Progress in Organic Coatings最新文献

{"title":"Adsorption and mechanical properties of composite coatings based on zeolite 13× and sulfonated polymer for thermal energy storage in electric vehicles","authors":"M. Gelaw ,&nbsp;D. Palamara ,&nbsp;A. Freni ,&nbsp;S. De Antonellis ,&nbsp;E. Proverbio ,&nbsp;L. Calabrese","doi":"10.1016/j.porgcoat.2025.109460","DOIUrl":"10.1016/j.porgcoat.2025.109460","url":null,"abstract":"<div><div>Electric vehicles will play an increasingly important role in the energy transition in the coming years. One of the main challenges limiting their adoption is the reduced driving range compared to conventional vehicles, which can further decrease by up to 50 % in winter conditions, due to passengers' compartment climate control. A promising technique to mitigate this issue is the use of a thermal storage system based on sorption materials, which enables air heating and dehumidification with significant energy savings. Although the effectiveness of this system has already been demonstrated, further studies are required to ensure the adequate mechanical properties of adsorbent materials, which are subjected to significantly higher stresses compared to stationary applications. In this context, this work focuses on the development of innovative composites based on zeolite 13× and a sulfonated pentablock terpolymer (Nexar) binder. A series of composite coatings were synthesized varying zeolite weight percentages (80–95 wt%). The coatings were applied to aluminium substrates and characterized in order to assess their mechanical, morphological, thermal, and adsorption properties. Results indicate a trade-off between adsorption capacity and mechanical robustness. While higher zeolite content (up to 95 wt%) maximized water vapour adsorption capacity (nearly 28 wt%), it negatively impacted scratch resistance (scratch widths &gt;1300 μm at 500 g load), impact resistance (3.5 mm damage diameter at 160 mJ), and pull-off strength (0.82 MPa). Conversely, coatings with 80–90 wt% zeolite offered a better balance, maintaining reasonable adsorption capacity (22.0–25.9 wt%) while improving mechanical properties. All compounds demonstrated enhanced thermal stability compared to the neat polymer and exhibited excellent adsorption/desorption reversibility, being suitable for the proposed applications in the transportation sector.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"208 ","pages":"Article 109460"},"PeriodicalIF":6.5,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271906","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":"Optimizing expansion and char strength in steel structure intumescent fire-resistant coatings via resin copolymerization","authors":"Yibo Li ,&nbsp;Ling Zhang ,&nbsp;Xinze Li ,&nbsp;Hualei Zhou ,&nbsp;Yunfa Chen ,&nbsp;Donghai Zhang","doi":"10.1016/j.porgcoat.2025.109453","DOIUrl":"10.1016/j.porgcoat.2025.109453","url":null,"abstract":"<div><div>Intumescent fire-resistant coatings (IFRC) are widely used for steel structures. The fire protection performance of the coating is closely related to its expansion and the strength of the char residue. However, these properties are often in contradiction. Recent studies suggest that resin properties play a crucial role in expansion and charring processes. Here, copolymer resins are synthesized using styrene (St), 2-ethylhexyl acrylate (2Eha), and isobutyl methacrylate (iBma), via suspension polymerization, to regulate the expansion behavior and char strength of the IFRC. Using experimental characterization combined with density functional theory (DFT), multilevel structures of the terpolymer are analyzed, consisting of plasticizing fillers formed by polymerization-induced phase separation (PIPS) and a crosslinked layer of hydrogen bonding. The IFRCs made of the copolymer resins are then evaluated for expansion and char strength, and the positive effects of the multilevel structures on performance are discussed. The results show that 2Eha significantly enhances the expansion performance, whereas iBma and St improve the char strength. The optimized IFRC, prepared from the terpolymer resin (10 wt% iBma, 20 wt% 2Eha, and 70 wt% St), extends the time to reach the steel failure temperature of 535 °C from 1276 s (uncoated) to 3236 s, a 253 % increase in the safe period. Additionally, the IFRC exhibits good flame retardancy and low smoke emission, with a peak heat release rate (PHRR) of 30.15 kW/m², fire performance index (FPI) of 4.48 m²s/kW, fire growth index (FGI) of 0.195 kW/m²/s, and smoke production rate (SPR) of 0.01649 m²/s.