Progress in Organic Coatings最新文献

{"title":"Adhesive-free direct coating of wood and nonwood materials with biomass films produced via reassembling of lignocellulose","authors":"Naoko Kobayashi ,&nbsp;Tomohiro Hashizume ,&nbsp;Takashi Watanabe","doi":"10.1016/j.porgcoat.2025.109665","DOIUrl":"10.1016/j.porgcoat.2025.109665","url":null,"abstract":"<div><div>Petroleum-derived polymers, which are commonly coated on wood for surface decoration and protection, result in a high load on the carbon balance on Earth and exhibit difficulties related to material recycling. Herein, biomass films were prepared via the disintegration and reassembly of plant cell wall components using formic acid under ultra mild conditions (&lt;50 °C). These films were tightly coated on 30 types of hardwood and softwood offcuts by heat-pressing without synthetic polymers and adhesives. They were also coated on ceramic, glass, plastic, and metal plates. Scanning electron microscopy and water-contact-angle analysis of <em>Eucalyptus globulus</em> and a Japanese cedar film coated above 200 °C revealed a rough surface with fibril bundle structures and an increase in the hydrophobicity from 66° to &gt;90° after film coating. Thermogravimetry–differential thermal analysis coupled with mass spectrometry revealed that heat-pressing caused water evaporation, dehydration, and pyrolytic degradation of the films, along with release of the degraded products, mainly derived from xylan. Pyrolytic degradation induced penetration of the melted film components into the porous structures of the involved wood, affording a tight coating with increased hydrophobicity. Overall, this process enables hydrophobic coatings solely made from woody biomass. (190 words).</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"210 ","pages":"Article 109665"},"PeriodicalIF":7.3,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145109395","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":"Tuning crystallization of thin coatings on paper: Impact of cellulose stearoyl ester on wax co-crystallization","authors":"Carina Breuer ,&nbsp;Hergen Breitzke ,&nbsp;Olaf Soltwedel ,&nbsp;Alex Hairapetow ,&nbsp;Linus Sprandl ,&nbsp;Andreas Geissler ,&nbsp;Gerd Buntkowsky ,&nbsp;Regine von Klitzing ,&nbsp;Markus Biesalski","doi":"10.1016/j.porgcoat.2025.109682","DOIUrl":"10.1016/j.porgcoat.2025.109682","url":null,"abstract":"<div><div>Paper-based packaging represents a viable alternative for reducing plastic usage. To tailor material performance, wax coatings with distinct crystallization behaviors are employed. One coating system of particular interest is a blend of low-molecular-weight ethylene glycol distearate (EGDS) and fully substituted cellulose stearoyl ester (CSE). Upon cooling from the melt under ambient conditions, this blend forms superficial crystalline structures on the micrometer scale, enabling its function as a regenerable, superhydrophobic paper coating. This study investigates the co-crystallization behavior of EGDS and CSE, focusing on the spontaneous out-of-plane growth of crystallites without significant energy input. Initially, the crystallization of pure EGDS was characterized. Subsequently, the interaction of EGDS wax with biobased CSE polymer was examined in detail using calorimetric analysis, scattering techniques, and NMR spectroscopy, respectively. The influence of the side chain length of the cellulose ester, and its impact on chemical compatibility with EGDS, was also considered. The system exhibits phase mediation through the insertion of polymeric aliphatic side chains into the EGDS structure and the formation of CSE side-chain crystallites, which serve as nucleation sites for subsequent EGDS crystallization. This allows the controlled tuning of crystalline morphology and thus broaden its applicability in sustainable material development for advanced applications.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"210 ","pages":"Article 109682"},"PeriodicalIF":7.3,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145118869","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":"A novel fluorine/nanoparticle-free self-roughened organosilicon finishing agent with robust durability: toward superhydrophobic restoration and anti-icing of firefighting suit","authors":"Jiyuan Han ,&nbsp;Yang Liu ,&nbsp;Ke Shang ,&nbsp;Jinjun Yang ,&nbsp;Junsheng Wang","doi":"10.1016/j.porgcoat.2025.109683","DOIUrl":"10.1016/j.porgcoat.2025.109683","url":null,"abstract":"<div><div>The hydrophobicity of firefighting suit is crucial as it effectively blocks liquid-phase hazards (water/chemicals), maintains wear comfort, and enhances durability and safety by preventing water penetration, essential for firefighters' operational reliability in harsh environments like cold conditions. However, the preparation of abrasion resistant and transparent superhydrophobic coating without fluorine/nanoparticle by environmentally friendly methods is still a major challenge. In this study, a highly abrasion resistant silicone polymer was synthesized by vinyl-terminated polydimethylsiloxane, hydride-terminated polydimethylsiloxane, and methyl vinyl MQ silicone resin. Through solvent-induced