Yinjie Xu , Yulin Xue , Hongjuan Li , Bangjie Meng , Yingjun Liu , Liang Li , Wangru Wei , Haibo Wang , Shihua Dong
{"title":"一石三鸟:疏水,自修复和抗紫外线聚氨酯复合涂料FPANI@CeO2防腐应用","authors":"Yinjie Xu , Yulin Xue , Hongjuan Li , Bangjie Meng , Yingjun Liu , Liang Li , Wangru Wei , Haibo Wang , Shihua Dong","doi":"10.1016/j.compositesa.2025.109236","DOIUrl":null,"url":null,"abstract":"<div><div>In practical applications, the UV resistance of polyurethane coatings is extremely important in addition to the corrosion protection. Fluorinated polyaniline (FPANI) was generated in situ on the surface of F-d@CeO<sub>2</sub> in an acidic environment using phytic acid (PA) as a dopant, and FT-IR, Raman, TG, XRD, and XPS tests showed that the fluorinated polyaniline was chemically bonded to polydopamine. Anti-corrosion experiments showed that the composite coating (PFC5) with the best anti-corrosion properties was when the filler content (FPANI<sub>PA</sub>/F-d@CeO<sub>2</sub>) was 5 wt%. The |Z|0.01 Hz of the PFC5 composite coating remained above 10<sup>8</sup> Ω·cm<sup>2</sup> after 120 d of immersion. Cerium oxide, on the other hand, has the ability to absorb and protect from UV light, and fluorinated polyaniline and polydopamine’s free radical scavenging capabilities can trap the free radicals generated by UV-aging polyurethane and inhibit or block the photo-oxidation reaction of the coating. Therefore, the PFC5 composite coating shows excellent UV resistance, with the lowest photo-oxidation index and carbonyl index after UV aging for 300 h, and maintains excellent corrosion resistance and mechanical properties. At the same time, the tests of POM, EIS and mechanical properties show that the PFC5 composite coating exhibits excellent photothermal self-healing performance, and the coating still maintains good mechanical properties as well as anticorrosion properties before and after self-healing, with a self-healing efficiency of more than 90 %.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"199 ","pages":"Article 109236"},"PeriodicalIF":8.1000,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"One stone three birds: hydrophobic, self-healing and UV-resistant polyurethane composite coating based on FPANI@CeO2 for anti-corrosion applications\",\"authors\":\"Yinjie Xu , Yulin Xue , Hongjuan Li , Bangjie Meng , Yingjun Liu , Liang Li , Wangru Wei , Haibo Wang , Shihua Dong\",\"doi\":\"10.1016/j.compositesa.2025.109236\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>In practical applications, the UV resistance of polyurethane coatings is extremely important in addition to the corrosion protection. Fluorinated polyaniline (FPANI) was generated in situ on the surface of F-d@CeO<sub>2</sub> in an acidic environment using phytic acid (PA) as a dopant, and FT-IR, Raman, TG, XRD, and XPS tests showed that the fluorinated polyaniline was chemically bonded to polydopamine. Anti-corrosion experiments showed that the composite coating (PFC5) with the best anti-corrosion properties was when the filler content (FPANI<sub>PA</sub>/F-d@CeO<sub>2</sub>) was 5 wt%. The |Z|0.01 Hz of the PFC5 composite coating remained above 10<sup>8</sup> Ω·cm<sup>2</sup> after 120 d of immersion. Cerium oxide, on the other hand, has the ability to absorb and protect from UV light, and fluorinated polyaniline and polydopamine’s free radical scavenging capabilities can trap the free radicals generated by UV-aging polyurethane and inhibit or block the photo-oxidation reaction of the coating. Therefore, the PFC5 composite coating shows excellent UV resistance, with the lowest photo-oxidation index and carbonyl index after UV aging for 300 h, and maintains excellent corrosion resistance and mechanical properties. At the same time, the tests of POM, EIS and mechanical properties show that the PFC5 composite coating exhibits excellent photothermal self-healing performance, and the coating still maintains good mechanical properties as well as anticorrosion properties before and after self-healing, with a self-healing efficiency of more than 90 %.</div></div>\",\"PeriodicalId\":282,\"journal\":{\"name\":\"Composites Part A: Applied Science and Manufacturing\",\"volume\":\"199 \",\"pages\":\"Article 109236\"},\"PeriodicalIF\":8.1000,\"publicationDate\":\"2025-08-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Composites Part A: Applied Science and Manufacturing\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1359835X25005305\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, MANUFACTURING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Composites Part A: Applied Science and Manufacturing","FirstCategoryId":"1","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1359835X25005305","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MANUFACTURING","Score":null,"Total":0}
One stone three birds: hydrophobic, self-healing and UV-resistant polyurethane composite coating based on FPANI@CeO2 for anti-corrosion applications
In practical applications, the UV resistance of polyurethane coatings is extremely important in addition to the corrosion protection. Fluorinated polyaniline (FPANI) was generated in situ on the surface of F-d@CeO2 in an acidic environment using phytic acid (PA) as a dopant, and FT-IR, Raman, TG, XRD, and XPS tests showed that the fluorinated polyaniline was chemically bonded to polydopamine. Anti-corrosion experiments showed that the composite coating (PFC5) with the best anti-corrosion properties was when the filler content (FPANIPA/F-d@CeO2) was 5 wt%. The |Z|0.01 Hz of the PFC5 composite coating remained above 108 Ω·cm2 after 120 d of immersion. Cerium oxide, on the other hand, has the ability to absorb and protect from UV light, and fluorinated polyaniline and polydopamine’s free radical scavenging capabilities can trap the free radicals generated by UV-aging polyurethane and inhibit or block the photo-oxidation reaction of the coating. Therefore, the PFC5 composite coating shows excellent UV resistance, with the lowest photo-oxidation index and carbonyl index after UV aging for 300 h, and maintains excellent corrosion resistance and mechanical properties. At the same time, the tests of POM, EIS and mechanical properties show that the PFC5 composite coating exhibits excellent photothermal self-healing performance, and the coating still maintains good mechanical properties as well as anticorrosion properties before and after self-healing, with a self-healing efficiency of more than 90 %.
期刊介绍:
Composites Part A: Applied Science and Manufacturing is a comprehensive journal that publishes original research papers, review articles, case studies, short communications, and letters covering various aspects of composite materials science and technology. This includes fibrous and particulate reinforcements in polymeric, metallic, and ceramic matrices, as well as 'natural' composites like wood and biological materials. The journal addresses topics such as properties, design, and manufacture of reinforcing fibers and particles, novel architectures and concepts, multifunctional composites, advancements in fabrication and processing, manufacturing science, process modeling, experimental mechanics, microstructural characterization, interfaces, prediction and measurement of mechanical, physical, and chemical behavior, and performance in service. Additionally, articles on economic and commercial aspects, design, and case studies are welcomed. All submissions undergo rigorous peer review to ensure they contribute significantly and innovatively, maintaining high standards for content and presentation. The editorial team aims to expedite the review process for prompt publication.