INFLUENCE OF CONCENTRATION OF WATER AND COMPOSITION OF FATTY ACIDS ON STRUCTURE AND PROPERTIES OF SYNTHETIC LUBRICANT GREASES,
Abstract
A series of greases were prepared from the residue of the synthesis of synthetic fatty acids (acid number 103 mg KOH/g), C5-C9 acids (280 mg KOH/g), and acid water (248 mg KOH/g); the dispersion medium was a mixture of Z spindle oil and S machine oil. This composition corresponds to that of commercial synthetic grease. It was found that a change in the water content of the greases in the range of 1 to 5% does not affect their volume mechanical properties or structure, indicating that it is desirable to raise the water content of such greases to 4-5%. The structure of hydrated calcium lubricants prepared from soaps of narrow fractions of heat-treated and distilled synthetic fatty acids and their mixtures differs from the structure of fatty and synthetic greases in that it consists of rod-shaped, petal-shaped, and flaky soap crystallites. The greatest thickening capacity is displayed by C16-C20 acids with an average molecular weight of 286-300 and a purity of the fraction of no less than 90-95%. A wide boiling fraction of C13-C22 acids with a purity of no less than 98% is recommended for practical application and for producing high-quality synthetic grease. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 05, 1967
- Accession Number
- AD0677253
Entities
People
- M. B. Nakonechnaya
- N. K. Mankovskaya
- V. A. Prokopchuk
- V. V. Sinitsyn
- Yu. L. Ishchuk
Organizations
- National Air and Space Intelligence Center