phase separation, the silicone polymer could be stably dispersed in the phase-separated system at micro/nano scales. Systematic optimization of the solvent (tetrahydrofuran) to non-solvent (deionized water) ratio yielded a water-rich organosilicon finishing agent capable of spontaneously forming micro/nanoscale rough surfaces following a mild curing temperature. The cured organosilicon finishing agent showed highly transparency with a transmittance reaching 88 %. The aramid fabric after being coated by organosilicon finishing agent showed excellent superhydrophobicity with contact angle of 159° and sliding angle of 5.5°. After 10 standard washing cycles, 400 cycles of sandpaper abrasion, and 24 h acid, alkali, and salt immersion, it still retains its superhydrophobicity with a contact angle greater than 150°. Notably, the finished aramid fabric maintains nearly unchanged breathability and flexibility while exhibiting exceptional anti-icing properties. These characteristics significantly enhance the operational efficiency and safety for firefighters in northern cold regions. The preparation of environmentally friendly superhydrophobic organosilicon finishing agent demonstrates large-scale production potential and shows promising application prospects in high-end textiles and specialized protective equipments.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"210 ","pages":"Article 109683"},"PeriodicalIF":7.3,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145109384","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":"Spray-coated polylactic acid/polyhydroxyalkanoate biodegradable bioplastic films on paper: A sustainable strategy for enhancing barrier and mechanical properties","authors":"Chenxi Cao ,&nbsp;Kihyeon Ahn ,&nbsp;Su Jung Hong ,&nbsp;Young-Teck Kim ,&nbsp;Zunhuang He ,&nbsp;Haibo Huang ,&nbsp;Zhiwu Wang ,&nbsp;Eunhye Lee ,&nbsp;Yookyoung Shim","doi":"10.1016/j.porgcoat.2025.109685","DOIUrl":"10.1016/j.porgcoat.2025.109685","url":null,"abstract":"<div><div>This study proposes a sustainable alternative to conventional plastic coatings in packaging by developing a biodegradable coating system based on polylactic acid (PLA) and polyhydroxyalkanoate (PHA). A novel spray coating technique followed by hot pressing was used to apply PLA/PHA blends onto kraft pulp paper. This approach aimed to enhance mechanical strength, barrier properties, and water resistance while maintaining compostability. The coating behavior was strongly influenced by the PLA to PHA ratio. PLA formed a dense surface layer that effectively sealed pores, while PHA penetrated more deeply into the fibrous matrix, filling internal voids. These complementary roles contributed differently to the mechanical and barrier properties. In particular, the 50:50 PLA/PHA blend showed the most balanced results, achieving the lowest oxygen transmission rate and improved tensile strength. The thermogravimetric analysis further confirmed enhanced thermal stability in all coated samples compared to uncoated paper, with the degradation temperature profile shifting depending on the polymer composition. However, coatings with excessive PHA content showed surface irregularities and reduced barrier performance due to poor film formation. Overall, this work demonstrates that compositional tuning of PLA and PHA enables multifunctional coatings with improved mechanical, thermal, and barrier properties. The proposed spray-based method offers a scalable, eco-friendly solution for high-performance biodegradable packaging.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"210 ","pages":"Article 109685"},"PeriodicalIF":7.3,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145109393","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 crosslinking characteristics of blocked isocyanate-based 1 K polyurethane clearcoats via self-crosslinkable polymer networks","authors":"Chung Hyeon Noh ,&nbsp;Hyerin Kang ,&nbsp;Hyeonmin D. Kim ,&nbsp;Minsoo P. Kim ,&nbsp;Hyun-jong Paik ,&nbsp;Seung Man Noh","doi":"10.1016/j.porgcoat.2025.109673","DOIUrl":"10.1016/j.porgcoat.2025.109673","url":null,"abstract":"<div><div>One-component (1 K) polyurethane clearcoats offer significant operational advantages over two-component (2 K) systems through simplified processing and extended shelf life, yet suffer from inferior mechanical performance due to inherent limitations in their crosslinking capabilities. Conventional 1 K systems rely solely on intermolecular crosslinking between segregated polyol and blocked isocyanate components, leading to heterogeneous crosslinker distribution, microphase separation, and ultimately compromised coating properties. To address these fundamental issues, we developed a unique self-crosslinkable prepolymer (SCP) incorporating both hydroxyl and blocked isocyanate functionalities within single polymer chains, enabling to produce a self-crosslinkable polyurethane clearcoat (SC-PUP) upon heat. Our molecular architecture approach enables simultaneous intramolecular and intermolecular crosslinking mechanisms through dual reactions that minimizes crosslinking distance between functional groups and eliminates heterogeneity within the polymer