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"208 ","pages":"Article 109453"},"PeriodicalIF":6.5,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271904","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":"High strength, self-healing, and highly hydrophobic bio-based non-isocyanate polyurethane","authors":"Hu Wang,&nbsp;Jinbiao Min,&nbsp;Jinqing Qu","doi":"10.1016/j.porgcoat.2025.109435","DOIUrl":"10.1016/j.porgcoat.2025.109435","url":null,"abstract":"<div><div>Non-isocyanate polyurethane (NIPU) has been widely considered for its green production process and sustainable development, and it is expected to be an effective substitute for traditional polyurethane. In this work, biobased five-membered cyclic carbonate was synthesized from trimethylolpropane (TMP) and glycerol (GA) at atmospheric pressure, and then NIPU with high strength, high hydrophobicity, and self-repairing was prepared by reacting cyclic carbonates with polyamines. The three-dimensional cross-linked network structure formed after curing improves the mechanical properties and thermal stability of NIPU, with tensile strengths up to 31.05 MPa. At the same time, benefiting from the dynamic covalent bonding movement and reorganization between urethane and hydroxyl groups, NIPU has a favorable self-repairing function, and the self-repairing efficiency can reach 90 %. The abundance of polar groups provides NIPU with excellent adhesion capabilities and shear strengths up to 4.02 MPa. In addition, the long-chain diamine significantly enhanced NIPU4 hydrophobicity, and the NIPU4–4 coating water contact angle was elevated to 112.65°. This simple and efficient preparation method not only realizes the green preparation of NIPU at atmospheric pressure, but also overcomes the shortcomings of poor hydrophobicity and water resistance on the basis of ensuring good mechanical properties and heat resistance, which provides research ideas for the design and development of bio-based NIPU and expands its applications in building materials, furniture, electronic devices and other industries.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"208 ","pages":"Article 109435"},"PeriodicalIF":6.5,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144263565","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":"Strategies to improve the anti-corrosion of Al alloy substrate effectively by reinforced double interfacial adhesion and enhanced penetration resistance of labyrinth effect","authors":"Ruipeng Huang ,&nbsp;Yumeng Wang ,&nbsp;Yuze Zhou ,&nbsp;Jiaying Lei ,&nbsp;Qian Feng ,&nbsp;Tengling Ye ,&nbsp;Zhigang Liu ,&nbsp;Dongyan Tang","doi":"10.1016/j.porgcoat.2025.109447","DOIUrl":"10.1016/j.porgcoat.2025.109447","url":null,"abstract":"<div><div>In this paper, reinforced double interfacial constructions were fabricated by in situ growing appropriate coarse surfaces of layered double hydroxide (LDH) layers in mostly verticals orientation from Al alloy substrate, and then by depositing organic coatings of fluororesin through electrostatic spraying with LDH nanosheets that in mostly horizontal orientation onto LDH layers. The double interface structures consisting of coatings/LDH intermediate layers/alloy substrate realized the remarkable improvement of adhesion retention through the in-situ hydrothermal growth mechanism of LDH layers and the formation of mechanical interlocking and chemical bonding (C-O-Mg). In the adhesion strength tests, it was observed that the stripping areas of anti-corrosion coatings on the single interfacial structure of coatings/alloy substrate reached 16 % after the scratching, and then increased to 40 % after the tape peeling. However, no stripping occurred on the anti-corrosion coatings on the double interfacial structure. Moreover, the “labyrinth effect” produced by LDH nanosheets covered in horizon orientations could delay the invasion of water molecules (corrosive medium) more effectively than that of nanoparticles that in random distribution. Therefore, compared with that of the nanoparticles/fluororesin coating (2.814 × 10⁵ Ω·cm²), the <em>|Z|</em>_0.1Hz of the nanosheets/fluororesin coating increased by an order of magnitude, reaching a value of 1.020 × 10⁶ Ω·cm². After five friction cycles, the nanosheets/fluororesin coating maintained a larger water contact angle (117.20°) than the nanoparticles/fluororesin coating (108.49°), which indicated its superior mechanical stability. The works gave possible strategy enhance interfacial adhesion and permeability resistance of anti-corrosion coatings and enlarge applicable fields for both active metals and light alloys.