▎ 摘　　要

NOVELTY - A microcapsule contains wall material and core material. The wall material is graphene oxide. The core material is organic corrosion inhibitor. USE - Microcapsule (claimed). ADVANTAGE - The microcapsule has excellent slow-release properties, does not contain additive, and can be prepared with high quality in simple and economical manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of microcapsule, which involves adding organic corrosion inhibitor to distilled water and then uniformly mixing, stirring the mixture for 20-30 minutes, adding graphene oxide to the mixture and then stirring for 30-60 minutes, ultrasonically processing the mixture for 2-3 hours and then hydrothermally processing at 80-200 degrees C for 8-24 hours, and freeze-drying.