Accession Number : AD0721030

Title :   A Study of the Structural Changes in Mineral Oil Additives by Infrared Spectroscopy,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Vipper,A. B. ; Tarasov,V. A.

Report Date : 02 DEC 1970

Pagination or Media Count : 10

Abstract : Under wearability of motor oil additives we understand their diminution from oil and the loss of effectiveness as a result of decomposition, interaction with products of fuel combustion and the oxidation of oil, with filtering elements and other engine parts which come in contact with oil. The authors examine the wearability of additives in a narrower sense - the structural changes which lead to a decrease in content in the oil of the separate functional groups of additives. Mixtures of DS-11 oil with additives were studied before and after testing them on a PZV device according to a rigid procedure. The results of these tests (lacquer formation on the piston, the quantity and composition of oxidation products in the oil, and others) are given. The results of an analysis obtained by infrared spectroscopy and which attest to the structural changes in the molecules of the additives during oxidation of mineral oil in the PZV device are given. The structural elements of the additives were judged by IR-spectra obtained relative to the air, and also by the differential spectra partially described. (Author)

Descriptors :   (*LUBRICANT ADDITIVES, WEAR RESISTANCE), INFRARED SPECTROSCOPY, TEST METHODS, ANTIOXIDANTS, ORGANIC PHOSPHORUS COMPOUNDS, SULFUR COMPOUNDS, PHENOLS, SULFONATES, DECOMPOSITION, USSR

Subject Categories : Lubricants and Hydraulic Fluids

Distribution Statement : APPROVED FOR PUBLIC RELEASE