Moisture absorption and hydrolytic stability of aviation oils for gas-turbine motors

Autor: R. K. Shigina, K. S. Chernova, N. N. Kozlova, N. I. Kaverina
Rok vydání: 1969
Předmět:
Zdroj: Chemistry and Technology of Fuels and Oils. 5:748-751
ISSN: 1573-8310
0009-3092
DOI: 10.1007/bf00719373
Popis: 1. Compared with the similar foreign oils, turbo-oil-35 and turbo-oil-300, synthetic oils VNII NP-7 and VNII NP-50-1-4F are less hydrolytically stable, because of which the quality of VNII NP-7 and VNII NP-50-1-4F oils is appreciably reduced upon absorption of moisture from the air. To improve the hydrolytic stability of VNII NP-7 and VNII NP-1-50-4F oils, it is necessary to seek out anti-hydrolysis additives to them. 2. MN-7.5 oil, which is fundamentally a mineral oil, is more stable hydrolytically, and therefore corrosion of a copper plate is slight and the acid number increased only slightly.
Databáze: OpenAIRE