STUDY OF THE EFFECT OF ULTRASONIC TREATMENT OF SULFONATE AND PHENATE ADDITIVES ON ANTICORROSIVE ACTIVITY AND RESISTANCE TO SLUDGE FORMATION OF A PACKAGE OF ADDITIVES TO LUBRICATING OILS
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Abstract
In the article the influence of ultrasonic treatment of sulfonate and phenate additives on anticorrosive activity and resistance to sludge formation of additive packages to lubricating oils is considered. Samples of packages with different composition and mixing technology, including treatment of high alkaline calcium sulfonate and calcium phenate by ultrasonic vibrations with frequency of 20-30 kHz have been investigated. It was found that the use of ultrasound with specific energy up to 500 J/cm³ allows increasing the anticorrosive activity of the additive package by 2.8 times without adverse effect on the tendency to precipitation and oxidative stability. The change in the electrode potential of metals confirms the improvement of the protective properties of the treated packages. The results open perspectives for improving the efficiency of additive systems in lubricants of internal combustion engines.
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References
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