| YANG Ming-liang,WU Jian-hua,LI Zhi-qin,SU Ya-li,FANG Da-qing,ZHENG Tian-shui.Synthesis and Inhibition Mechanism of Mussel-inspired Adhesive Polymers in Waterborne Coatings on Carbon Steel[J],47(8):211-219 |
| Synthesis and Inhibition Mechanism of Mussel-inspired Adhesive Polymers in Waterborne Coatings on Carbon Steel |
| Received:April 16, 2018 Revised:August 20, 2018 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2018.08.029 |
| KeyWord:PHEA-DOPA adhesive polymer synthesis inhibitor waterborne epoxy coating |
| Author | Institution |
| YANG Ming-liang |
1.School of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin , China; 3.Xiamen Sunrui Ship Coating Co., Ltd, Xiamen , China |
| WU Jian-hua |
1.School of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin , China; 2.State Key Laboratory for marine Corrosion and Protection, Qingdao , China; 3.Xiamen Sunrui Ship Coating Co., Ltd, Xiamen , China |
| LI Zhi-qin |
3.Xiamen Sunrui Ship Coating Co., Ltd, Xiamen , China |
| SU Ya-li |
3.Xiamen Sunrui Ship Coating Co., Ltd, Xiamen , China |
| FANG Da-qing |
3.Xiamen Sunrui Ship Coating Co., Ltd, Xiamen , China |
| ZHENG Tian-shui |
3.Xiamen Sunrui Ship Coating Co., Ltd, Xiamen , China |
|
| Hits: |
| Download times: |
| Abstract: |
| The work aims to study corrosion prevention mechanism of synthesized waterborne PHEA-DOPA containing dopamine pendant functional groups in waterborne epoxy anticorrosive coatings. A PHEA-DOPA adhesive polymer was successfully prepared based upon continuous aminolysis reactions among polysuccinimide, ethanolamine and dopamine. Structure of this adhesive polymer was characterized by FTIR, 1HNMR and UV-Vis spectrophotometer. Furthermore, protective properties and mechanism of the waterborne epoxy coating containing PHEA-DOPA were investigated by EIS, scanning electron microscope (SEM), quartz crystal microbalance with dissipation monitoring (QCM-D) and Raman microspectroscopy. The results of FTIR, 1HNMR and UV-Vis measurements demonstrated that the PHEA-DOPA polymer was successfully synthesized. The EIS and SEM results indicated that the addition of PHEA-DOPA could significantly improve protection properties of waterborne epoxy coatings. The evidences of QCM-D and Raman microspectroscopy demonstrated that the DOPA group in PHEA-DOPA structure had strong adsorptive complex effects on Fe3+, and could generate in soluble [Fe(DOPA)3]3+ complexes on the surface of carbon steel and inside the coatings, which inhibited dissolution process of Fe and improved coating density. Addition of PHEA-DOPA adhesive polymer can significantly improve protective properties of waterborne coatings. |
| Close |
|
|
|