SURFACE CHEMICAL DISPLACEMENT OF WATER AND/OR OIL FROM WEAPONS SUBSTRATES.
ARMY WEAPONS COMMAND ROCK ISLAND ILL RESEARCH AND ENGINEERING DIV
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In order to develop new and improved materials for weapons cleaning, several amphipathic polar organic liquids were evaluated for their ability to displace water and oil from chromium plated and zinc phosphate coated steel. Several polar-type rust inhibitors were also tested since weapons applications often require temporary protection from corrosion. Effective displacement of water or oil was found to be closely related to Marangani effects at the organic liquidwater-oil interface. Liquids studied were characterized by low surface tensions and high equilibrium spreading pressures. A formulation for water and oil displacement was proposed on the basis of the results obtained in this investigation. The formulation consisted of 2,6-dimethyl-4-heptanone diluted with a small amount of a more-volatile non-polar liquid and small percentages of a rust inhibitor and an antioxidant. Author
- Solvents, Cleaners and Abrasives