Progress in Organic Coatings最新文献

{"title":"Dynamic boron-carbamate bonds cross-link polyurea elastomers with enhanced impact-resistant properties","authors":"Sibo Wang ,&nbsp;Rongrong Chen ,&nbsp;Peili Liu ,&nbsp;Jing Yu ,&nbsp;Qi Liu ,&nbsp;Jingyuan Liu ,&nbsp;Jiahui Zhu ,&nbsp;Jun Wang","doi":"10.1016/j.porgcoat.2025.109380","DOIUrl":"10.1016/j.porgcoat.2025.109380","url":null,"abstract":"<div><div>Polyurea is widely used in infrastructure protection because of its significant mechanical properties, excellent toughness, and rapid curing performance. However, developing a high-strength polyurea with a rapid impact response remains challenging. Here, dynamic boron-carbamate bonds are integrated with polyurea elastomers (B_xPU) by cross-linking a mixture of diisocyanate and aniline-terminated polyether with boric acid to achieve enhanced mechanical strength and toughness. Polyurea elastomer (B₃PU) exhibits superior mechanical performance, attributed to the synergistic effect of reversible boron-carbamate bonds and hydrogen bonds, with an ultimate strength of 53.8 MPa, a tensile strain of 738.8 %, and a toughness of 240.9 ± 26.4 MJ m⁻³. Additionally, the experimental and simulation results demonstrate that the B_xPU elastomers exhibit fast responsiveness, excellent impact resistance, and protective performance. Collectively, this study highlights a facile method for developing high-strength polyurea elastomers with enhanced impact resistance, providing a new choice for explosion protection and building longevity.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"207 ","pages":"Article 109380"},"PeriodicalIF":6.5,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication and characterization of a transparent, hydrophilic, and self-cleaning polyurethane coating on glass with a silica buffer layer and Ag₃PO₄/TiO₂ nanocomposite","authors":"Reyhaneh Kaveh,&nbsp;Zahra Alizadeh","doi":"10.1016/j.porgcoat.2025.109382","DOIUrl":"10.1016/j.porgcoat.2025.109382","url":null,"abstract":"<div><div>Self-cleaning coatings have attracted considerable interest in recent decades due to their potential to reduce maintenance costs and enhance surface durability. Among the various strategies, hydrophilic coatings incorporating metal oxides utilize the photocatalytic effects to remove organic contaminants via solar-assisted chemical degradation and water sheeting mechanisms. In this study, a polyurethane (PU)-based self-cleaning coating was fabricated by integrating Ag₃PO₄/TiO₂ (APT) nanocomposites into the PU matrix. Ag₃PO₄ was selected for its high photocatalytic activity under visible light, while TiO₂ was added to improve photostability and suppress electron-hole recombination. To enhance optical clarity and mechanical adhesion, a SiO₂ interlayer was first deposited onto glass substrates using the sol-gel method followed by dip-coating. Subsequently, the PU@APT top layer was applied via dip-coating, maintaining an immersion and withdrawal rate of 200 mm/min at a 90° dipping angle. APT nanocomposites with varying TiO₂ content—10 wt%, 30 wt%, and 50 wt%—were synthesized, yielding three formulations: APT10, APT30, and APT50. Comprehensive characterization was conducted using X-ray diffraction (XRD), Attenuated total Reflectance-Fourier transform infrared (ATR-FTIR), field emission scanning electron microscopy (FESEM), photoluminescence (PL) spectroscopy, Electrochemical impedance spectroscopy (EIS) and UV–Vis diffuse reflectance (DRS). Hydrophilicity was assessed via water contact angle (WCA) measurements, while surface roughness was evaluated using Atomic Force Microscopy (AFM). Photocatalytic performance was quantified through methylene blue (MB) dye degradation under visible light irradiation. Among the developed coatings, the SiO₂-PU@APT30 exhibited optimal performance, achieving 58 % MB degradation within 3 h, significantly outperforming the SiO₂-PU@TiO₂ and Si-PU@Ag₃PO₄, which showed only 16 % and 31 % degradation, respectively. The observed enhancement is attributed to the synergistic interaction between Ag₃PO₄ and TiO₂, facilitating improved charge separation and photocatalytic efficiency. The SiO₂-PU@APT30 coated glass achieved an impressive transmittance of 86 %. By facilitating the formation of a uniform water film instead of droplets, it effectively prevents fog accumulation, providing a significant advantage over uncoated glass. Additionally, the final coating exhibited excellent hydrophilicity, with the water contact angle (WCA) significantly reduced from approximately 63° to 27° and after 30 min of visible light exposure, completely prevents condensation and droplet formation, demonstrating superior antifogging performance compared to bare glass. This, combined with its outstanding anti-fogging performance and superior photocatalytic activity, highlights its potential as an efficient and effective self-cleaning surface treatment.