One of the concerns for biolubricants is the improvement of their oxidation resistance. In this paper the oxidative behavior of seven different types of biobased lubricants basestocks is examined. The aim was to study their relative oxidation stability and also to investigate their response to various antioxidants. The renewable lubricants were treated with four antioxidant additives at a concentration of 0.5% wt. and a comparative assessments of the latters' effectiveness in suppressing the oxidation rate was carried out. Alterations in the acid value were examined as well as relative changes of the oxidized samples by FTIR spectroscopy. The oxidation stability was assessed by employing a Rapid Small Scale Oxidation Test (RSSOT) apparatus according to the accelerated oxidation stability standard method ASTM D7545/EN16091. RSSOT is a relatively new method and thus the behaviour of biobased lubricants and antioxidant agents in this accelerated method has not been thoroughly examined.


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    Title :

    Oxidation Stability Study of Biobased Lubricant Basestocks


    Additional title:

    Sae Technical Papers



    Conference:

    JSAE/SAE 2015 International Powertrains, Fuels & Lubricants Meeting ; 2015



    Publication date :

    2015-09-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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