matrix. The SC-PUP clearcoat containing SCP demonstrates enhanced performances, with higher storage modulus (5.08 <span><math><mo>×</mo></math></span> 10⁵ Pa), glass transition temperature of 81.39 °C, and crosslinking density (2.02 × 10⁻³ mol/g) compared to the OC-PUP and PL-PUP clearcoats via intermolecular crosslinking. Surface hardness utilizing SC-PUP increased to 272.35 MPa with superior scratch resistance, while tensile strength showed improvement over the intermolecular crosslinking PU clearcoats. It is attributed to the formation of a uniformly dense crosslinking network structure with hydroxyl conversion efficiency based on SC-PUP, substantially exceeding the other clearcoats. The self-crosslinking approach successfully bridges the performance gap between 1 K and 2 K systems while maintaining processing simplicity, establishing a new paradigm for high-performance automotive clearcoat technology.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"210 ","pages":"Article 109673"},"PeriodicalIF":7.3,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145109383","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":"Methylcellulose-based composite hydrogels with high water retention and strong flame retardancy","authors":"Mengru Wei ,&nbsp;Shikuan Xu ,&nbsp;Fengmei Ding ,&nbsp;Yanjun Xing","doi":"10.1016/j.porgcoat.2025.109681","DOIUrl":"10.1016/j.porgcoat.2025.109681","url":null,"abstract":"<div><div>In this study, a green flame-retardant thermo-sensitive hydrogel was developed, comprising methyl cellulose (MC) as the carrier, a phytic acid (PA)-urea (U) composite (PAU) as the flame retardant and calcium cation (Ca²⁺) as the water absorbent. When applied to fabrics, the hydrogel undergoes a phase transition upon exposure to high temperatures, forming a robust barrier that significantly enhances flame retardancy. The samples were characterized using Fourier-transform infrared spectroscopy (FTIR), rheology, thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS). The water absorption and retention properties of the MC/PAU/Ca coating were also evaluated, demonstrating superior absorbency, water retention, and thermal stability, which collectively contribute to improved flame retardancy. Compared with the untreated fabric, the MC/PAU/Ca flame-retardant coated sample exhibited a limiting oxygen index (LOI) value of 44.8 ± 1.5 %, and vertical flame testing (VFT) confirmed a UL-94 V-0 rating. The flame-retardant mechanism of coating in the gas phase and the condensed phase were effectively investigated by the FTIR of char residue and Thermogravimetric analysis-infrared spectrometry (TG-IR) analysis. During combustion, the coating generated a dense char layer enriched with phosphorus (P), nitrogen (N), and calcium (Ca), along with the non-flammable gases, which synergistically acted as an effective flame retardant mechanism. Overall, the MC/PAU/Ca hydrogel represents a promising green flame-retardant coating for flammable materials.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"210 ","pages":"Article 109681"},"PeriodicalIF":7.3,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145109394","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":"Aromatic ethers, biphenyl π-conjugation and dynamically imine-bond enhanced waterborne polyurethanes: synergistic molecular design for high-performance carbon fiber sizing coatings","authors":"Xin Song,&nbsp;Chunfeng Li,&nbsp;Lei Le,&nbsp;Zhihao Zhang,&nbsp;Mingli Liu","doi":"10.1016/j.porgcoat.2025.109680","DOIUrl":"10.1016/j.porgcoat.2025.109680","url":null,"abstract":"<div><div>Waterborne polyurethanes (WPUs) have emerged as the preferred option for researchers aiming to replace solvent/emulsion-based resins in carbon fibers (CFs) coatings, owing to their superior adhesion, eco-friendliness, and cost-effectiveness. However, conventional polyether/polyester-based WPU coatings often exhibit insufficient mechanical properties, thermal stability, and weathering resistance. To address these limitations, a diol (PHBA-D1000) containing dynamically reversible imine bonds was synthesized via Schiff base formation between 4-hydroxybenzaldehyde (PHBA) and Jeffamine D1000. Ethoxylated bisphenol A (BPE) and 1,4-bis(2-hydroxyethoxy) benzene (HQEE) were copolymerized proportionally as co-monomers, using PHBA-D1000 as the soft-segment backbone to produce BPE/HQEE-modified WPUs (EWPUs). These EWPUs incorporate π-π conjugated benzene stacking, aromatic ether, biphenyl, carbamate, polyurea, imide, carboxylic acid, and carbonyl groups within their molecular structure. The synergistic effects of these co-monomers improved the overall properties of EWPUs, yielding coatings with better thermal stability (T5% at 269.5 °C), higher tensile strength (46.1 MPa), and greater adhesion (18.7 kPa), showcasing improvements of 26.7 %, 95.3 %, and 21.9 %, respectively. Utilizing EWPUs as sizing coatings significantly enhanced the reactivity, wettability, and mechanical properties of CFs. These coatings introduced functional groups and rigid chains onto the fiber surface, effectively repairing CF surface defects and increasing surface roughness. The surface energy and monofilament tensile strength of EWPU-coated CF reached 59.3 mN/m and 6.216 GPa, respectively, corresponding to improvements of 66.1 % and 24.5 % compared to unsized CF. EWPUs demonstrate outstanding overall performance and notable functional characteristics, highlighting their significant potential for diverse applications and further development.