Progress in Organic Coatings最新文献

{"title":"Enhanced corrosion protection of waterborne polyurethane coatings using highly dispersed polyaniline-graphene composites","authors":"Qiuyuan Huang ,&nbsp;Ge Cao ,&nbsp;ShiJia Zhang ,&nbsp;Baolong Liu ,&nbsp;Zhengyu Wang ,&nbsp;Enhou Han","doi":"10.1016/j.porgcoat.2026.110011","DOIUrl":"10.1016/j.porgcoat.2026.110011","url":null,"abstract":"<div><div>Corrosion is one of the leading causes of material degradation and structural failure, highlighting the urgent need for environmentally friendly and high-performance protective coatings. In this work, a series of graphene–polyaniline (G-PANI) nanocomposites were synthesized via tannic acid-assisted in situ oxidative polymerization, and incorporated into waterborne polyurethane (WPU) matrices at loadings of 0–2.0 wt%. Morphological and spectroscopic analyses confirm that at 1.5 wt%, G-PANI forms a uniformly dispersed and well-bonded conductive network. Electrochemical impedance spectroscopy (EIS) and polarization tests reveal that the 1.5 wt% G-PANI/WPU coating maintains a low-frequency impedance of &gt;5 × 10⁷ Ω·cm² and a corrosion current density of 1.07 × 10⁻⁸ A·cm⁻² after 30 days of immersion in 3.5 wt% NaCl, corresponding to a corrosion rate of 4.89 × 10⁻³ mpy—dramatically lower than that of the unmodified WPU (189.8 mpy). Salt spray testing further shows minimal scribe creep width (1–2 mm, ASTM D1654 Rating 8–9) and negligible blistering (ASTM D714 Size 8/Few) for the 1.5 wt% sample, indicating superior durability. XPS results indicate a synergistic protection mechanism involving graphene-based tortuous diffusion barriers, Cl⁻ capture by protonated PANI, and interfacial Fe(III) passivation. Additionally, infrared thermography and UV–Vis spectroscopy confirm that G-PANI enhances broadband UV/NIR absorption and nonradiative heat conversion. The 1.5 wt% coating demonstrates excellent photothermal and anti-UV aging performance, attributed to the π-conjugated architecture and improved filler dispersion. These results highlight a facile strategy for designing multifunctional, eco-friendly waterborne coatings with optimized corrosion and optical resistance.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"214 ","pages":"Article 110011"},"PeriodicalIF":7.3,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146081774","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":"Robust anti-fogging coatings based on silicate-PVA composites: achieving high transparency, hydrophilicity, durability and self-cleaning","authors":"Xiao Lu,&nbsp;Xiaoyi Liu,&nbsp;Qingqing Zhang,&nbsp;Ren Liu,&nbsp;Jing Luo","doi":"10.1016/j.porgcoat.2026.110005","DOIUrl":"10.1016/j.porgcoat.2026.110005","url":null,"abstract":"<div><div>Hydrophilic coatings have significant advantages in anti-fogging but are still hampered by the difficulty in concurrently optimizing hydrophilicity, durability, and light transmittance. This study successfully fabricated a robust anti-fogging coating with excellent hydrophilicity, high transparency, and exceptional durability based on silicate and polyvinyl alcohol (PVA). The as-prepared silicate/PVA composite coating exhibited a static contact angle of 14.4 ± 1.02° and approximately 90% light transmittance, demonstrating good hydrophilicity and high transparency, along with outstanding mechanical properties including a pencil hardness of 6H and a cross-cut adhesion rating of grade 0. In addition, it maintained over 85% light transmittance in both high-temperature steam (60–90 °C) and low-temperature cold fog (4 °C) environments, which demonstrated exceptional anti-fogging performance across a broad temperature range. Furthermore, the coating possessed long-term anti-fogging capability, maintaining stable hydrophilicity and high transmittance after undergoing different tests-400 abrasion cycles under a 500 g load, chemical immersion, and high-temperature treatment. Additionally, the coating exhibited self-cleaning capability that effectively suppressed dust and oil adhesion, which confirmed its anti-dust and anti-fouling performance. These results indicated the coating's potential for application in optical transparent devices.