Mingjun Zhang
Research Subjects
Mingjun Zhang has a total of 5 co-authors. Here are the top co-authors by number of shared publications:
- Beiyao Zhang1 shared publication
- Haiyan Li
College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, China
1 shared publication - Jiaying Jin1 shared publication
- Jinsong Rao
College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
1 shared publication - Shupei Liu
College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
1 shared publication
Latest Publications
- Open Access
- 25 December 2023
- Published by MDPI AG in Preprints.org
Preparation of pH-Responsive BTA@DME/PDA Microcapsules and Their Application in Anti-corrosion Coatings
Diatomite (DME) consists of natural ordered porous structures that are excellent candidates as microcontainers. However, to the best of our knowledge, the application of DME loaded with corrosion inhibitors in anti-corrosion coatings has not hitherto been reported. In this study, DME has been used as a source of microcontainers to load benzotriazole (BTA) inhibitor by an immersion method. In order to prevent unwanted early release of the small molecule BTA inhibitor from the DME microcontainers, inspired by the adhesion characteristics of catechol and amine in mussel adhesion protein, polydopamine (PDA) was coated on their surfaces to generate BTA@DME/PDA microcapsules. Because of the depolymerization characteristics of PDA at low pH, the synthesize microcapsules showed a controllable release function. The SEM morphology, chemical structure, and loading capacity of the synthesized BTA@DME/PDA microcapsules were characterized. The corrosion resistances of epoxy coatings with different contents of BTA@DME/PDA microcapsules were compared by saline immersion and electrochemical impedance tests. A scratched coating with 5wt.% BTA@DME/PDA microcapsules showed the best anti-corrosion effect.
- 25 December 2023
- Published by MDPI AG in Preprints.org
Open AccessPreparation of pH-Responsive BTA@DME/PDA Microcapsules and Their Application in Anti-corrosion Coatings
Diatomite (DME) consists of natural ordered porous structures that are excellent candidates as microcontainers. However, to the best of our knowledge, the application of DME loaded with corrosion inhibitors in anti-corrosion coatings has not hitherto been reported. In this study, DME has been used as a source of microcontainers to load benzotriazole (BTA) inhibitor by an immersion method. In order to prevent unwanted early release of the small molecule BTA inhibitor from the DME microcontainers, inspired by the adhesion characteristics of catechol and amine in mussel adhesion protein, polydopamine (PDA) was coated on their surfaces to generate BTA@DME/PDA microcapsules. Because of the depolymerization characteristics of PDA at low pH, the synthesize microcapsules showed a controllable release function. The SEM morphology, chemical structure, and loading capacity of the synthesized BTA@DME/PDA microcapsules were characterized. The corrosion resistances of epoxy coatings with different contents of BTA@DME/PDA microcapsules were compared by saline immersion and electrochemical impedance tests. A scratched coating with 5wt.% BTA@DME/PDA microcapsules showed the best anti-corrosion effect.