Progress in Organic Coatings最新文献_第2页

Bio-based poly(ester-urethane) coatings for paper: Effect of cutin oligoester esterification degree on functional properties 纸用生物基聚（酯-聚氨酯）涂料：角质寡酯酯化程度对功能性能的影响

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-04-01 Epub Date: 2026-01-05 DOI: 10.1016/j.porgcoat.2026.109946

Elena Buratti , Andrea Odoardo , Andrea D'Iorio , Matteo Calosi , Serena Doni , Tommaso Barbieri , Andrea Balbo , Monica Bertoldo

The growing demand for sustainable alternatives to petroleum-based packaging materials has renewed interest in paper substrates. Cutin, a natural polyester found in plant cuticle, offers promising properties such as hydrophobicity and low gas permeability, making it an appealing component to formulate paper coatings. In this study, poly(ester-urethane) (PU) coatings derived from cutin extracted from tomato peels were investigated as sustainable barrier layers. The synthesis was accomplished in two steps: cutin monomers obtained by a hydrolytic extraction were at first esterified with 1,4-butanediol and then polymerized by addition with isophorone diisocyanate. Importantly, the reaction parameters, particularly the reaction time in the first esterification step, were systematically optimized to obtain three formulations (PU30, PU38, PU50) with distinct esterification degrees (30, 38, and 50 %, respectively). The thermal stability by TGA analysis of the resulting PUx was little affected by the preparation procedure, while the glass transition temperature (Tg) was found to decrease of several degrees when the esterification degree increased. All the three formulations could be applied onto two different paper substrates: a standard paper for printing (Pp) and a single face coated paper (Gp) for packaging application. SEM analysis showed superior coverage and adhesion on Gp, and barrier tests confirmed improved resistance to water and grease, especially with PU30. Biodegradability and recyclability assessments demonstrated that PU30 maintained a favorable balance between functional performance and environmental compatibility, in contrast to PU38 and PU50, which significantly hindered these properties. Overall, the results highlight the potential of PU30 coatings as a viable, bio-based solution for enhancing paper packaging sustainability.

对石油基包装材料的可持续替代品的需求不断增长，重新引起了人们对纸质基材的兴趣。角质层是一种在植物角质层中发现的天然聚酯，具有疏水性和低透气性等良好性能，是造纸涂料的理想成分。本研究研究了从番茄皮中提取的角质层中提取聚（酯-聚氨酯）（PU）涂层作为可持续屏障层。通过水解萃取得到角质单体，首先与1,4-丁二醇酯化，然后与异佛尔酮二异氰酸酯加成聚合。重要的是，系统优化了反应参数，特别是第一步的反应时间，得到了三种不同酯化度（分别为30%、38%和50%）的配方（PU30、PU38、PU50）。通过TGA分析得到的PUx的热稳定性受制备工艺的影响不大，但随着酯化程度的增加，玻璃化转变温度（Tg）降低了几度。所有这三种配方都可以应用于两种不同的纸基材上：用于印刷的标准纸（Pp）和用于包装应用的单面涂布纸（Gp）。扫描电镜分析显示，Gp的覆盖度和附着力都很好，屏障测试也证实了Gp对水和油脂的抵抗力有所提高，尤其是PU30。生物降解性和可回收性评估表明，PU30在功能性能和环境相容性之间保持了良好的平衡，而PU38和PU50则明显阻碍了这些性能。总的来说，研究结果突出了PU30涂层作为一种可行的生物基解决方案的潜力，可以提高纸包装的可持续性。

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引用次数: 0

A durable, superhydrophobic TiO2/fluorinated graphene composite coating for enhanced antibiofouling and mechanical stability 一种耐用的超疏水TiO2/氟化石墨烯复合涂层，用于增强抗污垢和机械稳定性

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-04-01 Epub Date: 2026-01-08 DOI: 10.1016/j.porgcoat.2026.109953

