A new generation smart self-healing coating possessing both passive matrix functionality and rapid response to local changes in the environment is of great industrial importance. In the present work, a stimulus responsive smart self -healing anticorrosion coating was developed based on acrylic resin, incorporated with Dendrimer like Mesoporous Silica Nanoparticles (DMSN) loaded inside with 8-hydroxyquinoline inhibitor. FESEM and TEM analysis showed that the dendrimer like mesoporous silica (DMS) nanoparticles synthesized were of spherical and fibrous form with size less than 200 nm. The BET surface area, pore volume and average pore diameter of the nanoparticles were found to be 1322.4 m² g⁻¹, 1.39 cc/g and 4.2 nm respectively. The corrosion protection performance of the coatings was evaluated via Electrochemical Impedance Spectroscopy (EIS) in 3.5 % NaCl. The acrylic coating with dendrimer like silica nano containers showed improved and long-term corrosion protection than the coating without nano containers. The smart self-healing property of the coating was studied by Scanning Vibrating Electrode Technique (SVET). The SVET showed a smartness activity of DMSN by release of inhibitor triggered by corrosion phenomena in the defect area. Further, to reassert the smartness of the coating, impedance mapping of the surface was carried out at a fixed frequency.

具有被动基质功能和对环境局部变化的快速响应的新一代智能自修复涂料在工业上具有重要意义。在目前的工作中，开发了一种基于丙烯酸树脂的刺激响应型智能自修复防腐涂料，该涂料与内部负载有8-羟基喹啉抑制剂的树枝状聚合物（如中孔二氧化硅纳米颗粒（DMSN））结合使用。FESEM和TEM分析表明，合成的树状大分子状中孔二氧化硅（DMS）纳米颗粒呈球形和纤维状，尺寸小于200 nm。发现纳米颗粒的BET表面积，孔体积和平均孔径为1322.4m ² g ^-1分别为1.39 cc / g和4.2 nm。通过电化学阻抗谱（EIS）在3.5％NaCl中评估涂层的防腐性能。与没有纳米容器的涂料相比，具有树枝状聚合物的丙烯酸涂料（如二氧化硅纳米容器）显示出改善的长期腐蚀防护性能。通过扫描振动电极技术（SVET）研究了涂层的智能自修复性能。通过缺陷区域腐蚀现象触发的抑制剂释放，SVET表现出DMSN的智能活性。此外，为了重申涂层的智能性，以固定频率对表面进行阻抗映射。