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"207 ","pages":"Article 109382"},"PeriodicalIF":6.5,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144083615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bioinspired rosin-borneol eco-friendly antifouling coatings with self-renewable and self-generatable amphiphilic surface","authors":"Zhongqiang Yu ,&nbsp;Yine Ren ,&nbsp;Yanke Li ,&nbsp;Xuesong Chen ,&nbsp;Wen Sun ,&nbsp;Lida Wang ,&nbsp;Zhengqing Yang ,&nbsp;Guichang Liu ,&nbsp;Qian Zhang","doi":"10.1016/j.porgcoat.2025.109379","DOIUrl":"10.1016/j.porgcoat.2025.109379","url":null,"abstract":"<div><div>The release of toxic and persistent substances in conventional antifouling paints has elicited substantial environmental concerns, underscoring an urgent requirement for eco-friendly alternatives. This study presents the successful synthesis of an eco-friendly antifouling coating, denoted as PSBZ-X-Y, through the grafting of a hydrolysable borneol-modified zwitterionic precursor, DEA-IBOA, onto a bio- derived rosin resin. The PSBZ-X-Y coating exhibits a controlled self-renewable rate (50–400 μg/cm²·d) tuned by varying DEA-IBOA modified rosin content, which enhances the coating's durability and regulates the release of borneol. Molecular dynamics (MD) simulations and surface structure analyses, including ATR-FTIR and XPS, reveal that hydrolysis of DEA-IBOA leads to the release of the natural antimicrobial agent borneol and thus facilitates the in-situ generation of zwitterionic surfaces. Amphiphilic surfaces and natural antimicrobial borneol as eco-friendly approaches synergistically enhance the antifouling properties of natural rosin, which in turn promotes the sustainability of amphiphilic surfaces due to its self-renewal capability. Consequently, the coating exhibits remarkable resistance to protein adhesion (FITC-BSA adhesion rate: 0.4 %), bacterial biofilm formation (absorbance of biofilm: 1.3), and diatom attachment (150 cells/mm²), as well as remarkable antifouling properties in real marine environments. More importantly, the hydrolyzed products generated during the coating renewal process demonstrate no adverse effects on the marine ecosystem, thus contributing to eco-friendly antifouling systems based on natural products.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"207 ","pages":"Article 109379"},"PeriodicalIF":6.5,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144083616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hybrid waterborne polyurethane coating behavior in saline solution","authors":"Jeaneth T. Corredor ,&nbsp;Luis F. Giraldo ,&nbsp;Esneyder Agudelo","doi":"10.1016/j.porgcoat.2025.109378","DOIUrl":"10.1016/j.porgcoat.2025.109378","url":null,"abstract":"<div><div>Waterborne polyurethane/acrylate (WPUA) dispersion was synthesized via a prepolymer self-emulsifying method, using bisphenol-A-glycidyl dimethacrylate (Bis-GMA) as a chain extender and grafting agent for styrene and butyl acrylate monomers. The degradation of WPUA coatings on mild steel in a 3.5 wt% NaCl solution was investigated through electrochemical impedance spectroscopy and open circuit potential measurements. The water uptake estimated from the Brasher-Kingsbury relation, the intersection of Bode plots (IBP number), and electrical equivalent circuits (ECC) has been analyzed during the degradation process. Particle size (DLS) and morphological (TEM) analyses revealed that the WPUA dispersion exhibited nanometric particle sizes with a core-shell structure. The thermal (TGA/DTG) properties and cross-cut adhesion of the WPUA coatings were greatly enhanced compared to the blank WPU.