Jing Xu , Wissal Mahfoudi , JunYan Yang , Jiadi Lian , Tie Zhang

The formation of surface biofilms poses a major threat in biomedical and industrial environments, leading to chronic infections, device malfunction, and the spread of antibiotic resistance genes. To prevent initial microbial adhesion and biofilm development, the design of durable antibacterial and antifouling surfaces is therefore essential. In this study, a superhydrophobic titanium dioxide–fluorinated graphene (TiO₂@FG, abbreviated as TFG) composite coating was fabricated via a simple one-step spraying technique. Leveraging the strong particle-adsorption capability of the FG surface, the issue of metal nanoparticle aggregation within the coating was effectively addressed. The resulting TFG coating possesses ultra-low surface energy and a stable micro-nano hierarchical architecture, which synergistically confer long-term antifouling efficacy. Quantitative assessments revealed a 77.9% reduction in protein adsorption after 12 h and sustained bacterial adhesion resistance below 20% even after 120 h on the TFG surface, compared to unmodified stainless steel. Furthermore, the coating exhibited exceptional mechanical robustness, retaining a water contact angle above 150° and an adhesion force under 30 μN after repeated abrasion. Under a friction test at 12 MPa for 30 min, the low friction coefficient stabilized at 0.08. These superior properties are attributed to the synergistic effect between TiO₂ “pinning” and FG self-lubrication within the surface-hierarchical microstructure. The TFG coating a offers promising pathway toward the development of durable, non-fouling, and mechanically stable surfaces for biomedical implants, food-contact applications, and hygiene-critical public facilities.

表面生物膜的形成对生物医学和工业环境构成了重大威胁，导致慢性感染、设备故障和抗生素耐药基因的传播。为了防止最初的微生物粘附和生物膜的发展，耐用的抗菌和防污表面的设计是必不可少的。在本研究中，通过简单的一步喷涂技术制备了超疏水二氧化钛-氟化石墨烯（TiO2@FG，简称TFG）复合涂层。利用FG表面强大的颗粒吸附能力，有效解决了金属纳米颗粒在涂层内聚集的问题。所得的TFG涂层具有超低表面能和稳定的微纳分层结构，协同作用赋予长期防污效果。定量评估显示，与未改性的不锈钢相比，TFG表面在12 h后蛋白质吸附减少77.9%，即使在120 h后细菌粘附阻力仍低于20%。此外，涂层表现出优异的机械坚固性，在反复磨损后，涂层的水接触角保持在150°以上，附着力保持在30 μN以下。在12 MPa、30 min的摩擦试验中，低摩擦系数稳定在0.08。这些优异的性能归因于TiO2“钉住”和FG自润滑在表面分层微观结构中的协同作用。TFG涂层为生物医学植入物、食品接触应用和卫生关键公共设施的耐用、无污垢和机械稳定表面的开发提供了有希望的途径。

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引用次数: 0

Multilayer composite yarn with graphene and carbon nanotubes for electrothermal-induced thermochromism 石墨烯和碳纳米管多层电致热变色复合纱

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-04-01 Epub Date: 2026-01-22 DOI: 10.1016/j.porgcoat.2026.109992

Zichen Zheng , Minjie Xu , Jinfeng Wang

To endow flexible electronics with multifunctionality, we report a hierarchical strategy that synergizes structural design with functional integration. Graphene (Gr) and multi-walled carbon nanotubes (MWCNTs) were judiciously chosen as dual conductive fillers and co-assembled with thermochromic pigments to yield composite conductive yarns capable of both electrothermal regulation and electrochromic behavior. The Gr/MWCNT hybrid network outperforms either constituent alone, cutting resistance by as much as 69.5%. Under a 4 V bias, the equilibrium temperature differential among samples reaches 4.4 °C, and the optimal ink formulation is achieved at a Gr: MWCNT mass ratio of 2:1.

Employing a 30-tex fine-yarn architecture with double-layer wrapping, cotton fibers fully encapsulate the conductive core, while the incorporation of 25 wt% waterborne polyurethane (WPU) imparts superior film-formability. The resulting electrochromic composite yarn (ECYs-CCY) exhibits a tensile strength of 14.94 N and an elongation at break of 24.87%. The ECYs-SGCCY variant reaches steady-state temperature within 20 s and recovers to ambient within 15 s. After 200 mechanical deformation cycles and 7 electrothermal ON–OFF cycles, its electrothermal performance remains unaltered. Reversible, rapid electrochromic switching is retained, with both surface colour and chromic stability impervious to repeated deformation. This work establishes a robust material platform and scalable fabrication route for next-generation electrothermal and smart textiles.

