Self-Protecting Epoxy Coatings with Anticorrosion Microcapsules
| العنوان: | Self-Protecting Epoxy Coatings with Anticorrosion Microcapsules |
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| المؤلفون: | Nancy R. Sottos, Sai P. Venkateswaran, Michael T. Odarczenko, Ke Yang, Scott R. White, Dhawal R. Thakare, Wenle Li, Shijia Tang |
| المصدر: | ACS Omega ACS Omega, Vol 3, Iss 10, Pp 14157-14164 (2018) |
| بيانات النشر: | American Chemical Society (ACS), 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Materials science, General Chemical Engineering, 02 engineering and technology, General Chemistry, Epoxy, 010402 general chemistry, 021001 nanoscience & nanotechnology, Electrochemistry, 01 natural sciences, Environmentally friendly, Article, 0104 chemical sciences, Lawsone, Corrosion, lcsh:Chemistry, chemistry.chemical_compound, lcsh:QD1-999, chemistry, Chemical engineering, visual_art, Salt water, visual_art.visual_art_medium, 0210 nano-technology, Polyurethane |
| الوصف: | The corrosion of steel substrates causes damage that is costly to repair or replace. Current protective coatings predominately rely on environmentally harmful anticorrosive agents and toxic solvents to protect the underlying substrate. The use of lawsone (2-hydroxy-1,4-napthoquinone) together with a water-based epoxy coating provides an environmentally friendly alternative for common protective coatings. Microencapsulated lawsone embedded in an epoxy coating allows the anticorrosive agent to remain dormant until released by damage and delivered directly onto the steel substrate. UV–vis analysis confirms successful encapsulation of lawsone in a polyurethane shell wall and reveals up to 8 wt % lawsone in the capsule cores. Uniform dry film thickness and inflicted damaged are verified with ultrasound and optical microscopy. Visual and electrochemical analysis demonstrates that this self-protective scheme leads to a 70% corrosion inhibition efficiency in a neutral salt water solution. |
| تدمد: | 2470-1343 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ea762495d9ada763fbe6967f8ccc333 https://doi.org/10.1021/acsomega.8b01950 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....1ea762495d9ada763fbe6967f8ccc333 |
| قاعدة البيانات: | OpenAIRE |
Find this issue from the American Chemical Society | تدمد: | 24701343 |
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