an acid aqueous solution(pH3.0～3.5) by conductance method at 366K(93℃) were studied, so did the isotherms of wool adsorbing SDS from different aqueous solutions which containing various auxiliaries(containing glycol/benzalcohol and zinc sulfate). Some results can be found that all the adsorbed amounts of SDS show a descending trend at different degrees after adding the auxiliaries. The increasing solubility of the agent indicates the affinity of surfactant with water becoming stronger, and the trend of surfactant fleeing away water and adsorbed onto the wool is relatively decrease, which made the adsorbed amounts of SDS reduce. The surface micelle aggregation number and the standard Gibbs free energy for surface micellization of SDS adsorbed onto the wool/solution interface in the actions of different auxiliaries were estimated by the general adsorption isotherm formula,and the values of them is generally coinciding with the experiment results. The adsorption isotherms of disperse dye adsorbed onto the wool under the conditions of with and no auxiliaries ("DL" or "FL") were also studied. The adsorption and dyeing mechanism was also explored.关键词
羊毛/十二烷基磺酸钠/吸附等温线/分散染料Key words
wool/ sodium dodecyl sulfonate/ adsorption isotherms/ disperse dyes分类
化学化工引用本文复制引用
戴丽,耿信鹏,林国栋..羊毛纤维吸附十二烷基磺酸钠的热力学研究[J].西安工程科技学院学报,2007,21(6):791-798,8.基金项目
Foundation of Education Bureaum,Shaanxi Province(04JK182) （04JK182）