</div><div>Contrary to typical expectations, the impedance modulus in the low-frequency range (lZ_0.01Hzl) did not decrease with immersion time for all samples; this effect is attributed to the polymer network characteristics. The degradation mechanisms of the WPUA coatings involve three steps: an initial coating failure as a consequence of the entry of water; in the second step, water absorption continues until a critical level is reached. During this stage, no significant changes in coating resistance were detected. Finally, sudden changes in the monitored parameters indicate the loss of the protective properties.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"207 ","pages":"Article 109378"},"PeriodicalIF":6.5,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144083613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"One-step fabricated multifunctional nanocomposite coatings with dynamic dewetting and active deicing for harsh environments","authors":"Zhijie Liu ,&nbsp;Linbo Zhang ,&nbsp;Huyin Yan ,&nbsp;Jing Guo ,&nbsp;Le Yuan ,&nbsp;Haipeng Lu ,&nbsp;Liangjun Yin","doi":"10.1016/j.porgcoat.2025.109386","DOIUrl":"10.1016/j.porgcoat.2025.109386","url":null,"abstract":"<div><div>Ice accretion on wind turbine blades critically compromises energy conversion efficiency (≤80 %) and structural integrity. Herein, we propose a fluorine-free multifunctional coating integrating synergistic photothermal and superhydrophobic mechanisms for sustainable anti-icing applications. The rationally designed P-CNT/PDMS/EP composite, synthesized via a single-step blade-coating technique, demonstrates simultaneous ultra-repellency (150.43° static contact angle, 3.94° sliding angle) and efficient solar energy conversion (94.88 % broadband absorption). Under simulated extreme conditions (−20 °C, 15 m·s⁻¹ crosswinds), the coating achieves rapid ice shedding within 240 s through photothermal activation while maintaining 95 % hydrophobicity retention after mechanical abrasion. Notably, ice accumulation reduces to 2 % of uncoated surfaces, coupled with exceptional environmental stability (ΔCA &lt;2° after 30-day UV/thermal aging). Multiphysics simulations incorporating phase-change dynamics and turbulent flow interactions validate year-round operational reliability across temperate to polar climates. This paradigm-shifting strategy addresses the critical durability challenges in conventional anti-icing technologies while aligning with green chemistry principles for renewable energy infrastructure.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"206 ","pages":"Article 109386"},"PeriodicalIF":6.5,"publicationDate":"2025-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Durable icephobic acrylic polyurethane coating with ultra-low interfacial toughness for efficient large-scale deicing","authors":"Chenyue Liang,&nbsp;Yu Li,&nbsp;Wuzhuang Wei,&nbsp;Yuhong Zhao,&nbsp;Shujuan Wang,&nbsp;Tao Hong,&nbsp;Xinli Jing","doi":"10.1016/j.porgcoat.2025.109374","DOIUrl":"10.1016/j.porgcoat.2025.109374","url":null,"abstract":"<div><div>Ice accretion adversely affects various productions and daily activities. Existing passive deicing materials are divided into icephobic and low interfacial toughness (LIT) coatings, suitable for ice removal of small- and large-area, respectively. However, they tend to lack scalability or durability, limiting the practical utility. Herein, thermosetting acrylic polyurethane (APU) was investigated for large-scale deicing applications by examining the detachment behavior of extended-length ice on its surface. Despite the ice adhesion strength reaching up to 400 kPa, the APU demonstrated interfacial toughness with ice as low as 0.88 J/m², with the apparent ice adhesion strength below 48 kPa for ice measuring 20 cm in length. Further, by modifying the surface of APU with liquid-like polydimethylsiloxane chains, we realized the combination of LIT coating and liquid-like surface for the first time. The interface between this resultant double-layered coating and ice achieved both low toughness (&lt;1 J/m²) and low strength (&lt;100 kPa) (LTS), enabling efficient ice removal at any accumulation scale. This LTS coating also maintained excellent ice resistance after multiple icing/deicing cycles, sandpaper abrasion, and water flow impact. When applied to various substrates, it still exhibited superior ice resistance, demonstrating strong potential for broad deicing applications.