Improvement of the stability of sulfonate additives
Autor: | L. V. Romanyutina, A. S. Zhurba, I. I. Mishunina, V. N. Antonov |
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Rok vydání: | 1989 |
Předmět: | |
Zdroj: | Chemistry and Technology of Fuels and Oils. 25:244-246 |
ISSN: | 1573-8310 0009-3092 |
DOI: | 10.1007/bf00719824 |
Popis: | The preparation of physically stable dispersions of sulfonate additives ensures good quality of additives and high service characteristics of motor oils modified with them [i, 2]. However, the conditions for formation of a favorable colloidal structure of dispersions of alkaline calcium sulfonates and factors causing disturbance of its stability have been determined insufficiently. The coagulation of dispersions of sulfonate additives stabilized as a result of the formation of developed adsorption-solvate layers surrounding particles of a colloidally disperse phase [3, 4] is due to the effect of desolvating agents, namely, low-molcular-weight alcohols and ketones [5]. |
Databáze: | OpenAIRE |
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