Progress in Organic Coatings最新文献

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Improvement of epoxy coating chemical stability via fluorinated phenyl isocyanate modification: substituent-dependent enhancement in anti-corrosion and anti-aging properties 氟化苯基异氰酸酯改性提高环氧涂料化学稳定性:抗腐蚀和抗老化性能的取代基依赖性增强
IF 7.3 2区 材料科学
Progress in Organic Coatings Pub Date : 2026-04-01 Epub Date: 2026-01-26 DOI: 10.1016/j.porgcoat.2026.109997
Yijian Gao , Keyu Chen , Bingjie Zhou , Chonggang Wu , Zhenyu Chen , Hongyu Cen
{"title":"Improvement of epoxy coating chemical stability via fluorinated phenyl isocyanate modification: substituent-dependent enhancement in anti-corrosion and anti-aging properties","authors":"Yijian Gao ,&nbsp;Keyu Chen ,&nbsp;Bingjie Zhou ,&nbsp;Chonggang Wu ,&nbsp;Zhenyu Chen ,&nbsp;Hongyu Cen","doi":"10.1016/j.porgcoat.2026.109997","DOIUrl":"10.1016/j.porgcoat.2026.109997","url":null,"abstract":"<div><div>Epoxy resin coatings (EP) have maintained a dominant position in the field of corrosion protection, but they also suffer from poor weatherability and high brittleness due to internal stresses arising from rigid molecular chain curing, inherent defects, and chemical oxidation caused by the penetration of corrosive media. These deficiencies lead to aging failure and degradation of protective performance. In this study, a covalent chain-segment redesign strategy is proposed by grafting three fluorinated phenyl isocyanates—4-fluorophenyl isocyanate (4FI), 4-trifluoromethoxyphenyl isocyanate (4TOPI) and 4-trifluoromethylphenyl isocyanate (4TPI) onto the hydroxyl groups (–OH) of EP to enhance backbone chemical stability and to elucidate substituent-dependent reinforcement in anticorrosion and anti-aging performance. The research revealed that all three small-molecule graft-modified coatings (EP-4FI, EP-4TOPI, EP-4TPI) exhibit superior anti-aging performance compared to blank EP coating under various aging conditions, including salt spray, UV irradiation, and chemical immersion. The overall performance ranking is EP-4TPI &gt; EP-4TOPI &gt; EP-4FI, and the impedance modulus of EP-4TPI coated on Q235 carbon steel substrate increased 1–5 orders of magnitude compared to blank EP and remained constant at 10<sup>10</sup> Ω·cm<sup>2</sup> after undergoing all aging tests. Owing to fluorine incorporation and the concomitant reduction of hydrophilic –OH sites, the modified coatings maintain a hydrophobic surface even after aging, thereby effectively suppressing electrolyte permeation. In particular, the CF<sub>3</sub>-substituted 4TPI structure provides enhanced resistance to UV-induced photo-oxidation and chemical corrosion. Quantum chemical calculations further suggest that fluorine-containing segments preferentially interact with corrosive species, delaying their transport toward the metal/coating interface. This work demonstrates an efficient small-molecule grafting approach to simultaneously improve corrosion protection and weathering resistance of epoxy coatings on carbon steel and provides guidance for fluorinated motif selection.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"213 ","pages":"Article 109997"},"PeriodicalIF":7.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146078607","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}
引用次数: 0
Study on the corrosion resistance and antibacterial properties of magnesium alloy MAO polylactic acid coating in simulated body fluid 镁合金MAO聚乳酸涂层在模拟体液中的耐蚀性及抗菌性能研究
IF 7.3 2区 材料科学
Progress in Organic Coatings Pub Date : 2026-04-01 Epub Date: 2026-01-28 DOI: 10.1016/j.porgcoat.2026.110002
Xinhe Wu , Quantong Jiang , Jingjing Wang , Zhenhua Chu , Yandao Chen , Jizhou Duan , Baorong Hou
