Shaoheng Yang , Haohao Hu , Zhengbang Tong , Haojun Lin , Zhuangzhuang Chu , Yang Hu , Zhuohong Yang
{"title":"基于二氧化硅改性氧化石墨烯的双层结构超疏水涂层:稳定性强,耐候性好,耐腐蚀","authors":"Shaoheng Yang , Haohao Hu , Zhengbang Tong , Haojun Lin , Zhuangzhuang Chu , Yang Hu , Zhuohong Yang","doi":"10.1016/j.porgcoat.2025.109668","DOIUrl":null,"url":null,"abstract":"<div><div>The polymer coatings prepared with bisphenol A-type vinyl ester resin (VER) have gained wide attention for protecting metal substrates from corrosive media. However, it is a clear challenge to realize superhydrophobic performance, mechanical stability, weather resistance and lasting-long anti-corrosion performances at the same time in a VER polymer coating. In this work, we have successfully prepared the double-layer superhydrophobic (PF@GO-SiO<sub>2</sub>/VER) composite coating film with the imitated lotus-leaf-like surface structures. And the primer consists of silica nanoparticles-modified graphene oxide (GO-SiO<sub>2</sub>) and VER, and the topcoat is comprised by perfluorosilane coupling agent, GO-SiO<sub>2</sub> and epoxy resin. By optimizing the pre-cured temperature of the primer layer, the oxygen inhibition effect of the coating is achieved to enhance the adhesion of the hydrophobic topcoat layer. The PF@GO-SiO<sub>2</sub>/VER coating exhibited superhydrophobic properties with the water contact angle of 155.9° and sliding angle of 1.7°. In addition, the results of scratch damage, tape peeling, sand impact, outdoor aging resistance, UV damage, and acid-alkali resistance tests display that the PF@GO-SiO<sub>2</sub>/VER coating owns the favorite mechanical and chemical stability. Furthermore, the results of electrolytic cell damage and long-term electrochemical impedance assays show that after soaking in 3.5 wt% NaCl solution for 80 days, the PF@GO-SiO<sub>2</sub>/VER coating displayed excellent anti-corrosion performance. In summary, due to its excellent hydrophobicity, mechanical stability, weather resistance, and anti-corrosion performance, this superhydrophobic coating research demonstrates the potential of long-lasting protection in marine environments.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"210 ","pages":"Article 109668"},"PeriodicalIF":7.3000,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Double-layer structure superhydrophobic coatings based on silica-modified graphene oxide: Robust stability, weather resistance, and anti-corrosion\",\"authors\":\"Shaoheng Yang , Haohao Hu , Zhengbang Tong , Haojun Lin , Zhuangzhuang Chu , Yang Hu , Zhuohong Yang\",\"doi\":\"10.1016/j.porgcoat.2025.109668\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The polymer coatings prepared with bisphenol A-type vinyl ester resin (VER) have gained wide attention for protecting metal substrates from corrosive media. However, it is a clear challenge to realize superhydrophobic performance, mechanical stability, weather resistance and lasting-long anti-corrosion performances at the same time in a VER polymer coating. In this work, we have successfully prepared the double-layer superhydrophobic (PF@GO-SiO<sub>2</sub>/VER) composite coating film with the imitated lotus-leaf-like surface structures. And the primer consists of silica nanoparticles-modified graphene oxide (GO-SiO<sub>2</sub>) and VER, and the topcoat is comprised by perfluorosilane coupling agent, GO-SiO<sub>2</sub> and epoxy resin. By optimizing the pre-cured temperature of the primer layer, the oxygen inhibition effect of the coating is achieved to enhance the adhesion of the hydrophobic topcoat layer. The PF@GO-SiO<sub>2</sub>/VER coating exhibited superhydrophobic properties with the water contact angle of 155.9° and sliding angle of 1.7°. In addition, the results of scratch damage, tape peeling, sand impact, outdoor aging resistance, UV damage, and acid-alkali resistance tests display that the PF@GO-SiO<sub>2</sub>/VER coating owns the favorite mechanical and chemical stability. Furthermore, the results of electrolytic cell damage and long-term electrochemical impedance assays show that after soaking in 3.5 wt% NaCl solution for 80 days, the PF@GO-SiO<sub>2</sub>/VER coating displayed excellent anti-corrosion performance. In summary, due to its excellent hydrophobicity, mechanical stability, weather resistance, and anti-corrosion performance, this superhydrophobic coating research demonstrates the potential of long-lasting protection in marine environments.</div></div>\",\"PeriodicalId\":20834,\"journal\":{\"name\":\"Progress in Organic Coatings\",\"volume\":\"210 \",\"pages\":\"Article 109668\"},\"PeriodicalIF\":7.3000,\"publicationDate\":\"2025-09-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Progress in Organic Coatings\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0300944025006174\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress in Organic Coatings","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0300944025006174","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
Double-layer structure superhydrophobic coatings based on silica-modified graphene oxide: Robust stability, weather resistance, and anti-corrosion
The polymer coatings prepared with bisphenol A-type vinyl ester resin (VER) have gained wide attention for protecting metal substrates from corrosive media. However, it is a clear challenge to realize superhydrophobic performance, mechanical stability, weather resistance and lasting-long anti-corrosion performances at the same time in a VER polymer coating. In this work, we have successfully prepared the double-layer superhydrophobic (PF@GO-SiO2/VER) composite coating film with the imitated lotus-leaf-like surface structures. And the primer consists of silica nanoparticles-modified graphene oxide (GO-SiO2) and VER, and the topcoat is comprised by perfluorosilane coupling agent, GO-SiO2 and epoxy resin. By optimizing the pre-cured temperature of the primer layer, the oxygen inhibition effect of the coating is achieved to enhance the adhesion of the hydrophobic topcoat layer. The PF@GO-SiO2/VER coating exhibited superhydrophobic properties with the water contact angle of 155.9° and sliding angle of 1.7°. In addition, the results of scratch damage, tape peeling, sand impact, outdoor aging resistance, UV damage, and acid-alkali resistance tests display that the PF@GO-SiO2/VER coating owns the favorite mechanical and chemical stability. Furthermore, the results of electrolytic cell damage and long-term electrochemical impedance assays show that after soaking in 3.5 wt% NaCl solution for 80 days, the PF@GO-SiO2/VER coating displayed excellent anti-corrosion performance. In summary, due to its excellent hydrophobicity, mechanical stability, weather resistance, and anti-corrosion performance, this superhydrophobic coating research demonstrates the potential of long-lasting protection in marine environments.
期刊介绍:
The aim of this international journal is to analyse and publicise the progress and current state of knowledge in the field of organic coatings and related materials. The Editors and the Editorial Board members will solicit both review and research papers from academic and industrial scientists who are actively engaged in research and development or, in the case of review papers, have extensive experience in the subject to be reviewed. Unsolicited manuscripts will be accepted if they meet the journal''s requirements. The journal publishes papers dealing with such subjects as:
• Chemical, physical and technological properties of organic coatings and related materials
• Problems and methods of preparation, manufacture and application of these materials
• Performance, testing and analysis.