Improved anti-corrosion performance of epoxy coatings based on pH-sensitive gels loaded with inhibitors
The pH-sensitive Tannic acid@ Benzotriazole@ Poly (hydroxypropyl acrylate-triethoxyvinylsilane -acrylic acid)/polyethyl enimide (TBP) gels loaded with corrosion inhibitors and the modified TBP composite coatings (TBP/EP coatings) were prepared innovatively. The TBP gels possessed excellent pH-sensit...
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Elsevier
2025-01-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424029636 |
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| author | Bo Fang Xinyue Zhang Hongliang Liu Fangchao Zhao Yuzhu Li Xiaotong Zeng Zhenliang Feng Wenzuo Li Jie Liu |
| author_facet | Bo Fang Xinyue Zhang Hongliang Liu Fangchao Zhao Yuzhu Li Xiaotong Zeng Zhenliang Feng Wenzuo Li Jie Liu |
| author_sort | Bo Fang |
| collection | DOAJ |
| description | The pH-sensitive Tannic acid@ Benzotriazole@ Poly (hydroxypropyl acrylate-triethoxyvinylsilane -acrylic acid)/polyethyl enimide (TBP) gels loaded with corrosion inhibitors and the modified TBP composite coatings (TBP/EP coatings) were prepared innovatively. The TBP gels possessed excellent pH-sensitive properties and compatibility with epoxy coatings. Furthermore, the protective performance of the TBP/EP coatings was improved by the addition of TBP gels, which was attributed to the TBP gels filling the defects of the coatings after expansion of water absorption, and the released corrosion inhibitors formed the corrosion inhibitor films and the iron tannate films on the metal surface, respectively. Following the 181d immersion test, the TBP/EP coatings sustained an impedance value of 2.36 × 107 Ω cm2. In contrast, the impedance value of the epoxy coatings decreased to 6.86 × 104 Ω cm2. In comparison to epoxy coatings, the TBP/EP coatings demonstrated a notable enhancement in original adhesion and wet adhesion, with increases of 18.21% and 74.7%, respectively. In the end, the TBP/EP coatings corrosion inhibition functions were innovatively introduced. |
| format | Article |
| id | doaj-art-87551d72c1ad443bbd97f13e57624920 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-87551d72c1ad443bbd97f13e576249202025-01-19T06:25:40ZengElsevierJournal of Materials Research and Technology2238-78542025-01-013416821690Improved anti-corrosion performance of epoxy coatings based on pH-sensitive gels loaded with inhibitorsBo Fang0Xinyue Zhang1Hongliang Liu2Fangchao Zhao3Yuzhu Li4Xiaotong Zeng5Zhenliang Feng6Wenzuo Li7Jie Liu8School of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, PR ChinaSchool of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, PR ChinaSchool of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, PR China; Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing, Yantai, 264006, PR ChinaSouthwest Technology and Engineering Research Institute, Chongqing, 400039, PR ChinaSchool of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, PR ChinaSchool of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, PR ChinaSchool of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, PR ChinaSchool of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, PR China; Corresponding author.School of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, PR China; Corresponding author.The pH-sensitive Tannic acid@ Benzotriazole@ Poly (hydroxypropyl acrylate-triethoxyvinylsilane -acrylic acid)/polyethyl enimide (TBP) gels loaded with corrosion inhibitors and the modified TBP composite coatings (TBP/EP coatings) were prepared innovatively. The TBP gels possessed excellent pH-sensitive properties and compatibility with epoxy coatings. Furthermore, the protective performance of the TBP/EP coatings was improved by the addition of TBP gels, which was attributed to the TBP gels filling the defects of the coatings after expansion of water absorption, and the released corrosion inhibitors formed the corrosion inhibitor films and the iron tannate films on the metal surface, respectively. Following the 181d immersion test, the TBP/EP coatings sustained an impedance value of 2.36 × 107 Ω cm2. In contrast, the impedance value of the epoxy coatings decreased to 6.86 × 104 Ω cm2. In comparison to epoxy coatings, the TBP/EP coatings demonstrated a notable enhancement in original adhesion and wet adhesion, with increases of 18.21% and 74.7%, respectively. In the end, the TBP/EP coatings corrosion inhibition functions were innovatively introduced.http://www.sciencedirect.com/science/article/pii/S2238785424029636GelsEpoxy coatingsBenzotriazoleTannic acidProtective performance |
| spellingShingle | Bo Fang Xinyue Zhang Hongliang Liu Fangchao Zhao Yuzhu Li Xiaotong Zeng Zhenliang Feng Wenzuo Li Jie Liu Improved anti-corrosion performance of epoxy coatings based on pH-sensitive gels loaded with inhibitors Journal of Materials Research and Technology Gels Epoxy coatings Benzotriazole Tannic acid Protective performance |
| title | Improved anti-corrosion performance of epoxy coatings based on pH-sensitive gels loaded with inhibitors |
| title_full | Improved anti-corrosion performance of epoxy coatings based on pH-sensitive gels loaded with inhibitors |
| title_fullStr | Improved anti-corrosion performance of epoxy coatings based on pH-sensitive gels loaded with inhibitors |
| title_full_unstemmed | Improved anti-corrosion performance of epoxy coatings based on pH-sensitive gels loaded with inhibitors |
| title_short | Improved anti-corrosion performance of epoxy coatings based on pH-sensitive gels loaded with inhibitors |
| title_sort | improved anti corrosion performance of epoxy coatings based on ph sensitive gels loaded with inhibitors |
| topic | Gels Epoxy coatings Benzotriazole Tannic acid Protective performance |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424029636 |
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