{"title":"Study on the corrosion resistance and antibacterial properties of magnesium alloy MAO polylactic acid coating in simulated body fluid","authors":"Xinhe Wu ,&nbsp;Quantong Jiang ,&nbsp;Jingjing Wang ,&nbsp;Zhenhua Chu ,&nbsp;Yandao Chen ,&nbsp;Jizhou Duan ,&nbsp;Baorong Hou","doi":"10.1016/j.porgcoat.2026.110002","DOIUrl":"10.1016/j.porgcoat.2026.110002","url":null,"abstract":"<div><div>Magnesium-based alloys are attractive candidates for biodegradable orthopedic implants owing to their excellent biocompatibility and bone-like mechanical properties; however, their excessively rapid corrosion in physiological environments often causes premature loss of mechanical integrity and adverse local reactions, limiting clinical translation. In this study, a micro-arc oxidation (MAO) ceramic layer and an outer polylactic acid (PLA) coating were constructed on a Magnesium alloy, and ZnTe particles were incorporated into the PLA layer at varying concentrations to obtain a ZnTe doped MAO/PLA composite coating with enhanced integrity and antibacterial function. The microstructure, coating morphology, and phase composition were characterized, and corrosion behavior in Hank's simulated body fluid was assessed by open-circuit potential and electrochemical impedance spectroscopy. Results show that the MAO layer forms a strongly adherent oxide barrier while the PLA topcoat effectively seals MAO micro-pores; ZnTe addition further improves coating compactness, leading to markedly increased potential stability and charge-transfer resistance relative to ZnTe-free coatings, indicating superior corrosion resistance. Immersion tests reveal that ZnTe incorporation enhances the buffering capacity of the system, mitigating the pH decrease associated with PLA hydrolysis. Antibacterial assays demonstrate a bactericidal rate exceeding 99% for ZnTe-containing coatings. Collectively, the ZnTe-doped MAO/PLA composite coating provides synergistic corrosion protection and robust antibacterial activity, offering a promising surface-engineering route to improve the long-term reliability of biodegradable magnesium implants.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"213 ","pages":"Article 110002"},"PeriodicalIF":7.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146078605","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}
引用次数: 0
Mechanisms of atomic oxygen resistance in POSS-enhanced fluorinated polyimide and high-frequency insulation stability based on PLS analysis 基于PLS分析的poss增强氟化聚酰亚胺耐原子氧机理及高频绝缘稳定性
IF 7.3 2区 材料科学
Progress in Organic Coatings Pub Date : 2026-04-01 Epub Date: 2026-01-23 DOI: 10.1016/j.porgcoat.2026.109990
Shengrui Zhou , Li Zhang , Guan Wang , Bilal Iqbal Ayubi , Rakhmonov Ikromjon Usmonovich , Junpeng Ji
{"title":"Mechanisms of atomic oxygen resistance in POSS-enhanced fluorinated polyimide and high-frequency insulation stability based on PLS analysis","authors":"Shengrui Zhou ,&nbsp;Li Zhang ,&nbsp;Guan Wang ,&nbsp;Bilal Iqbal Ayubi ,&nbsp;Rakhmonov Ikromjon Usmonovich ,&nbsp;Junpeng Ji","doi":"10.1016/j.porgcoat.2026.109990","DOIUrl":"10.1016/j.porgcoat.2026.109990","url":null,"abstract":"<div><div>Fluorinated polyimide (FPI) is widely used in high-frequency electronics and aerospace insulation applications owing to its low dielectric loss and excellent stability; however, the degradation behavior and regulatory mechanisms of its high-frequency insulation performance after atomic oxygen (AO) erosion remain unclear. In this study, FPI/POSS composite films with different contents of polyhedral oligomeric silsesquioxane (POSS) were prepared. An AO ground-simulated erosion system was employed to evaluate the protective effectiveness of POSS on FPI and its underlying mechanisms. Combined with vacuum high-frequency partial discharge testing and a partial least squares (PLS) regression model, the effects of AO erosion and material structural regulation on the evolution of insulation lifetime were systematically investigated. The results show that pure FPI exhibits pronounced surface roughening and oxidative erosion after AO bombardment, whereas the introduction of POSS induces the in-situ formation of a dense SiO<sub>2</sub> passivation layer, effectively suppressing further polymer etching. Meanwhile, the FPI/POSS system demonstrates a higher discharge inception voltage, lower dielectric loss, and a longer insulation lifetime. This work provides a new perspective for evaluating insulation reliability and optimizing the structural design of polyimide materials for space service environments.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"213 ","pages":"Article 109990"},"PeriodicalIF":7.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146023563","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}
