期刊
JOURNAL OF SURFACTANTS AND DETERGENTS
卷 18, 期 2, 页码 321-328出版社
WILEY
DOI: 10.1007/s11743-014-1644-8
关键词
Cocamidopropyl betaine; Amphoteric surfactant; Surface properties
资金
- [03/32/DS-PB/0441]
Surfactants are important ingredients of personal care products and household products. The main characteristic of these compounds is to decrease the surface tension of solvent and resulting many properties such as contact angle, foam properties etc. The coexistence of other ingredients in the product may affect the properties of surfactants. One of the main components contained in almost every personal care and household product is sodium chloride. The main aim of this work was to determine the effect of this salt on some surface and usage properties of cocamidopropyl betaine (CAPB). From our experiments it was shown that the effect of added sodium chloride in the aqueous solutions of CAPB on the properties is the opposite to the one described in the literature for cationic and anionic surfactants, i.e., CMC increases with increasing ionic strength, foam height decreases with increasing salt concentration. Our investigation showed that sodium chloride makes worse the properties of the CAPB solutions examined in this work.
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