An active protection coating for pH-responsive was prepared.The hollow mesoporous silica microspheres(HMSNs)were loaded with 2-mercaptobenzothiazole(MBT),and then they were coated with chitosan(CS).The composite micro...An active protection coating for pH-responsive was prepared.The hollow mesoporous silica microspheres(HMSNs)were loaded with 2-mercaptobenzothiazole(MBT),and then they were coated with chitosan(CS).The composite microspheres were in the range of 650−750 nm in diameter.CS-HMSN-MBT coating had a faster repair rate under acidic conditions by synergistic effect between CS and MBT.The repair rate under alkaline conditions was slowed down.The active protection performance reached the strongest after 3 d immersion.The corrosion inhibitor release mechanism was optimized to extend the service life of the coating and to achieve long-term service of the copper substrate.展开更多
基金Project(2023YFC2907304)supported by the National Key R&D Program Projects,ChinaProject(ZR2021ME087)supported by the Natural Science Foundation of Shandong Province,China+1 种基金Project(2022KLMM305)supported by the Shandong Provincial Key Laboratory of Mining Machinery Engineering School Enterprise Joint Fund,ChinaProject(2023CXPT062)supported by the Shandong Key Research and Development Program(Competitive Innovation Platform),China。
文摘An active protection coating for pH-responsive was prepared.The hollow mesoporous silica microspheres(HMSNs)were loaded with 2-mercaptobenzothiazole(MBT),and then they were coated with chitosan(CS).The composite microspheres were in the range of 650−750 nm in diameter.CS-HMSN-MBT coating had a faster repair rate under acidic conditions by synergistic effect between CS and MBT.The repair rate under alkaline conditions was slowed down.The active protection performance reached the strongest after 3 d immersion.The corrosion inhibitor release mechanism was optimized to extend the service life of the coating and to achieve long-term service of the copper substrate.
