Publication: Wetting study of hydrophobic membranes via liquid entry pressure measurements with aqueous alcohol solutions
Loading...
Official URL
Full text at PDC
Publication Date
2000-10-15
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
Academic Press Inc Elsevier Science
Citations
Exportar
Abstract
A new concept of liquid entry pressure measurements is applied to study the hydrophobicity of microporous membranes for aqueous alcohol solutions. The effects of alcohol concentration, type of alcohol, and temperature on liquid entry pressure of the membrane have been studied. Two theoretical equations for the determination of membrane pore size have been proposed. The former equation was developed taking into account the deviation from the Laplace-Young equation due to the membrane structure by means of the structure angle. The latter equation was established considering only the range of alcohol concentration in which the dispersion component of liquid surface tension remains practically constant. Hydrophobicity has been expressed in terms of wetting surface tension, gamma (W)(L). Based on these measurements, the maximum concentration before the spontaneous wetting occurs would be predicted.
Description
© 2000 Academic Press. The authors gratefully acknowledge Professor J. Morales Bruque at Extremadura University (Spain), who provided the facilities and helped carry out
the contact angle measurements. The authors also thank CICYT (Spain), Projects ALI-94-1044-CO3-02 and PB98-0788, for financial support.
UCM subjects
Unesco subjects
Keywords
Citation
1. Franken, A. C. M., Nolten, J. A. M., Mulder, M. H. V., Bargeman, D., and Smolders, C. A., J. Membr. Sci. 33, 315 (1987).
2. Gekas, V., Persson, K. M., Wahlgren, M., and Sivik, B., J. Membr. Sci. 72, 293 (1992).
3. Durham, R. J., and Nguyen, M. H., J. Membr. Sci. 87, 181 (1994).
4. Izquierdo Gil, M. A., García Payo, M. C., and Fernández Pineda, C., J. Membr. Sci. 155, 45 (1999).
5. Izquierdo Gil, M. A., García Payo, M. C., and Fernández Pineda, C., Sep. Sci. Technol. 34(9), 1773 (1999).
6. Nakao, S., J. Membr. Sci. 96, 131 (1994).
7. Kim, K. J., Fane, A. G., Ben Aim, R., Liu, M. G., Jonsson, G., Tessaro, I. C., Broek, A. P., and Bargeman, D., J. Membr. Sci. 87, 35 (1994).
8. Keurentjes, J. T. F., Harbrecht, J. G., Brinkman, D., Hanemaaijer, J. H., Cohen Stuart, M. A., and van’t Riet, K., J. Membr. Sci. 47, 333 (1989).
9. McGuire, K. S., Lawson, K. W., and Lloyd, D. R., J. Membr. Sci. 99, 127 (1995).
10. Lee, Y., Jeong, J., Youn, I. J., and Lee, W. H., J. Membr. Sci. 130, 149 (1997).
11. Smolders, K., and Franken, A. C. M., Desalination 72, 249 (1989).
12. García Payo, M. C., Izquierdo Gil, M. A., and Fernández Pineda, C., J. Membr. Sci. 169, 61 (2000).
13. Kim, B., and Harriott, P., J. Colloid Interface Sci. 115, 1 (1987).
14. Zha, F. F., Fane, A. G., Fell, C. J. D., and Schofield, R. W., J. Membr. Sci. 75, 69 (1992).
15. Lucassen-Reynders, E. H., J. Phys. Chem. 67, 969 (1963).
16. Bargeman, D., J. Colloid Interface Sci. 40, 344 (1972).
17. Dann, J. R., J. Colloid Interface Sci. 32, 302 (1970).
18. Jańczuk, B., Bialopiotrowicz, T., and Wójcik, W., Colloids Surf. 36, 391 (1989).
19. Drelich, J., Miller, J. D., and Good, R. J., J. Colloid Interface Sci. 179, 37 (1996).
20. Tröger, J., Lunkwitz, K., and Bürger,W., J. Colloid Interface Sci. 194, 281 (1997).
21. Vázquez, G., Álvarez, E., and Navaza, J. M., J. Chem. Eng. Data 40, 611 (1995).
22. Gliński, J., Chavepeyer, G., and Platten, J. K., J. Chem. Phys. 102, 2113 (1995).
23. van Giessen, A. E., Bukman, D. J., and Widom, B., J. Colloid Interface Sci. 192, 257 (1997).