Abstract The adsorption and desorption of a cationic surfactant, didodecyldimethylammonium bromide, from water onto a mica surface have been investigated using neutron reflectivity. The surfactant was observed to adsorb strongly as a bilayer that was tenacious to a sustained water wash, but on the addition of an anionic surfactant, sodium dodecyl sulfate, at its critical micelle concentration complete desorption was observed.

中文翻译：

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阴离子表面活性剂诱导云母中阳离子表面活性剂的解吸

摘要 使用中子反射率研究了阳离子表面活性剂双十二烷基二甲基溴化铵从水中吸附和解吸到云母表面上的过程。观察到表面活性剂以双层的形式强烈吸附，对持续水洗很顽强，但在加入阴离子表面活性剂十二烷基硫酸钠后，在其临界胶束浓度下观察到完全解吸。