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"208 ","pages":"Article 109447"},"PeriodicalIF":6.5,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271905","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":"Xylem fiber-wrapped organogel improved lubrication performance of epoxy coatings under dry and wet conditions","authors":"Zengxue Hu ,&nbsp;Jing Chen ,&nbsp;Wenkai Feng ,&nbsp;Dahu Yao ,&nbsp;Xiping Gao ,&nbsp;Chang Lu ,&nbsp;Xinchang Pang","doi":"10.1016/j.porgcoat.2025.109454","DOIUrl":"10.1016/j.porgcoat.2025.109454","url":null,"abstract":"<div><div>Conventional oil-based microcapsules face critical limitations such as lubricant leakage and instability in humid environments, leading to diminished durability and performance. To overcome these challenges, this study develops a novel epoxy (EP) composite coating incorporating xylem fiber-wrapped polyacrylamide (XFP) organogel particles. The XFP organogel, synthesized via solvent co-absorption and physical isolation, encapsulates glycerol within a polyacrylamide matrix stabilized by xylem fibers. This design effectively retains glycerol within the matrix, enabling it to function as an internal lubricant that contributes to the formation of a stable lubricating film while minimizing premature dissolution in aqueous conditions. Tribological tests under dry friction revealed that the EP-XFP₂₅ coating (25 wt% XFP) reduced the friction coefficient (COF) by 77.3 % and wear rate by 77.5 % compared to pure EP, driven by glycerol lubrication and enhanced fiber flexibility. In simulated seawater, the EP-XFP₁₀ coating (10 wt% XFP) achieved a 53.4 % lower COF and 87.3 % reduced wear rate, benefiting from synergistic hydration lubrication and glycerol-seawater interactions. The XFP organogel exhibited robust thermal stability (&lt; 120 °C) and anti-freezing properties (−40 °C), ensuring reliability in extreme environments. This work pioneers a sustainable, leakage-resistant self-lubricating coating, offering transformative potential for mechanical, marine, and aerospace applications requiring adaptive wear resistance.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"208 ","pages":"Article 109454"},"PeriodicalIF":6.5,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144263598","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":"Electrodeposition of PTFE superhydrophobic coatings: MgCl2-mediated micro-nano structuring for multifunctional anti-icing performance","authors":"Xin Wang,&nbsp;Bing-Bing Wang,&nbsp;Zhi-Ming Xu","doi":"10.1016/j.porgcoat.2025.109450","DOIUrl":"10.1016/j.porgcoat.2025.109450","url":null,"abstract":"<div><div>This study develops an optimized electrodeposition method for fabricating superhydrophobic polytetrafluoroethylene (PTFE) coatings by regulating magnesium chloride (MgCl₂) concentration (0.04–0.20 g/L). Systematic experiments and mechanism analysis reveal MgCl₂ plays a dual role in controlling micro-nano structure evolution and enhancing interfacial stability. The coating maintains superhydrophobicity after 300 tape-peeling cycles, 2000 mm linear abrasion, and 60 min water jet impact. XRD analysis confirms the formation of magnesium oxychloride cement phase (5 Mg(OH)₂·MgCl₂·8H₂O) acting as an effective binder to improve interfacial adhesion and mechanical strength. Charge neutralization induced by Mg²⁺ governs electrophoretic dynamics: insufficient coverage occurs at 0.04 g/L while particle agglomeration emerges at 0.20 g/L. The optimized 0.12 g/L concentration enables dense PTFE deposition and stabilizes Cassie-Baxter state, achieving a water contact angle of 166.9° with a sliding angle of 2°. Compared with bare aluminum, the optimal coating exhibits 47-fold delayed freezing time (278 s vs 6 s) and 76.5 % reduced ice adhesion strength (38.3 kPa vs 163.3 kPa). It suppresses 81.8–83.5 % ice accumulation under glaze (−3 °C) and rime (−13 °C) icing conditions. Dynamic freezing rain simulations demonstrate effective prevention of supercooled droplet retention even at low temperatures. This work advances fundamental understanding of ion concentration-mediated structural engineering and provides practical solutions for developing energy-efficient anti-icing systems in power transmission and aerospace applications under extreme climates.