DEVELOPMENT OF NONFLAMMABLE HYDRAULIC FLUID
Bi-monthly progress rept. no. 4, 1 Oct-1 Dec 1964
AMERICAN OIL CO WHITING IN
Pagination or Media Count:
The object of the study is the development of a waterbase hydraulic fluid which 1 yields a fire-resistant non-aqueous residue, 2 is compatible with materials of construction and sea-water contamination, 3 satisfactorily lubricates shipboard pumps, 4 presents no un usual storage or handling problems, and 5 exhibits no toxicological hazards under conditions of use. Lowdensity polyethylene can be chlorophosphonated by reaction with phosphorus trichloride and oxygen. Hydrolysis and neutralization produces products which show considerable promise as thickeners. The product from 21,000-molecular- weight polyethylene, neutralized to a pH of 8.0 with sodium hydroxide, produces a fluid which 1 has the desired viscosity, 2 is shear stable in tests using a Raytheon Sonic Oscillator, 3 can be rendered non-corrosive to iron, copper, aluminum, zinc, and silver braise by the addition of 1.0 of sodium chromate or sodium dichromate, 4 has no deleterious effect on Buna N rubber, 5 is compatible with 10 synthetic sea water, 6 is non-toxic and non-irritating, and 7 appears to produce non-aqueous residues having satisfactory flammability characteristics.
- Lubricants and Hydraulic Fluids