引用次数: 0
Preparation of few-layer MoS2/PTFE synergistic wear-resistant agent and its application in high wear-resistant and adhesion polyimide coatings 少层MoS2/PTFE增效耐磨剂的制备及其在高耐磨附着力聚酰亚胺涂料中的应用
IF 7.3 2区 材料科学
Progress in Organic Coatings Pub Date : 2026-04-01 Epub Date: 2026-01-17 DOI: 10.1016/j.porgcoat.2026.109972
Yunfeng Yang , Weibing Xu , Zhengfa Zhou , Haihong Ma , Fengmei Ren
{"title":"Preparation of few-layer MoS2/PTFE synergistic wear-resistant agent and its application in high wear-resistant and adhesion polyimide coatings","authors":"Yunfeng Yang ,&nbsp;Weibing Xu ,&nbsp;Zhengfa Zhou ,&nbsp;Haihong Ma ,&nbsp;Fengmei Ren","doi":"10.1016/j.porgcoat.2026.109972","DOIUrl":"10.1016/j.porgcoat.2026.109972","url":null,"abstract":"<div><div>Polyimide (PI) exhibits high-temperature resistance and corrosion resistance, making it a high-potential coating substrate. However, for use in automotive motor bearings, its adhesion and wear resistance still require improvement. This study investigated the efficient exfoliation of MoS<sub>2</sub> and combined few-layer MoS<sub>2</sub> with Polytetrafluoroethylene (PTFE) as a synergistic wear-resistant agent, which can be incorporated into PI coatings to improve the wear resistance. It achieved a minimum coefficient of friction (COF) of 0.073 and a wear rate of 0.0554 × 10<sup>−5</sup> mm<sup>3</sup>/(N·m). This result is attributed to the layered structure of few-layer MoS<sub>2</sub> and its synergistic interaction with PTFE. The structure of PI contains numerous ether bonds and highly polar sulfone groups that can bind to metal surfaces. The resulting coating achieves level 0 adhesion (ISO 2409:2020) on metal substrates for bearings, while exhibiting high toughness, impact resistance, and coolant resistance. This work is of great significance to research on high-adhesion coatings and nanoscale synergistic lubrication.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"213 ","pages":"Article 109972"},"PeriodicalIF":7.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146023564","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}
引用次数: 0
Hierarchically distributed nisin/NaCl particles in chitosan-based coatings with long-term antibacterial performance 具有长效抗菌性能的壳聚糖基涂料中分层分布的nisin/NaCl颗粒
IF 7.3 2区 材料科学
Progress in Organic Coatings Pub Date : 2026-04-01 Epub Date: 2026-01-21 DOI: 10.1016/j.porgcoat.2026.109973
Fang-Yu Fan , Jing-Chung Huang , Chia-Chin Wu , Shih-Fu Ou
{"title":"Hierarchically distributed nisin/NaCl particles in chitosan-based coatings with long-term antibacterial performance","authors":"Fang-Yu Fan ,&nbsp;Jing-Chung Huang ,&nbsp;Chia-Chin Wu ,&nbsp;Shih-Fu Ou","doi":"10.1016/j.porgcoat.2026.109973","DOIUrl":"10.1016/j.porgcoat.2026.109973","url":null,"abstract":"<div><div>In this study, a two-step coating technique was employed to fabricate a chitosan-based multilayer film on Ti6Al4V in which nisin/NaCl particles was hierarchically distributed. Nanoscale nisin/NaCl particles adhered to the outer surface of the chitosan layer, while microscale particles were embedded within the coating matrix. Experimental antibacterial evaluation revealed that the coating possessed immediate bactericidal activity, achieving 96.1% inhibition against <em>Staphylococcus aureus</em> (<em>S. aureus</em>) within 24 h and maintaining 95.0% inhibition after 48 h. Furthermore, the hydrophobicity of the coating and nisin-release inhibited bacterial adhesion. The coating had cell viability &gt;80% and exhibited good adhesion on Ti6Al4V (rated according to ASTM 5B), which ensures the safety of implant applications. These results demonstrate that the hierarchical nisin/NaCl-loaded chitosan coating provides a non-cytotoxic and biocompatible antibacterial surface suitable for implant applications.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"213 ","pages":"Article 109973"},"PeriodicalIF":7.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146023626","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}
引用次数: 0
A novel rust stabilization technology for weathering steels - Inspired by the “breathable coating” in the textile industry 一种用于耐候钢的新型防锈技术-灵感来自纺织行业的“透气涂层”