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"208 ","pages":"Article 109450"},"PeriodicalIF":6.5,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144263564","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":"Design synthesis and triple synergistic effect for photoelectric synchronization drive corrosion protection of mixed-valence cerium oxide/boron-doped g-C3N4 heterojunctions","authors":"Xin-Yu Zhao ,&nbsp;Zi-Xiang Liu ,&nbsp;Yuan Ma ,&nbsp;Min Miao ,&nbsp;Jin-Ku Liu ,&nbsp;Xian-Guang Zeng","doi":"10.1016/j.porgcoat.2025.109439","DOIUrl":"10.1016/j.porgcoat.2025.109439","url":null,"abstract":"<div><div>It is essential to enhance the photo-induced cathodic protection efficiency of metals to promote the application of photoelectrochemical conversion in the field of marine corrosion protection. Herein, the low photoelectric conversion efficiency and insufficient visible light response are improved by introducing electron-deficient boron in graphitic phase carbon nitride and constructing a type II heterojunction (CeO_x/BCN) with energy band-matched mixed-valence cerium oxide. The material possesses triple synergistic photoelectric corrosion resistance. This is attributed to the hunting cage structure of CeO_x/BCN heterojunction: Ce⁴⁺ reacts internally with the corrosive particle Cl⁻; Ce³⁺ and Ce⁴⁺ react externally with OH⁻, and synergistically promote the formation of passivation films with the lamellar BCN at the bottom of the structure. Meanwhile, the mixed-valence cerium oxide constructs a dynamic charge compensation network to suppress the corrosion source. In addition, the double-defect system at the CeO_x/BCN heterojunction interface accelerates the charge separation, and enables the photoelectric protection of the steel substrate. After immersion in simulated seawater for 72 h, the impedance value of the CeO_x/BCN coating was increased by 3.91 times compared with that of the pure epoxy resin. This study provides new strategies for constructing photoelectric synergistic anticorrosion heterojunction materials.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"208 ","pages":"Article 109439"},"PeriodicalIF":6.5,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144263563","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 review of silica aerogel based thermal insulation coatings: Preparation, properties and applications","authors":"Zhi Li ,&nbsp;Zikang Chen ,&nbsp;Yumin Duan ,&nbsp;Jiahui Chen ,&nbsp;Shengjie Yao ,&nbsp;Longhui Peng ,&nbsp;Weiwang Chen ,&nbsp;Natalia Menshutina ,&nbsp;Miao Liu","doi":"10.1016/j.porgcoat.2025.109449","DOIUrl":"10.1016/j.porgcoat.2025.109449","url":null,"abstract":"<div><div>With the continuous development of human society, the emergence of energy conservation and consumption reduction is becoming increasingly critical. Although traditional insulation materials are widely used, their performance bottlenecks are gradually coming to the fore, such as insufficient durability, single performance and limited thermal insulation property. Therefore, the search for high-performance thermal insulation materials can provide a breakthrough solution. As an important thermal insulation technology, thermal insulating coatings have attracted considerable attention recently. SiO₂ aerogel, a porous material characterized by an internal network structure replete with gas and a solid appearance, accompanied by extremely low density, outstanding thermal insulation capabilities, high porosity, excellent thermal and chemical stability. In engineering, particularly within the realm of thermal insulation coatings, SiO₂ aerogel has been widely integrated into coatings with diverse functionalities, aiming to enhance energy utilization efficiency with substantial economic benefits. Its applications span across building construction, industrial sectors, freight storage, clothing, and aerospace. Notably, recent research has extensively investigated the combination of SiO₂ aerogel with other functional nanoparticles in composite thermal insulation coatings, which exhibited enhanced comprehensive properties, including flame retardancy, corrosion resistance, anti-aging, mechanical strength and adhesion, thereby ensuring more reliable performance in thermal insulation applications. This paper provides a comprehensive review of the preparation methods, properties, applications, and future trends of multifunctional SiO₂ aerogel based thermal insulation coatings, aiming to offer valuable insights to researchers and industry professionals. It is anticipated that this review will stimulate the scientific and engineering communities to further explore innovative SiO₂ aerogel based thermal insulation coatings through nano-technologies, thereby facilitating the industrial-scale production of these advanced materials.