| 摘要 |
PURPOSE: An anti-corrosion coating composition and a manufacturing method thereof are provided to use the composition for coating a galvanized steel pipe, and to secure the alkali resistance and the water resistance. CONSTITUTION: A manufacturing method of an anti-corrosion coating composition comprises the following steps: preparing a silane-modified water-soluble acrylic resin with the acid value of 35~60 mgKOH/g, and the weight average molecular weight of 15,000~30,000; producing an organic-inorganic silica composite resin by an organic-inorganic complexation reaction, of a water-soluble acrylic resin, water-dispersible colloidal silica, and a silane coupling agent; and mixing 20~50wt% of silane-modified water-soluble acrylic resin, 5~25wt% of organic-inorganic silica composite resin, 10~30wt% of water-soluble organic solvent, and 30~60wt% of water. |