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"214 ","pages":"Article 110005"},"PeriodicalIF":7.3,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146081777","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":"Flame-retardant functionalized biobased carbon dots as nanoenhancers for flame retardant, transparent and UV-shielding properties of epoxy resin","authors":"Qinting Su ,&nbsp;Haonan Li ,&nbsp;Yang Leng ,&nbsp;Yushang Wei ,&nbsp;Xiaoli Li ,&nbsp;Miaojun Xu ,&nbsp;Bin Li","doi":"10.1016/j.porgcoat.2026.109985","DOIUrl":"10.1016/j.porgcoat.2026.109985","url":null,"abstract":"<div><div>The concurrent integration of high flame retardancy and optical transparency into epoxy resins (EP) presents a considerable challenge in 5G technology. In this study, the bio-carbon dots (CDs) were successfully synthesized by a one-step hydrothermal method using corncob, ethylenediamine (EDA), and 2-carboxyethyl(phenyl)phosphinic acid (CEPPA) as raw materials. The phosphorus modification CDs (PCDs) were further functionalized through a nucleophilic substitution reaction between CDs and diphenylphosphinic chloride (DPPC). Then PCD used as functional fillers incorporated into epoxy resin to prepare a series of EP/PCDs composites. Interestingly, apart from flame retardancy, the prepared PCDs demonstrated additional capabilities in UV protection, optical transparency, and mechanical reinforcement. When the PCDs addition reached 5 wt%, the EP composite achieved a UL-94 V-0 rating and an LOI value of 36.5%. Relative to pure EP, the EP/PCDs composite exhibited marked reductions in peak heat release rate (pHRR), total heat release (THR), and carbon dioxide production (CO₂P) by 33.4%, 20.1%, and 26.4%, respectively. In addition, EP/5PCDs composites exhibited a 19.8% and 21.4% enhancement in tensile and impact strength, respectively, while retaining their fluorescent properties. Furthermore, the transmittance of EP/5PCDs composites was reduced to 2% at UV-A wavelengths, which indicated that PCDs enhanced UV shielding properties. Meanwhile, EP/5PCDs composites maintained outstanding transparency and also exhibited good the thermal decomposition stability. To conclude, the EP/PCDs composite achieved a balance between flame retardancy, transparency, mechanical properties, and additional functionalities, demonstrating significant potential for anti-counterfeiting and advanced technological applications.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"214 ","pages":"Article 109985"},"PeriodicalIF":7.3,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146081773","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 one-stone-two-birds tactic: Pyrolysis-driven durable superhydrophobic wood/bamboo with photothermal effect for outdoor ice prevention","authors":"Jiayun Su ,&nbsp;Minfeng Huang ,&nbsp;Jiankun Wu ,&nbsp;Jianyu Wu ,&nbsp;Yuying Yang ,&nbsp;Yan Yu ,&nbsp;Rilong Yang","doi":"10.1016/j.porgcoat.2026.109999","DOIUrl":"10.1016/j.porgcoat.2026.109999","url":null,"abstract":"<div><div>As a renewable building material, wooden material is susceptible to frost and icing when exposed to harsh outdoor conditions, which not only severely affects the service life of wood but also cause significant safety hazards. Constructing superhydrophobic wooden surfaces with photothermal functions is an effective way to delay droplet freezing and ice accumulation. However, this modification strategy always involves complex preparation processes, and the durability of these superhydrophobic wooden surfaces is unsatisfactory. In this work, a one-stone-two-birds tactic to construct durable superhydrophobic wood/bamboo surface with photothermal effect was proposed. By thermally decomposing wood pre-coated with a polydimethylsiloxane/hydroxyapatite nanospheres (PDMS/HAP) layer, PDMS was converted into silica nanoparticles with silane on the surface, and a carbon layer with photothermal conversion properties was formed on the wooden surface. The simultaneous generation of hydrophobic silica nanoparticles and a carbon layer endowed the wood/bamboo surface with durable superhydrophobic properties and photothermal conversion capabilities. This method can be applied to various wood species and bamboo. The obtained wooden superhydrophobic surface exhibited a water contact angel of 160.5°, and has excellent durability. This superhydrophobic surface could not only withstand physical abrasion such as sandpaper abrasion and water impact, but also maintain its superhydrophobicity after exposure to chemical corrosion and UV irradiation. This superhydrophobic layer also provided the wooden materials with good dimensional stability and moisture resistance. In addition, the photothermal conversion effect enabled the wood surface to rapidly rise to 55.3 °C under one sun illumination, and ice crystals slid off its surface within 8 s. This work presents a simple and promising strategy for constructing photothermal and superhydrophobic layer on wood/bamboo surface, and is expected to mitigate the frosting and icing problems of wooden building materials in cold conditions and extend their service life.