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"208 ","pages":"Article 109449"},"PeriodicalIF":6.5,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144241947","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":"High-performance and sustainable clear water-based coatings for outdoor wood protection: A review","authors":"Amin Jorbandian ,&nbsp;Alireza Ashori ,&nbsp;Mehdi Jonoobi","doi":"10.1016/j.porgcoat.2025.109452","DOIUrl":"10.1016/j.porgcoat.2025.109452","url":null,"abstract":"<div><div>Clear water-based coatings have emerged as a promising solution to preserve the natural appearance of wood while enhancing its durability. However, achieving long-term stability in outdoor environments remains a major challenge for commercially available clear coatings. This study explores the potential of nanomaterials in improving the performance of these coatings. Inorganic nanoparticles can enhance UV resistance, transparency, mechanical strength, water repellency, and thermal stability. On the other hand, organic nanomaterials such as nanocellulose offer reinforcement capabilities, thermal stability, and biodegradability. However, challenges such as proper dispersion of nanomaterials in coatings, long-term durability, cost, and environmental and health impacts must be addressed. To overcome these obstacles, synergistic strategies combining various nanomaterials with complementary properties, hybrid nanocomposite systems, surface-modified nanomaterials, and multifunctional nanomaterials have been investigated. Additionally, emerging nanomaterials such as two-dimensional (2D) nanomaterials, self-healing materials, and biomimetic materials present new opportunities for the development of high-performance and sustainable clear wood coatings. This study highlights the importance of interdisciplinary collaborations, comprehensive assessments of environmental and health impacts, and the establishment of appropriate standards and guidelines. The advancement of these coatings can promote the widespread adoption of wood as a low-maintenance, visually appealing, and environmentally sustainable material for outdoor applications.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"208 ","pages":"Article 109452"},"PeriodicalIF":6.5,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144254209","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":"Waterborne acrylic anti-corrosion coatings with different proportions of yttrium oxide/titanium dioxide fillers","authors":"Xiangfeng Meng ,&nbsp;Lihuan Hou ,&nbsp;Zhiping Wang ,&nbsp;Wei Liu ,&nbsp;Huiqing Hao ,&nbsp;Xiaoting Lv ,&nbsp;Junwei An","doi":"10.1016/j.porgcoat.2025.109423","DOIUrl":"10.1016/j.porgcoat.2025.109423","url":null,"abstract":"<div><div>Acrylic resin composite coatings containing different proportions of yttrium oxide/titanium dioxide particles were uniformly brushed on the surface of 2A12 aluminum alloy. A comprehensive study was conducted on the microstructure, structure and electrochemical properties of the deposited coatings to reveal the fundamental effects of the Y₂O₃/TiO₂ addition at different weight ratios. The results indicate that Y₂O₃/TiO₂ have been incorporated into the composite coating. A suitable proportion of Y₂O₃/TiO₂ composite particles is beneficial for forming a flat coating surface with uniform pores and no cracks. The addition of Y₂O₃/TiO₂ reduced the degree of resin curing reaction. The quality of corrosion resistance and the possibility of hydrolysis degradation of composite coatings are fully dependent on pore filling. The corrosion rate and <em>Z</em>-value of the coating with a 1:4 weight ratio of Y₂O₃/TiO₂ reach approximately 8.5 × 10⁻² mm/year and 10⁵ Ωcm², exhibiting the highest corrosion resistance performance.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"208 ","pages":"Article 109423"},"PeriodicalIF":6.5,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144254210","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}