Anionic surfactant induced desorption of a cationic surfactant from mica

作者：Allen Finian J; Truscott Chris L; Welbourn Rebecca J L; Clarke Stuart M^*

来源：Applied Clay Science, 2018, 160: 276-281.

DOI：10.1016/j.clay.2018.02.010

• Neutron reflectivity
• Mica
• Didodecyldimethylammonium bromide
• Sodium dodecyl sulfate
• Surfactant
• Catanionic

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.

• 出版日期2018-8