METHOD OF SURFACE MODIFICATION

摘要

The present invention relates to a method for modifying the surface of a solid material, the method comprising the steps of: mixing a surface modifying agent and intermediate gas, wherein the surface modifying agent includes two or more functional groups selected from the group consisting of an ether group (-O-), a carbonyl group (>C=O), and a hydroxyl group (-OH) or includes an organic compound containing one or more functional groups selected from the above-described group and a carbon-carbon double bond or a triple bond; injecting combustible gas into the mixed gas of the surface modifying agent and the intermediate gas, and performing pyrolysis for heating the same at 400-1,400°C or performing photolysis for irradiating light of 10-5,000 mJ/cm^2 to the mixed gas; and spraying a result of the pyrolysis or a result of the photolysis onto the surface of the solid material. Accordingly, an adhesion-resistant surface can be simply and rapidly modified to become hydrophilic, and hydrophilic properties are maintained for a long time so that adhesion with adhesives, ink, and paint can be improved. Moreover, the method for modifying the surface enables a use of an aqueous coating agent or aqueous ink which currently has poor adhesion, and does not use a material like organic solvents or heavy metals so as to be environmentally-friendly.