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Adsorption mechanism of a cationic surfactant on textiles in excess anionic surfactant solution
Author(s) -
Yanaba Shigeru,
Kanao Hirofumi,
Okumura Osamu
Publication year - 1988
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02546021
Subject(s) - cationic polymerization , pulmonary surfactant , adsorption , ammonium chloride , chemistry , chemical engineering , ammonium , textile , adhesion , chloride , materials science , polymer chemistry , organic chemistry , composite material , biochemistry , engineering
The present study was carried out to clarify the adsorption mechanism of a cationic surfactant (dihydrogenated tallow dimethyl ammonium chloride (DHTDMAC) onto various fibers in excess of anionic surfactant solutions. Actually, in such a solution, DHTDMAC becomes an anionic/cationic complex and comes into contact with fibers through the physical force of mechanical stirring. At that time, adsorption of the complex onto textile depends on the extent of the work of adhesion (WA). In fact, WA and amounts of DHTDMAC adsorbed onto fibers were correlated very closely. Furthermore, the difference of WA according to the complex is discussed. Two hypotheses are presented. One is based on differences arising from the hydrophobic character of the complex itself. The other is based on the manner in which the anionic surfactant and cationic surfactant are situated in the complex molecule. The WA of the complex is explained on the basis of these hypotheses.