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"206 ","pages":"Article 109374"},"PeriodicalIF":6.5,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kaolin-supported NiCo-LDH nanocontainers for self-healing and anti-corrosion epoxy coatings","authors":"Lin Cao ,&nbsp;Huimeng Feng ,&nbsp;Shougang Chen ,&nbsp;Mingxian Sun ,&nbsp;Baozhu Wang ,&nbsp;Li Ma","doi":"10.1016/j.porgcoat.2025.109381","DOIUrl":"10.1016/j.porgcoat.2025.109381","url":null,"abstract":"<div><div>Considerable attention has been paid to the corrosion protection of metals due to economic and environmental issues. Among the available approaches, organic-inorganic coatings remain the most practical and economical barrier technology. Nevertheless, conventional formulations frequently suffer from limited durability, inadequate adhesion, and elevated production costs, which restrict their large-scale deployment in harsh environments. In this study, kaolin served as a substrate for the hydrothermal co-precipitation of NiCo-LDH, resulting in K/NiCoLDH composites. Gallic acid (GA), an organic corrosion inhibitor, was then intercalated into the NiCo-LDH structure to form K/NiCoLDH@GA nanocontainers, which were added to an epoxy matrix to enhance corrosion resistance and self-healing capabilities. Structural characterization demonstrated the effective combination of kaolin and NiCo-LDH, and confirmed GA intercalation into the LDH interlayers. Electrochemical measurements and laser confocal microscopy revealed that K/NiCoLDH@GA effectively inhibited the corrosion of Q235 steel by providing both barrier protection and active ion exchange.The prepared K/NiCoLDH@GA/EP coating was further evaluated through long-term electrochemical tests in a simulated seawater environment, showcasing sustained protective performance. To examine self-healing behavior, an artificial scratch was introduced on the coating surface, and the repair process was monitored via scanning Kelvin probe (SKP). Results indicated that the release of GA from the nanocontainers significantly reduced localized corrosion at the defect site. Overall, the K/NiCoLDH@GA nanocontainer system offers a promising, cost-conscious pathway for designing robust and eco-friendly corrosion-resistant epoxy coatings in demanding marine environments.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"206 ","pages":"Article 109381"},"PeriodicalIF":6.5,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced adhesion to low-surface-energy substrates using polyurethane acrylate/polyacrylate interpenetrating network pressure-sensitive adhesives","authors":"Yafang Han ,&nbsp;Ziyang Gong ,&nbsp;Renjie Zhou ,&nbsp;Weile Li ,&nbsp;Jun Shi ,&nbsp;Jiwen Hu","doi":"10.1016/j.porgcoat.2025.109376","DOIUrl":"10.1016/j.porgcoat.2025.109376","url":null,"abstract":"<div><div>In modern industrial applications, achieving strong adhesion to low surface energy materials, such as polyethylene, polypropylene, and polytetrafluoroethylene, is a significant challenge. This is primarily due to their inherent chemical inertness and weak interfacial interactions. To address this challenge, this study developed a novel pressure-sensitive adhesive with an interpenetrating network (IPN) structure. This was achieved by synthesizing linear polyethylene glycol-based polyurethane acrylate (PUA) oligomers and combining them with polyacrylate pressure-sensitive adhesives (PSA) to form the IPN structure. By adjusting the content of PUA, the viscoelasticity, mechanical, thermal, and adhesive properties of the PSA-PUA system were successfully optimized. The results demonstrate that the PSA-PUA20 exhibits excellent adhesion performance on polyethylene(PE) substrates, with a peel strength of 364.75 N/m and a loop tack of 4.03 N. Compared to polyacrylate pressure-sensitive adhesives (PSA), these values represent increases of 240.25 % and 46.58 %, respectively. Additional lap shear tests further confirmed that the PSA-PUA20 enables cyclic adhesion on polytetrafluoroethylene (PTFE) substrates. A mechanistic analysis reveals that the incorporation of PUA alters the surface energy of the adhesive, improving its spreading properties on low surface energy materials. Additionally, it strengthens the hydrogen bonds and van der Waals forces between molecular chains, significantly improving the cyclic shear performance and adhesion performance on low surface energy substrates. Furthermore, the PSA-PUA adhesive exhibits excellent antioxidant and thermal stability, offering a promising solution for the design of high-performance PSAs.