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Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/324

Title: Experimental Studies on Adsorption of Surfactants Onto Cellulosic Surface and its relevance to Detergency
Authors: Paria, S
Manohar, C
Khilar, K C
Issue Date: 2003
Publisher: The Institution of Engineers, Singapore
Citation: Journal of the Institution of Engineers, Singapore, Vol 43, No 2, P 34 - 44
Abstract: The adsorption of anionic - sodium dodecylbenzenesulfonate (NaDBS), cationic – cetyl trimethyl ammonium bromide (CTAB) and nonionic - Triton X-100 (TX-100) surfactants under different conditions on cellulose-water interface are investigated. The adsorption isotherms in general, show four different regimes for the three types of surfactant, such as anionic, cationic and nonionic with some differences. Two important phenomena reflected in the adsorption isotherms are the steep enhancement in the extent of adsorption due to hemimicellization below the critical micellar concentration (CMC) and the reduction in the extent of adsorption above the CMC. The adsorption isotherm for NaDBS shows a maximum at CMC and beyond CMC it shows a decrease in the extent of adsorption. However, for TX-100 and CTAB, hemimicellization occurs with steep enhancement below CMC and the adsorption isotherm levels off without showing a maximum. Adsorption of anionic surfactant, NaDBS gets enhanced...
Description: Copyright for this article belongs to the Institution of Engineers, Singapre
URI: http://hdl.handle.net/2080/324
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