FORMULATION OF WATER-SOLUBLE COATING FOR HYDRODYNAMIC RESISTANCE DECREASE

摘要

A formulation of water-soluble coating for hydrodynamic resistance decrease comprises polyethylene oxide, filler (leafing aluminium or bronze powder) and mixture solvents in methylene chloride with isopropanol or methylene chloride with ethanol, or dichloroethane with isopropanol, urea at following ratio of components (parts by weight):PEO100;filler5-50;solvents3700-4000urea10-50.