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| 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 |
| Appears in Collections: | Journal Articles
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| PARIA-IES-03.PDF | | 1024Kb | Adobe PDF | View/Open |
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