Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

    Records 1 - 8 / 8

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    Surface dilation and fluid-dynamical behavior of Newtonian liquids in an overflowing cylinder. II. Surfactant solutions.
    Bergink-Martens, D.J.M. ; Bos, H.J. ; Prins, A. - \ 1994
    Journal of Colloid and Interface Science 165 (1994). - ISSN 0021-9797 - p. 221 - 228.
    Surface dilational behaviour of a mixture of aqueous ß-lactoglobulin and Tween 20 solutions.
    Clark, D.C. ; Wilde, P.J. ; Bergink-Martens, D.J.M. ; Kokelaar, J.J. ; Prins, A. - \ 1993
    In: Proc. Conf. Food, colloids and polymers: stability and mechanical properties, E. Dickinson, P. Walstra (eds.). Lunteren, The Netherlands 1992. Royal Soc. Chem - p. 354 - 364.
    Interface dilation : the overflowing cylinder technique
    Bergink - Martens, D.J.M. - \ 1993
    Agricultural University. Promotor(en): A. Prins, co-promotor(en): H.J. Bos. - S.l. : Bergink-Martens - ISBN 9789054851288 - 151
    vloeistofmechanica - capillairen - oppervlaktespanning - hydrodynamica - vloeistoffen (liquids) - vloeistoffen (fluids) - grenslaag - oppervlakteverschijnselen - fluid mechanics - capillaries - surface tension - hydrodynamics - liquids - fluids - boundary layer - surface phenomena

    A pure steady-state dilation of a liquid interface, either liquid-air or water-oil, can be accomplished far from equilibrium by means of the overflowing cylinder technique. The resulting dynamic surface tension data correlate well with characteristic parameters of processes like foaming, emulsification, and the spreading of droplets and thin liquid layers.

    Fundamental knowledge of the physical mechanism of operation of the overflowing cylinder technique is obtained by analyzing the relation between interface dilation and underlying bulk flow. Upon the addition of a surfactant the interface velocity increases considerably, since the propulsion mechanism changes from driven by the bulk flow to surface tension gradient driven.

    The surface rheological behaviour of the expanding interface is studied for various surfactant solutions. Generally practical systems give rise to a major increase in surface tension during interface dilation. The results are discussed in terms of the transport of surfactant components.

    The present findings explain why the overflowing cylinder technique is such a useful too[ for studying many practical processes which imply interface dilation far from equilibrium. Meanwhile, however, they urge a reconsideration of the meaning of the surface dilational viscosity.

    Dynamic surface properties in relation to dispersion stability.
    Prins, A. ; Bergink-Martens, D.J.M. - \ 1993
    In: Proc. Conf. Food, colloids and polymers: stability and mechanical properties, E. Dickinson, P. Walstra (eds.). Lunteren, The Netherlands 1992. Royal Soc. Chem - p. 291 - 300.
    Dilation of fluid interfaces in a vertical overflowing cylinder.
    Bergink-Martens, D.J.M. ; Bos, H.J. ; Kalsbeek, H.K.A.I. van; Prins, A. - \ 1993
    In: Proc. Conf. Food, colloids and polymers: stability and mechanical properties, E. Dickinson, P. Walstra (eds.). Lunteren, The Netherlands 1992. Royal Soc. Chem - p. 376 - 386.
    Surface dilational behaviour of surfactant solutions: a comparison between the overflowing cylinder and the free falling film technique.
    Bergink-Martens, D.J.M. ; Bisperink, C.G.J. ; Bos, H.J. ; Prins, A. ; Zuidberg, A.F. - \ 1992
    Colloids and Surfaces 65 (1992). - ISSN 0166-6622 - p. 191 - 199.
    De overlopende cylinder; oppervlaktereologie aan een expanderend vloeistofoppervlak.
    Bergink-Martens, D.J.M. ; Prins, A. - \ 1990
    Materialen 8 (1990). - p. 2 - 5.
    Surface dilation and fluid-dynamical behavior of newtonian liquids in an overflowing cylinder. I. Pure liquids.
    Bergink-Martens, D.J.M. ; Bos, H.J. ; Prins, A. ; Schulte, B.C. - \ 1990
    Journal of Colloid and Interface Science 138 (1990). - ISSN 0021-9797 - p. 1 - 9.
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