The rheology of two adsorbed layers of polymethacrylate (PMA) between two carbon surfaces were investigated using a Surface Force Apparatus (SFA). Each polymer layer is obtained by adsorption in a dilute solution of PMA polymer and dispersant DPMA polymer in a 175 Neutral Solvent basestock at 25°C. The aim of these experiments is the characterization of steric behavior of the polymer films. It is found that the adsorption of pure PMA on carbon surface is low, so the steric repulsion is inefficient and that adhesion between the carbon surfaces takes place as in pure base oil. In the contrary, the adsorption of dispersant PMA on carbon surface forms a 34 nm thick protective layer, which can give an effective repulsion effect.


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    Titel :

    Steric Repulsion of Polymethacrylate Layers


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Diraison, C. (Autor:in) / Georges, E. (Autor:in) / Georges, J.-M. (Autor:in)

    Kongress:

    International Fuels & Lubricants Meeting & Exposition ; 1996



    Erscheinungsdatum :

    01.05.1996




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Steric repulsion of polymethacrylate layers

    Georges,E. / Georges,J.M. / Diraison,C. et al. | Kraftfahrwesen | 1996


    Steric Repulsion of Polymethacrylate Layers

    Georges, E. / Georges, J.-M. / Diraison, C. et al. | British Library Conference Proceedings | 1996


    Polymethacrylate

    Buck,M. / Schreyer,G. | Kraftfahrwesen | 1980


    Polyaspartamide-graft-Polymethacrylate Nanoparticles for Doxorubicin Delivery

    Licciardi, M. / Cavallaro, G. / Di Stefano, M. et al. | British Library Online Contents | 2011


    PERMANENT REPULSION DEVICE

    SAOTOME KAZUJI | Europäisches Patentamt | 2018

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