The Penn State Microoxidation Test has been adapted for use with mineral oil base stocks and fully formulated automotive crankcase oils. Tests under nitrogen and air atmospheres coupled with analyses using gel permeation chromatography (GPC) and clay column adsorption provide for a semiquantitative analysis of the products by elution time (apparent molecular size). This test procedure allows for primary and secondary oxidation reaction rate studies after substantial quantities of the lubricant have been oxidized. Time-temperature studies can show the effectiveness of base oil quality as well as effects contributed by additives. A general time-temperature equivalence in the range of 200 to 225°C has been demonstrated for a series of formulated engine oils. Microoxidation tests have been compared with III-C hot engine tests for a series of ASTM reference oils.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Adaptation of the Penn State Microoxidation Test for the Evaluation of Automotive Lubricants


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Klaus, E. E. (Autor:in) / Dang, H. (Autor:in) / Cho, L. (Autor:in)

    Kongress:

    1980 SAE International Fall Fuels and Lubricants Meeting and Exhibition ; 1980



    Erscheinungsdatum :

    1980-10-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Microoxidation Evaluation of Automotive Crankcase Oils

    Klaus, E. E. / Cho, L. F. | SAE Technical Papers | 1983


    Synthetic automotive lubricants

    Mobil Research and Development,US | Kraftfahrwesen | 1987


    Protective automotive lubricants

    Zakar, A. | Tema Archiv | 1992


    ADVERTISERS - Penn State

    Online Contents | 2002