IF 7.3 2区 材料科学
Progress in Organic Coatings Pub Date : 2026-04-01 Epub Date: 2026-01-21 DOI: 10.1016/j.porgcoat.2026.109983
Junyi Gao , Weichen Xu , Binbin Zhang , Rongling Zhang , Yanshuai Wang , Donald Terry Greenfield , Baorong Hou
{"title":"A novel rust stabilization technology for weathering steels - Inspired by the “breathable coating” in the textile industry","authors":"Junyi Gao ,&nbsp;Weichen Xu ,&nbsp;Binbin Zhang ,&nbsp;Rongling Zhang ,&nbsp;Yanshuai Wang ,&nbsp;Donald Terry Greenfield ,&nbsp;Baorong Hou","doi":"10.1016/j.porgcoat.2026.109983","DOIUrl":"10.1016/j.porgcoat.2026.109983","url":null,"abstract":"<div><div>Corrosion resistance of weathering steels highly relies on the stable, uniform and compact rust layer, but it is difficult to form naturally and quickly, because the complication and variation of the environment will disturb the process. Rust stabilization technologies are necessary, while the current methods show limitations on cost-effectiveness, efficiency, easy-processability and eco-friendliness. Inspired by the idea of breathable coating in textile industry which allows water vapor to pass but blocks liquid water, a waterborne polyurethane (WPU) coating incorporated with custom-synthesized SiO<sub>2</sub> hollow nanoparticles has been developed in this work. The nanoparticles possess meso-pores on the shell and hollow structure in the middle, able to provide channels for water vapor, oxygen and chloride. Such coating allows rust deposition beneath it and acts as a temporary shelter against the external environment at the initial stage. Different coating thicknesses (10 μm to 40 μm) with different contents of SiO<sub>2</sub> nanoparticles (1 to 2 wt%) have been investigated on Q420 weathering steel, and the thickness of 10 μm and 2 wt% SiO<sub>2</sub> nanoparticles have been identified as the best option. Blistering and cracking resulted from rust expansion do not matter because a protective rust layer can form before the failure. This novel technology is promising in the perspectives of efficiency, cost, eco-friendliness and monitorability.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"213 ","pages":"Article 109983"},"PeriodicalIF":7.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146023682","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}
引用次数: 0
Bio-based teak extractive coating: An eco-friendly alternative to commercial light stabilizers for wood photostabilization 生物基柚木萃取涂料:用于木材光稳定的商业光稳定剂的环保替代品
IF 7.3 2区 材料科学
Progress in Organic Coatings Pub Date : 2026-04-01 Epub Date: 2026-01-02 DOI: 10.1016/j.porgcoat.2025.109920
Chenggong Gao , Yun Liu , Xiaohan Li , Yuntao Hong , Xinjie Cui , Junji Matsumura
{"title":"Bio-based teak extractive coating: An eco-friendly alternative to commercial light stabilizers for wood photostabilization","authors":"Chenggong Gao ,&nbsp;Yun Liu ,&nbsp;Xiaohan Li ,&nbsp;Yuntao Hong ,&nbsp;Xinjie Cui ,&nbsp;Junji Matsumura","doi":"10.1016/j.porgcoat.2025.109920","DOIUrl":"10.1016/j.porgcoat.2025.109920","url":null,"abstract":"<div><div>Wood is susceptible to discoloration, cracking, and photochemical degradation under ultraviolet (UV) exposure. As most commercially available photostabilizers are synthetic and may present environmental risks, developing natural alternatives is crucial. The objective of this study was to assess teak (<em>Tectona grandis</em>) extractive as a natural photostabilizer and compare its photostabilization performance with that of a commercial hindered amine light stabilizer (HALS) on fast-growing wood. Accelerated UV exposure experiments were conducted on four groups of Chinese fir (<em>Cunninghamia lanceolata</em>): control (C), HALS-treated (HALS), teak extractive-treated (EtE), and a combined HALS-teak extractive treatment (HEtE). The evolution of surface color, gloss, microscopic morphology, and chemical structure during UV exposure was investigated. Additionally, the chemical composition of the extractives before and after exposure was analyzed to elucidate their photostabilization mechanism. After 384 h of UV exposure, the total color difference (ΔE) of the control group reached 