为了使柔性电子具有多功能性，我们报告了一种结构设计与功能集成协同的分层策略。选择石墨烯（Gr）和多壁碳纳米管（MWCNTs）作为双导电填料，并与热致变色颜料共组装，得到既具有电热调节性能又具有电致变色性能的复合导电纱线。Gr/MWCNT混合网络优于单独的任何一种成分，可将阻力降低69.5%。在4 V偏置下，样品间的平衡温差达到4.4℃，当Gr: MWCNT质量比为2:1时，墨水配方达到最佳。采用30特级细纱结构，双层包裹，棉纤维完全封装导电芯，而加入25%水性聚氨酯（WPU）赋予卓越的成膜性。电致变色复合纱线（ECYs-CCY）的抗拉强度为14.94 N，断裂伸长率为24.87%。ECYs-SGCCY变体在20秒内达到稳态温度，并在15秒内恢复到环境温度。经过200次机械变形循环和7次电热ON-OFF循环，其电热性能保持不变。可逆的，快速的电致变色开关保留，表面颜色和铬稳定性不受反复变形的影响。这项工作为下一代电热和智能纺织品建立了一个强大的材料平台和可扩展的制造路线。

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引用次数: 0

Lithium composite grease reinforced polyurea composite coating toward anti-friction and impact wear resistance 锂复合润滑脂增强聚脲复合涂层向着抗摩擦、抗冲击耐磨方向发展

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-04-01 Epub Date: 2026-01-12 DOI: 10.1016/j.porgcoat.2026.109959

Mengying Zhao , Xiaoqiang Fan , Zhongpan Zhang , Huixian Yang , Zhizhan Dong , Xiaoguang Sun , Minhao Zhu

Introducing self-lubricating microdrops into a resin matrix is an effective strategy for developing advanced materials that combine efficient lubrication with durable impact wear resistance. In this paper, we prepared self-lubricating composite coatings (PU/LCG) by dispersing lithium composite grease (LCG) microdrops into a polyurea (PU) resin matrix. X-ray micro-computed tomography (micro-CT) revealed a three-dimensional network of PU-encapsulated LCG microdrops, which significantly enhanced lubrication efficiency and reduced oil depletion. The PU/LCG-10% coating showed dramatically improved tribological performance, with a 90.6% lower coefficient of friction and a 79.8% lower wear rate than the pure PU coating. Homogeneously dispersed, optimally sized LCG microdrops enable responsive oil release, forming a lubricating film at the friction interface. The PU/LCG-10% coating also exhibited high toughness (8.11 MJ/m³) and a minimal impact wear track diameter (1.09 mm), indicating effective resistance to operational impact wear. Impact wear resistance arises from energy absorption and stress dispersion during oil release, mitigating plastic deformation. This synergistic design makes PU/LCG coatings promising for various self-lubricating mechanical systems.

在树脂基体中引入自润滑微滴是开发先进材料的有效策略，该材料结合了有效的润滑和持久的抗冲击磨损性。本文将锂复合润滑脂（LCG）微滴分散到聚脲（PU）树脂基体中，制备了自润滑复合涂层（PU/LCG）。x射线微计算机断层扫描（micro-CT）显示了pu包封LCG微滴的三维网络，显著提高了润滑效率，减少了油的损耗。与纯PU涂层相比，PU/LCG-10%涂层的摩擦系数降低了90.6%，磨损率降低了79.8%。均匀分散、最佳尺寸的LCG微滴能够快速释放油，在摩擦界面形成润滑膜。PU/LCG-10%涂层还表现出高韧性（8.11 MJ/m3）和最小冲击磨损径（1.09 mm），表明其具有有效的抗操作冲击磨损能力。冲击耐磨性源于释放油过程中的能量吸收和应力分散，减轻了塑性变形。这种协同设计使PU/LCG涂层适用于各种自润滑机械系统。

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引用次数: 0

One-pot facile synthesis of TiO2 hollow microspheres via photo-polymerization for thermal-insulation coatings 光聚合法制备保温涂料用TiO2空心微球

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-04-01 Epub Date: 2026-01-14 DOI: 10.1016/j.porgcoat.2026.109967

Zizhao Li , Chijie Guo , Yu Chen , Yao Gu , Ren Liu , Jing Luo

In this work, a facile and rapid one-pot strategy combining photopolymerization with phase separation was developed for the preparation of TiO₂@polymer hollow microspheres (TiO₂@PHMS), designed as multifunctional fillers for high-performance thermal-insulation coatings. By systematically optimizing the efficiency of photo-initiator and tuning the surface hydrophobicity of TiO₂ particles, well-defined hollow microspheres with a robust polymer shell embedded with TiO₂ were successfully fabricated at ambient temperature within several minutes. The resulting TiO₂@PHMS endowed the composite coating with a superior thermal insulation capability through a dual mechanism: the hollow core provides a thermal barrier, while the embedded TiO₂ offers strong solar reflection. Under optimal conditions, the coating formulated with TiO₂@PHMS exhibited a 74% higher solar reflectance and an almost 50% lower thermal conductivity compared to pure resin coating. This synergistic effect of thermal barrier and solar reflection resulted in a maximum temperature difference (ΔT) of 22.4 °C in a simulated insulation test. This study presents an energy-efficient and scalable method for producing advanced fillers for next-generation energy-saving and durable architectural coatings.

