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用滴体积测表面张力的方法作出了１５℃时纯棉和纯毛纤维在不同ｐＨ值和盐浓度的水溶液中对十二烷基硫酸钠的吸附及脱附等温线．发现在不含盐及中性水溶液中，表面带负电的纯棉仍对Ｃ１２Ｈ２５ＯＳＯ３－负离子有少量吸附．讨论了溶液中加盐和降低溶液ｐＨ值时棉和毛对十二烷基硫酸钠的吸附量、吸附等温线的形状、临界表面胶团浓度（ＨＭＣ）以及表面胶团聚集数的变化．首次估算了表面胶团聚集数，并讨论了相应的吸附原因和吸附层结构．
The adsorption and desorption isotherms of sodium dodecyl sulfate on pure cotton and pure wool fibers at 15 ℃ in aqueous solution with different pH value and salt concentration were made by measuring the surface tension with drop volume. Found in salt-free and neutral aqueous solution, the surface of the negative charge of cotton is still a small amount of C12H25OSO3-anion adsorption. The adsorption amount of sodium dodecyl sulfate, the shape of adsorption isotherm, the critical surface micelle concentration (HMC) and the number of surface micelles aggregation were discussed when adding salt and reducing the solution pH. The number of surface micelles was estimated for the first time and the corresponding adsorption and adsorption layer structures were discussed.