35.79, whereas the HALS, EtE, and HEtE groups exhibited reductions of 22.9 %, 63.1 %, and 70.7 %, respectively. The EtE and HEtE groups showed significantly reduced surface damage and lignin photodegradation. Mechanistic analysis revealed that 2-methylanthraquinone in the extractives acted as a UV absorber, while squalene contributed to free radical-scavenging activity. After UV exposure, the relative contents of these compounds decreased by 52 % and 86 %, respectively, confirming their key roles in the photostabilization process. This study demonstrates that teak extractives, when applied as a wood coating, can effectively suppress lignin photodegradation in wood substrates. Its photostabilizing performance exceeds that of conventional HALS, highlighting its potential as an eco-friendly natural photostabilizer.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"213 ","pages":"Article 109920"},"PeriodicalIF":7.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145886007","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}
引用次数: 0
Enhancing water-lubricated tribological performance of stainless steel with nano-MoS₂-PEG6000 modified epoxy resin coatings 纳米mos 2 -PEG6000改性环氧树脂涂层提高不锈钢水润滑摩擦学性能
IF 7.3 2区 材料科学
Progress in Organic Coatings Pub Date : 2026-04-01 Epub Date: 2026-01-02 DOI: 10.1016/j.porgcoat.2025.109917
Yanfei Fang , Peiyan Cheng , Xiangrong Li , Tingping Lei , Shaogan Ye
{"title":"Enhancing water-lubricated tribological performance of stainless steel with nano-MoS₂-PEG6000 modified epoxy resin coatings","authors":"Yanfei Fang ,&nbsp;Peiyan Cheng ,&nbsp;Xiangrong Li ,&nbsp;Tingping Lei ,&nbsp;Shaogan Ye","doi":"10.1016/j.porgcoat.2025.109917","DOIUrl":"10.1016/j.porgcoat.2025.109917","url":null,"abstract":"<div><div>In water-lubricated conditions, surface modification techniques that enhance the formation of water-lubricating films through surface treatment play a significant role. This paper proposes a method of applying a modified epoxy resin coating on stainless steel to improve its tribological performance under water lubrication. First, nano-MoS₂-PEG6000 fillers were prepared via a hydrothermal method. They were uniformly mixed into the epoxy resin and coated onto the surfaces of stainless steel and slipper pairs. Tribological experiments were conducted using a slipper-on-disk configuration, followed by characterization. Experimental results demonstrate that the nano-MoS₂-PEG6000 modified epoxy resin coating exhibits excellent water-lubrication properties, with the friction coefficient reduced by 66.4 % and the wear rate decreased by 99.2 %. The mechanism was revealed: MoS₂ reduces the shear force between rough peak contacts, while PEG6000 possesses strong hydration capacity, forming a stable water-lubricating film on the surface, thereby reducing friction. This study provides a novel approach for the tribological design of slipper pairs in water hydraulic pumps.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"213 ","pages":"Article 109917"},"PeriodicalIF":7.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145886067","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}
引用次数: 0
Epoxy resin/fluorinated multi-walled carbon nanotube composite photothermal superhydrophobic coatings for anti-icing applications 环氧树脂/氟化多壁碳纳米管复合光热超疏水防冰涂料
IF 7.3 2区 材料科学
Progress in Organic Coatings Pub Date : 2026-04-01 Epub Date: 2025-12-31 DOI: 10.1016/j.porgcoat.2025.109912
Qin Huang , Yaofeng Chen , Chenyu Jia , Kaijun Yang , Hailong Wang , Jinpeng Zhu
{"title":"Epoxy resin/fluorinated multi-walled carbon nanotube composite photothermal superhydrophobic coatings for anti-icing applications","authors":"Qin Huang ,&nbsp;Yaofeng Chen ,&nbsp;Chenyu Jia ,&nbsp;Kaijun Yang ,&nbsp;Hailong Wang ,&nbsp;Jinpeng Zhu","doi":"10.1016/j.porgcoat.2025.109912","DOIUrl":"10.1016/j.porgcoat.2025.109912","url":null,"abstract":"<div><div>The accumulation of ice and frost in cold environments severely disrupts the normal operation of equipment, making it essential to develop functional surfaces that can delay ice/frost formation and enable rapid removal. Unlike traditional superhydrophobic coatings that rely solely on passive ice delay, this study