Research progress of microcapsule self-healing anticorrosive coatings

Abstract During the long-term use of coating, environmental factors, physical damage or other factors may cause micro-cracks in coating. The expansion microcracks will destroy overall structure reduce protective effect coating and degrade its mechanical properties. However, traditional repair methods need to consume a lot manpower material resources, are difficult be repaired by external means. Inspired biological systems, intelligent coatings with certain self-healing ability have attracted wide attention academia industry. According different remediation agents used micro capsules, several common systems capsules were analyzed, including corrosion inhibitor system, capsule drying oil reactive agent etc.