The additives AKİ-26 and AKİ-26d - calcium salts of condensation products (С8-С12; С12) of alkylphenol, formaldehyde, piperidine and their carbonated versions of AKİ-126 have been obtained. The additives obtained have good functional properties. In anticorrosion and antixodizing properties AKİ-26 and AKİ-26d additives are superior to the analogues АСК and ИХП-101; AKİ-26 and AKİ-26d additives by anticorrosion properties surpass the foreign additives ВНИИНП-714 and МАСК. The comparison of synthesized additives justifies that AKİ-26d additive significantly overpasses AKİ-26 by its anticorrosion and antioxidizing properties. М-10Г2 motor oil corresponding to ГОСТ 8581-92 has been developed using AKİ-26d and industrial additives and by functional performence is as good as foreign analogue “Shell”.
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