Effect of pyrogallol compounds dosage on mechanical properties of epoxy coating
Anticorrosive coatings are considered to be one of the most economical and effective means of protection. The adhesion of the coating is defined as the strength of the interfacial bond between the coating and the substrate, which directly determines the protective life of the coating. In this work,...
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| Format: | Article |
| Language: | English |
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De Gruyter
2025-05-01
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| Series: | e-Polymers |
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| Online Access: | https://doi.org/10.1515/epoly-2024-0108 |
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| author | Huang Weitao Yao Yong Deng Jiayi Liu Yuqi Guo Minlong Huang Congshu Liang Yu Mo Yeqiang |
| author_facet | Huang Weitao Yao Yong Deng Jiayi Liu Yuqi Guo Minlong Huang Congshu Liang Yu Mo Yeqiang |
| author_sort | Huang Weitao |
| collection | DOAJ |
| description | Anticorrosive coatings are considered to be one of the most economical and effective means of protection. The adhesion of the coating is defined as the strength of the interfacial bond between the coating and the substrate, which directly determines the protective life of the coating. In this work, the epoxy–(5-{5-[2-(3,4,5-trihydroxyphenyl)-1H-1,3-benzodiazol-6-yl]-1H-1,3-benzodiazol-2-yl}benz-1,2,3-triol} (EP-BIB) composite coating was obtained by adding different mass fractions of BIB to the EP coating. The effect of mass fraction of BIB on the mechanical properties of composite coating were studied by Elongation at break, tensile shear strength, as well as Peel strength. The results showed that the mechanical properties of composite coating could be improved by adding an appropriate amount of BIB. The elongation at break, tensile shear strength, and peel strength of composite coating became better initially and then worse with the increase in BIB content in the composite coating. The composite coating with 0.9% (mass fraction) BIB had the elongation at break of 10.37 ± 0.53%, an optimal shear strength of 12.51 ± 0.48 MPa, and a maximum peel strength of 4.78 ± 0.54 N·mm−1. |
| format | Article |
| id | doaj-art-b51fc119e5ba434598cf7a8ad09a391c |
| institution | DOAJ |
| issn | 1618-7229 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | e-Polymers |
| spelling | doaj-art-b51fc119e5ba434598cf7a8ad09a391c2025-08-20T03:07:58ZengDe Gruytere-Polymers1618-72292025-05-012519913433710.1515/epoly-2024-0108Effect of pyrogallol compounds dosage on mechanical properties of epoxy coatingHuang Weitao0Yao Yong1Deng Jiayi2Liu Yuqi3Guo Minlong4Huang Congshu5Liang Yu6Mo Yeqiang7Guangdong Energy Group Science and Technology Research Institute Co., Ltd., Guangzhou, 510630, ChinaGuangdong Energy Group Science and Technology Research Institute Co., Ltd., Guangzhou, 510630, ChinaGuangdong Energy Group Science and Technology Research Institute Co., Ltd., Guangzhou, 510630, ChinaGuangdong Energy Group Science and Technology Research Institute Co., Ltd., Guangzhou, 510630, ChinaGuangdong Provincial Academy of Building Research Group Co. Ltd., Guangzhou, 510500, ChinaNational Key Laboratory of Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Xiamen, 361101, ChinaNational Key Laboratory of Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Xiamen, 361101, ChinaGuangdong Provincial Academy of Building Research Group Co. Ltd., Guangzhou, 510500, ChinaAnticorrosive coatings are considered to be one of the most economical and effective means of protection. The adhesion of the coating is defined as the strength of the interfacial bond between the coating and the substrate, which directly determines the protective life of the coating. In this work, the epoxy–(5-{5-[2-(3,4,5-trihydroxyphenyl)-1H-1,3-benzodiazol-6-yl]-1H-1,3-benzodiazol-2-yl}benz-1,2,3-triol} (EP-BIB) composite coating was obtained by adding different mass fractions of BIB to the EP coating. The effect of mass fraction of BIB on the mechanical properties of composite coating were studied by Elongation at break, tensile shear strength, as well as Peel strength. The results showed that the mechanical properties of composite coating could be improved by adding an appropriate amount of BIB. The elongation at break, tensile shear strength, and peel strength of composite coating became better initially and then worse with the increase in BIB content in the composite coating. The composite coating with 0.9% (mass fraction) BIB had the elongation at break of 10.37 ± 0.53%, an optimal shear strength of 12.51 ± 0.48 MPa, and a maximum peel strength of 4.78 ± 0.54 N·mm−1.https://doi.org/10.1515/epoly-2024-0108marine engineeringepoxy coatingpyrogallol compoundsmechanical propertiesadhesion |
| spellingShingle | Huang Weitao Yao Yong Deng Jiayi Liu Yuqi Guo Minlong Huang Congshu Liang Yu Mo Yeqiang Effect of pyrogallol compounds dosage on mechanical properties of epoxy coating e-Polymers marine engineering epoxy coating pyrogallol compounds mechanical properties adhesion |
| title | Effect of pyrogallol compounds dosage on mechanical properties of epoxy coating |
| title_full | Effect of pyrogallol compounds dosage on mechanical properties of epoxy coating |
| title_fullStr | Effect of pyrogallol compounds dosage on mechanical properties of epoxy coating |
| title_full_unstemmed | Effect of pyrogallol compounds dosage on mechanical properties of epoxy coating |
| title_short | Effect of pyrogallol compounds dosage on mechanical properties of epoxy coating |
| title_sort | effect of pyrogallol compounds dosage on mechanical properties of epoxy coating |
| topic | marine engineering epoxy coating pyrogallol compounds mechanical properties adhesion |
| url | https://doi.org/10.1515/epoly-2024-0108 |
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