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"214 ","pages":"Article 109999"},"PeriodicalIF":7.3,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146081683","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":"Screening of potential abiotic and bio-based coatings for enhancing the mechanical properties and water resistance of coir geotextiles","authors":"Tianxiang Peng,&nbsp;Liangyong Li,&nbsp;Jiacheng Chen,&nbsp;Yang Lin,&nbsp;Gengxin Li,&nbsp;Yang Gao","doi":"10.1016/j.porgcoat.2026.110007","DOIUrl":"10.1016/j.porgcoat.2026.110007","url":null,"abstract":"<div><div>Physical coating plays a crucial role in extending the service life of coir geotextiles and enhancing their performance. In this study, six potential coatings were selected for preliminary evaluation: natural latex, shellac, rosin, chitosan, bitumen emulsion, and epoxy resin. The coating properties, including drying time, kinematic viscosity, hardness, water resistance, and hydrophobicity, were assessed. Additionally, the mass change rates of coir geotextiles before and after soaking were measured. The tensile load-extension curves of coir geotextiles before and after soaking were obtained, and tensile strength was calculated. The microstructure of the geotextiles was observed. The results indicated that after seven days of drying and curing, the pencil hardness of the epoxy resin coating was 3H, while all other coatings had a pencil hardness of 6B. Water resistance was found to be superior in bitumen emulsion, epoxy resin, and chitosan coatings compared to the others. In terms of mass change, the coir geotextiles coated with epoxy resin experienced the lowest mass increase at 24 h, with a value of only 31.55%. In their dry state, the tensile strength of coir geotextiles coated with epoxy resin, bitumen emulsion, and natural latex increased by 33.8%, 23.2%, and 24.6%, respectively, compared to untreated geotextiles. Considering the water resistance, hardness, mass change rate, and tensile strength, epoxy resin was the most suitable coating for coir geotextiles.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"214 ","pages":"Article 110007"},"PeriodicalIF":7.3,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146081778","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":"In-situ metal-chelated bio-epoxy coatings from epoxidized soybean oil and salicylic acid for controlled-release fertilizers","authors":"Zenan Zou ,&nbsp;Shiping Wang ,&nbsp;Lushen Shen ,&nbsp;Jiaxin Pan ,&nbsp;Ke Li ,&nbsp;Yingying Zhan ,&nbsp;Lijuan Shen ,&nbsp;Ganchang Lei ,&nbsp;Lilong Jiang","doi":"10.1016/j.porgcoat.2026.110001","DOIUrl":"10.1016/j.porgcoat.2026.110001","url":null,"abstract":"<div><div>Bio-based epoxy resins offer a sustainable alternative to petroleum-derived polymers, but their adoption is often limited by inferior mechanical properties, high costs, and reliance on toxic hardeners. This study presents a fully bio-based epoxy resin synthesized through the solvent-free curing of epoxidized soybean oil (ESO) with salicylic acid (SA), a natural hardener with plant-regulating properties. To overcome SA's poor compatibility with ESO and low reactivity below its melting point, an in-situ metal chelation strategy was employed, enhancing both curing kinetics and mechanical performance through the formation of a reinforcing metal-supramolecular network. The resulting resin cured rapidly at 120 °C in just one hour, exhibiting superior toughness and strength (tensile strength = 8.05 MPa, elongation at break = 103.50%). When applied as a 3 wt% coating with 0.3 wt% wax on fertilizer granules, the resin demonstrated excellent controlled-release performance, retaining 72.2% of nitrogen after 28 days. Unlike previously reported bio-based epoxy resins, this system combines rapid low-temperature curing with superior mechanical properties, significantly reducing energy consumption and processing time. Additionally, its soil-degradable nature and cost-effective, eco-friendly synthesis make it a promising candidate for sustainable agricultural materials. This work advances the development of high-performance bio-based polymers with practical industrial scalability.