Organic Corrosion Inhibitor-Embedded Polymer Capsule, Preparation Method Thereof, Composition Containing Same, and Surface Treated Steel Sheet Using Same

摘要

Provided are a polymer capsule in which an organic corrosion inhibitor is encapsulated, a method of preparing the same, a composition having the same, and a steel sheet whose surface is treated using the same. The polymer capsule prepared to include a core layer polymer having a hydrophilic acid group and at least one shell layer surrounding the core layer through continuous emulsion polymerization may have an organic corrosion inhibitor effectively encapsulated. The corrosion inhibitor may be released from the capsule in a corrosive environment, thereby enhancing corrosion resistance of the steel sheet.