proposes a novel design integrating both passive ice-delay and active photothermal deicing functionalities. The strategy involves incorporating fluorinated multi-walled carbon nanotube (f-MWCNTs) into an epoxy (EP) matrix to form a hierarchical rough structure while exploiting their strong light absorption capability to impart photothermal responsiveness. The results indicate that after optimizing the filler-to-resin ratio, the coating achieved a water contact angle (WCA) of 156°, a water sliding angle (WSA) of 3.5°, and a light absorption rate of up to 97.49 %, demonstrating both excellent superhydrophobicity and high light absorption properties; at −10 °C, the icing delay time is extended by more than four times compared to the substrate, which is primarily attributed to the air layers within the rough structure effectively retarding heat transfer. At room temperature, the surface temperature increased by 30 °C within 300 s under 1.0 sun irradiation, while under −10 °C, the same irradiation achieved complete ice removal within 6 min, attributable to the exceptional photothermal conversion efficiency of MWCNTs. Moreover, the coating maintained its superhydrophobicity after water impact, sand impact, and tape-peeling tests, demonstrating good mechanical durability, which is primarily attributed to the robust cross-linked network formed between the f-MWCNTs and EP. Overall, the coating provides a promising strategy for anti-icing applications in power transmission, aerospace, and wind energy systems.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"213 ","pages":"Article 109912"},"PeriodicalIF":7.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145886066","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}
引用次数: 0
A novel eco-friendly and bifunctional ionic liquid with superior corrosion and microbial inhibition for L245 steel in CO₂-saturated oilfield environment 一种新型的生态友好型双功能离子液体,具有良好的腐蚀和微生物抑制作用,适用于CO 2饱和油田环境中的L245钢
IF 7.3 2区 材料科学
Progress in Organic Coatings Pub Date : 2026-04-01 Epub Date: 2026-01-13 DOI: 10.1016/j.porgcoat.2026.109956
Miao Zhang , Jian Wang , Lincai Peng , Wenhui Yang , Tianbao Zhao , Baoshu Chen , Zhengping Zhao , Ning Dang
{"title":"A novel eco-friendly and bifunctional ionic liquid with superior corrosion and microbial inhibition for L245 steel in CO₂-saturated oilfield environment","authors":"Miao Zhang ,&nbsp;Jian Wang ,&nbsp;Lincai Peng ,&nbsp;Wenhui Yang ,&nbsp;Tianbao Zhao ,&nbsp;Baoshu Chen ,&nbsp;Zhengping Zhao ,&nbsp;Ning Dang","doi":"10.1016/j.porgcoat.2026.109956","DOIUrl":"10.1016/j.porgcoat.2026.109956","url":null,"abstract":"<div><div>The oil and gas industry suffers severe risks from the synergistic damage of CO₂ corrosion and microbiologically influenced corrosion. However, traditional separate application of corrosion inhibitors and biocides faces drawbacks like chemical incompatibility, high costs and environmental pollution. To address this challenge, an eco-friendly ionic liquid, N-benzyl-1-((4,6-diamino-1,3,5-triazin-2-yl) amino)-3-mercapto-1-oxopropan-2-aminium (MC-B), was synthesized from low-cost cysteine and melamine via streamlined processes. MC-B exhibited prominent synergistic corrosion inhibition and antimicrobial performance based on a combination of electrochemical measurements, surface characterizations and molecular simulations. Endowed with abundant amino groups, MC-B presented high adsorption energy on steel surfaces, forming a dense protective film. At an optimal concentration of 25 ppm, it achieved a corrosion inhibition efficiency of up to 97.51% via mixed-type inhibition mechanism, and reduced both sessile and planktonic <em>D. nigrificans</em> cells by over two logarithmic units. This research offers a green, high-efficiency solution for the synergistic prevention and control of oilfield pipeline corrosion and microbial contamination, with considerable potential for industrial application.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"213 ","pages":"Article 109956"},"PeriodicalIF":7.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145978400","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}
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