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"214 ","pages":"Article 110001"},"PeriodicalIF":7.3,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146057411","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":"Rice-leaf-inspired high-strength and multifunctional superhydrophobic paper using flaky beeswax particles and amino-modified SiO2 within coatings","authors":"Qing Wu ,&nbsp;Yanyang Lei ,&nbsp;Heyi Wang ,&nbsp;Renjie Yao ,&nbsp;Jianfeng Zhu","doi":"10.1016/j.porgcoat.2026.110009","DOIUrl":"10.1016/j.porgcoat.2026.110009","url":null,"abstract":"<div><div>Superhydrophobic paper offers great promise for applications from daily life to artistic creation and cultural preservation, whereas, the difficulties of transparency, simplicity, mechanical fragility and green sustainability limit its implementation. Inspired by the superhydrophobicity of rice leaves, herein, micro-sized flaky beeswax particles were prepared and creatively mixed with hydrophilic nano-sized amino-modified SiO₂ in diverse ratios, and subsequently sprayed onto polydimethylsiloxane-pretreated Xuan paper surface for obtaining transparent (transmittance value of 37.4% ∼ 43.9%&gt;original paper of 36.6%) superhydrophobic coatings coupled with acid-alkali-resistance, self-cleaning property, and mechanical durability. When the ratio of beeswax particles to SiO₂ is 1:9, the coating maintained its superhydrophobicity (≥150°) after exposure to tape peeling, sandpaper abrasion, finger rubbing, and acid-alkali corrosion (pH = 5, 10). Meanwhile, this coating achieves a 36.7% increase in tensile strength of paper relative to the original one. The superior protective mechanism arises from the strong coating-paper interfacial adhesion, uniform SiO₂ distribution, and the dule role of a spot of beeswax particles in providing both binding and low surface energy. This strategy yields a balanced solution for water-repellent Xuan paper that combines simplicity, sustainability, high strength, and multi-functionality, making it suitable for fragile paper applications.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"214 ","pages":"Article 110009"},"PeriodicalIF":7.3,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146081857","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":"Synergistic interfacial photothermal and Marangoni salt resistance effects for photocatalytic seawater hydrogen generation in dome aerogel-supported catalyst coatings","authors":"Shizhe Zhang ,&nbsp;Bin Wang ,&nbsp;Jing Lu ,&nbsp;Yi Xiong ,&nbsp;Junhua Zhang ,&nbsp;Yinghui Sai ,&nbsp;Yingying Li ,&nbsp;Yi Wu ,&nbsp;Dong Wang","doi":"10.1016/j.porgcoat.2026.109986","DOIUrl":"10.1016/j.porgcoat.2026.109986","url":null,"abstract":"<div><div>Harnessing solar energy storage in chemical bonds to convert seawater into clean fuels is conducive to alleviating the energy crisis. However, the low solar energy utilization efficiency and the damage of high salinity to catalytic activity remain formidable challenges. Herein, a strategically designed dome-shaped aerogel-coated a water film and black photocatalyst system is proposed, which depends on the interfacial photothermal effect and the Marangoni effect's salt resistance to boost H₂ evolution (24.6 mmol g⁻¹ h⁻¹) from seawater. Through H₂ production experiments, in-situ tests, and theoretical simulations, the device demonstrates that thermal activation decreases the photocatalytic activation energy barrier and accelerates reaction kinetics. Further systematic salt release experiments, integrated with the electric double-layer theory, demonstrate that the photothermal gradient distribution on the dome induces salt reflux driven by the surface tension gradient, which is capable of retaining active sites and enhancing catalyst stability. This work reveals the kinetic mechanisms of phonon-chemical energy coupling during photon conversion and salt ion-facilitated interfacial mass transfer in seawater splitting.