METHOD FOR FABRICATING ORGANIC MATTER IMPREGNATED SPHERICAL SILICA POWDER

摘要

PURPOSE: A method for fabricating organic matter impregnated spherical silica powder is provided to reduce frictional force and increase packing ratio by fabricating silica powder in a sphere shape and give functionality or stabilize the organic matter by impregnating organic matter into inorganic matter. CONSTITUTION: In a method for fabricating organic matter impregnated silica powder by sol-gel method, the method for fabricating the organic matter impregnated spherical silica powder comprises the processes of preparing an emulsion in a water/oil shape by mixing the resulting solution using an emulsifier after adding a surfactant in which span 60 is mixed with tween 80 in a mixing ratio of 1:2 to a nonpolar solvent and adding a solution in which water glass solution, alkylsiloxane as a stabilizer and organic matter to be impregnated are mixed to the mixture; gelating the emulsion as slowly adding an aqueous solution of ammonium carbonate to the emulsion; and cleaning the first dried powder with ion exchange water and secondly drying the cleaned powder after filtering the gelated and precipitated powder, cleaning the filtered powder with acetone and firstly drying the cleaned powder at a temperature of 50 to 100 deg.C.