Adsorption of Nonionic Surfactant from Its Aqueous Solution onto Commercial Rubber
作者:
M.N. SHALABY,
A.A. EL-FEKY,
期刊:
Journal of Dispersion Science and Technology
(Taylor Available online 1999)
卷期:
Volume 20,
issue 5
页码: 1389-1406
ISSN:0193-2691
年代: 1999
DOI:10.1080/01932699908943859
出版商: Taylor & Francis Group
关键词: nonionic surfactant;adsorption onto hydrophobic surface;polymer;and rubber.
数据来源: Taylor
摘要:
Adsorption of Ethoxylated Nonyl Phenol (ENP) surfactant from its aqueous solution onto a commercial tire cutting from different sites. Outer Peristalitic (O.P.), Outer Smouth (O.S.), and Internal Tire (I.T.) is studied after different immersion times, 24, 48, 72, and 144 hrs at 30° C. The adsorption isotherms are determined by a surface tension method. A two stepped L-type isotherm is characteristic below the CMC of ENP; above this concentration the isotherm deviates from the L-type and the slope of the isotherm increases sharply. A Langmuir fit has been found below the CMC of ENP. From the maximum amounts adsorbed at pseudo-plateau (Tmaxof the tested samples it was found that the efficiency of adsorption onto the rubber surface decreases in the order, O.P. > O.S. > I.T.
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