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"214 ","pages":"Article 109986"},"PeriodicalIF":7.3,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146081775","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":"UV-curable non-isocyanate polyurethane/acrylate (NIPUA) hybrid coatings via transurethanization: A sustainable approach","authors":"Iker Razquin ,&nbsp;Iker Hidalgo-Gallardo ,&nbsp;Higer Balda-Intxaurraga ,&nbsp;Loli Martin ,&nbsp;Itziar Otaegi ,&nbsp;Lourdes Irusta ,&nbsp;Alba González","doi":"10.1016/j.porgcoat.2026.109989","DOIUrl":"10.1016/j.porgcoat.2026.109989","url":null,"abstract":"<div><div>(Meth)Acrylic end-capped non-isocyanate polyurethanes (NIPUAs) were synthesized via transurethanization. The resulting prepolymers were then blended with acrylic monomers to produce UV-curable hybrid urethane/acrylic coatings. The structural characterization of the prepolymers before curing was performed using Fourier transform infrared spectroscopy (FTIR), proton nuclear magnetic resonance (¹H NMR), and carbon nuclear magnetic resonance (¹³C NMR). Thermal properties were evaluated using differential scanning calorimetry (DSC) and thermo gravimetric analysis (TGA). The curing reaction was analyzed by “in situ” photo FTIR and photo calorimetry, achieving high conversion within a few seconds. In the cured samples, the incorporation of NIPUA into acrylate matrix resulted in a decrease in the glass transition temperature (T_g), providing enhanced flexibility. All the coatings showed good water and solvent resistance, as well as good adhesion to pine wood. The hardness increased with the acrylic content of the coatings. The results show that the NIPUA/acrylate blends can be tailored according to the requirements of specific coating applications, highlighting their potential as safer and environmentally friendly alternatives to isocyanate-based polyurethane coatings.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"214 ","pages":"Article 109989"},"PeriodicalIF":7.3,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146081776","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":"Biogenic nanomaterial-based mitigation of multi-metal microbiologically influenced corrosion","authors":"Muthukumar Krishnan ,&nbsp;Harinee Subramanian ,&nbsp;Arulmozhi Muthukumarasamy ,&nbsp;Duan Jizhou","doi":"10.1016/j.porgcoat.2026.109984","DOIUrl":"10.1016/j.porgcoat.2026.109984","url":null,"abstract":"<div><div>Toxic and non-toxic alloy coupons were exposed to various environmental conditions annually to study microbiologically influenced corrosion (MIC) communities. This study provides the first evidence of gram-positive bacteria responsible for MIC-accelerated pitting corrosion on both toxic and non-toxic alloy coupons. Across coupons under different environmental conditions, gram-positive bacteria predominantly showed MICs higher than those of gram-negative bacteria. The main MIC strains <em>B. horikoshii</em> (PQ549955), <em>B. jeotgali</em> (PQ554780), <em>B. safensis</em> (PQ554710), <em>B. infantis</em> (PQ554706), <em>B. aryabhattai</em> (PQ554711), <em>E. mexicanum</em> (PQ554714), <em>S. sciuri</em> (PQ554798), <em>S. haemolyticus</em> (PQ554797), and <em>P. celer</em> (PQ554704) were identified through 16S rDNA sequencing. Marine environments induce more aggressive pitting corrosion than freshwater environments because chloride and sulfur ions in seawater penetrate oxide films on metal surfaces. SEM and 3D laser microscopy results confirmed that marine conditions lead to significantly more aggressive pitting corrosion on the coupons. This study also systematically explored ‘One-Pot’ green-fused nanomaterials synthesized with <em>Turbinaria ornata</em> (TO) extracts and characterized by various techniques. The TOZnO@CdO-NCs showed maximum activity against <em>P. celer</em> and the least growth inhibition in <em>B. jeotgali</em> and <em>B. safensis</em>. This likely involves the accumulation of TOZnO@CdO-NCs in bacterial cell membranes, disrupting physiological functions or causing cell death. Overall, the TOZnO@CdO-NCs show strong potential as innovative anti-corrosion coatings for marine applications and may soon be incorporated into protective paints.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"213 ","pages":"Article 109984"},"PeriodicalIF":7.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146078606","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}