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"210 ","pages":"Article 109680"},"PeriodicalIF":7.3,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106549","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":"Synthesis of a biomass coating: Castor oil-based waterborne polyurethane coatings with high transparency, hydrophobicity and corrosion resistance","authors":"Tianyu Xiu ,&nbsp;Qingqing Shen ,&nbsp;Junmin Wan","doi":"10.1016/j.porgcoat.2025.109675","DOIUrl":"10.1016/j.porgcoat.2025.109675","url":null,"abstract":"<div><div>Bio-based waterborne polyurethanes (CWPUs) were synthesized from castor oil (CO) and polytetrahydrofuran (PTMG) via stepwise crosslinking. Systematic variation of the PTMG:CO molar ratio (10:0–4:6) revealed that increasing CO content elevates crosslink density, raising the glass transition temperature (ΔT = +10.6 °C) while synergistically enhancing thermal stability (T_-5% ≤ 280 °C) and hydrophobicity (water contact angle ≤100.59°). Concurrently, water absorption decreased to 2.36 %. Mechanical properties exhibited toughness-strength equilibration (tensile strength: 1.9–5.7 MPa; elongation: 173–1224 %). All films maintained &gt;97 % transparency across 400–800 nm. Critically, the sample with PTMG:CO = 8:2 (CWPU-2) developed surface nano-island microdomains, which conferred exceptional corrosion resistance. This was quantified by a five-order-of-magnitude reduction in corrosion current density (99.999 % inhibition efficiency) and validated by withstanding 12 h immersion in 0.5 M CuSO_4, 5 wt% H₂SO₄, and 5 wt% NaOH with only reversible whitening. This system achieves concurrent optimization of toughness, corrosion resistance, and transparency at PTMG:CO = 8:2–5:5, providing sustainable alternatives for flexible electronics, marine coatings, and optical encapsulation.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"210 ","pages":"Article 109675"},"PeriodicalIF":7.3,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106547","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":"Construction of multiple heterointerfaces in layered thermoelectric nanocoating to realize highly sensitive remote fire-warning","authors":"Huali Xie ,&nbsp;Xiuyuan Lin ,&nbsp;Jieming Zhang ,&nbsp;Xuejun Lai ,&nbsp;Kunquan Li ,&nbsp;Xiaojing Su ,&nbsp;Yunhui Wu ,&nbsp;Xiaofan Zhang ,&nbsp;Wenjian Wu","doi":"10.1016/j.porgcoat.2025.109676","DOIUrl":"10.1016/j.porgcoat.2025.109676","url":null,"abstract":"<div><div>Organic thermoelectric materials demonstrate significant application potential for remote temperature monitoring during the fire incubation period and early fire-warning. Nevertheless, their low thermoelectric efficiency compromises the sensitivity, reliability and accuracy of sensing signal. Herein, heterogeneous thermoelectric nanowires (HTN) and thermoelectric graphene (TEG) were synthesized, and they were subsequently co-assembled to construct a thermoelectric nanocoating featuring multiple heterostructure and ordered layered structure. Thanks to the synergistic effect of the two structures, the thermoelectric-response temperature-sensing of the nanocoating demonstrated exceptional sensitivity, accuracy, and stability. The nanocoating swiftly triggered a fire-warning within 1.3 s upon exposure to flame, and even in the event of secondary burning, the fire-warning trigger time was only extended to 1.5 s. The output voltage of the nanocoating exhibited a precise and repeatable linear functional relationship (U = 0.0248 T-0.779) within the temperature range of 50–300 °C, enabling remote real-time temperature monitoring when integrated with a wireless signal transmitter. Moreover, the ordered layered structure endowed the nanocoating with excellent flame-retardancy, enabling it to self-extinguish during the flame-retardant tests. Thus, this thermoelectric nanocoating opened a new pathway for intelligent fire safety protection of flexible electrical materials.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"210 ","pages":"Article 109676"},"PeriodicalIF":7.3,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106546","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":"Double-layer structure superhydrophobic coatings based on silica-modified graphene oxide: Robust stability, weather resistance, and anti-corrosion","authors":"Shaoheng Yang ,&nbsp;Haohao Hu ,&nbsp;Zhengbang Tong ,&nbsp;Haojun Lin ,&nbsp;Zhuangzhuang Chu ,&nbsp;Yang Hu ,&nbsp;Zhuohong Yang","doi":"10.1016/j.porgcoat.2025.109668","DOIUrl":"10.1016/j.porgcoat.2025.109668","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-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.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"210 ","pages":"Article 109668"},"PeriodicalIF":7.3,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106551","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}