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"206 ","pages":"Article 109376"},"PeriodicalIF":6.5,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thiol-based adhesion promoters for strong Parylene bonding on gold-coated substrates","authors":"Sander van den Driesche ,&nbsp;André Bödecker ,&nbsp;Michael J. Vellekoop","doi":"10.1016/j.porgcoat.2025.109364","DOIUrl":"10.1016/j.porgcoat.2025.109364","url":null,"abstract":"<div><div>Parylene coatings are effective in protecting biomedical devices and biological samples from each other. Strong and reliable adhesion of Parylene coatings is therefore crucial. For many substrates, proper adhesion is easy to obtain. For oxidizable substrates for example, the primer silane A-174 yields a sufficient adhesion. However, for gold-coated structures, adhesion is problematic. The purpose of this study was to find an adhesion promoter that chemically binds Parylene-C to gold. Two thiol-based primers were selected and tested. Gold-coated silicon wafers were soaked in an adhesion promoter solution containing 2-(methylthio)ethyl methacrylate or 4-chlorothiophenol, conformally coated with Parylene-C, and diced into 1 cm wide test strips. The adhesion force between the gold structures and Parylene-C coatings was measured by conducting 90° peel tests. In addition, the influence of post-treatment steps on the Parylene-C coated substrates was investigated. These steps included an autoclave procedure at 121 °C for 15 min, soaking in 37 °C phosphate-buffered saline for 24 h, and heat exposure in a vacuum chamber at 230 °C for 30 min. All performed peel tests showed strong adhesion between the gold substrates and Parylene-C coating. Both 2-(methylthio)ethyl methacrylate and 4-chlorothiophenol are effective adhesion promoters. A five-minute soaking step in the adhesion promoter solution just before Parylene deposition can easily be implemented in the conformal coating process flow.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"206 ","pages":"Article 109364"},"PeriodicalIF":6.5,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication of robust superhydrophobic epoxy/PANI@CNTs coatings with excellent anti-corrosion property","authors":"Meiling Li ,&nbsp;Huaiyuan Wang ,&nbsp;Yuxin Fu ,&nbsp;Jing Jing ,&nbsp;Xiguang Zhang ,&nbsp;Chijia Wang ,&nbsp;Ruitao Wang ,&nbsp;Zhanjian Liu","doi":"10.1016/j.porgcoat.2025.109373","DOIUrl":"10.1016/j.porgcoat.2025.109373","url":null,"abstract":"<div><div>The application of superhydrophobic coatings in the corrosion protection field is limited by their poor surface structural stability, interfacial compatibility and adhesion strength. Herein, we prepared an epoxy/PANI@CNTs composite superhydrophobic coating with excellent mechanochemical stability by the combination of organic-inorganic hybridization and chemical modification. PANI@CNTs nanofillers synthesized by in-situ polymerization of aniline on the CNTs surface were used to construct the necessary nano-microstructures for superhydrophobicity and enhance the corrosion inhibition. The optimal coating showed high water contact angle of 159.5 ± 0.8° and low sliding angle of 3 ± 0.4°. The adhesion strength of the prepared coating attained the highest grade (GB/T9286) due to the formation of hydrogen bonds among polyaniline, silicon hydroxyl groups and the substrate surface. Moreover, the prepared coating maintained its superhydrophobicity even after 480 s of water impact, 1000 g falling sand impact or 500 abrasion cycles, which can be ascribed to the multi-interface enhancement generated by the organic-inorganic hybridization and the hydrogen bonds interaction. Furthermore, the prepared coating also possessed outstanding corrosion resistance with low-frequency impedance modulus remained at 4.79 × 10⁸ Ω·cm² after immersion for 15 days, which was approximately three times that of the superhydrophobic coating without PANI@CNTs. This is mainly due to the triple protection mechanism formed by the air-film shielding, physical shielding of the coating and the synergistic passivation of polyaniline, endowing it with excellent anti-corrosion performance. Therefore, this study is expected to provide a theoretical reference for the application of superhydrophobic coatings in the corrosion protection of metal mechanical equipment.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"206 ","pages":"Article 109373"},"PeriodicalIF":6.5,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}