在这项工作中，开发了一种结合光聚合和相分离的简单快速的一锅策略，用于制备TiO2@polymer中空微球（TiO2@PHMS），该微球被设计为高性能隔热涂层的多功能填料。通过系统地优化光引发剂的效率和调整TiO2颗粒的表面疏水性，在几分钟内成功地在室温下制备了具有坚固聚合物外壳的空心微球。由此产生的TiO 2 @PHMS通过双重机制赋予复合涂层优越的隔热能力：空心核心提供热障，而嵌入的TiO 2提供强大的太阳反射。在最佳条件下，与纯树脂涂层相比，TiO2@PHMS配制的涂层的太阳反射率提高了74%，导热系数降低了近50%。在模拟隔热测试中，热障和太阳反射的协同效应导致最大温差（ΔT）为22.4°C。本研究提出了一种节能和可扩展的方法，用于生产下一代节能和耐用建筑涂料的先进填料。

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引用次数: 0

Thermally induced crystallinity modulation in polycaprolactone reinforced epoxy coating for enhanced tribological performance 热诱导结晶度调制聚己内酯增强环氧涂层的摩擦学性能

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-04-01 Epub Date: 2026-01-10 DOI: 10.1016/j.porgcoat.2025.109923

Yang Ou , Yifan Fang , Sirui Han , Chen Liu , Long Wang , Dongsheng Li , Feng Zhou , Jianxi Liu

Epoxy protective coatings have garnered significant attention due to their cost-effectiveness, ease of application, and tunable properties for protecting diverse substrates. However, their broader application and long-term performance are limited by inherent brittleness and suboptimal tribological properties of epoxy resins. In this study, we addressed these challenges by developing a composite coating through strategic incorporation of polycaprolactone (PCL) into epoxy resin followed by controlled thermal treatment. The crystallinity of PCL was regulated by systematically optimizing thermal treatment parameters, including temperature, holding duration, and cooling rate. The flexible PCL molecular chains enhance toughness through energy dissipation via chain slippage, while the crystalline domains increase surface hardness and reduce adhesive wear. Specifically, at the optimal thermal treatment temperature of 140 °C, the PCL/EP coating achieved an ideal mechanical property, demonstrating a reduced coefficient of friction of 0.11 (83.1 % reduction) and an extremely low wear rate of 1.17 × 10⁻⁵ mm³·N⁻¹·m⁻¹ (99.6 % reduction). This work presents a strategy for improving the tribological performance of epoxy coatings using PCL. The superior tribological performance of the self-lubricating coating makes it suitable for a wide range of engineering applications, with the potential for extended durability.

环氧保护涂料因其成本效益，易于应用和可调的性能而受到广泛关注，可保护各种基材。然而，环氧树脂固有的脆性和不理想的摩擦学性能限制了它们的广泛应用和长期性能。在这项研究中，我们通过将聚己内酯（PCL）战略性地掺入环氧树脂中，然后进行受控热处理，开发了一种复合涂层，解决了这些挑战。通过系统优化热处理参数，包括温度、保温时间和冷却速度来调节PCL的结晶度。柔性PCL分子链通过链滑移的能量耗散来提高韧性，而晶体域增加表面硬度并减少粘接磨损。具体来说，在140°C的最佳热处理温度下，PCL/EP涂层获得了理想的力学性能，其摩擦系数降低了0.11（降低83.1%），磨损率极低，为1.17 × 10−5 mm3·N−1·m−1（降低99.6%）。本文提出了一种改进环氧树脂涂层摩擦学性能的方法。自润滑涂层优越的摩擦学性能使其适用于广泛的工程应用，具有延长耐用性的潜力。

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引用次数: 0

Metal-organic frameworks-based smart anti-corrosion composite coatings: Recent advances, mechanisms, and future perspectives 基于金属有机框架的智能防腐复合涂层：最新进展、机理和未来展望

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-04-01 Epub Date: 2026-01-06 DOI: 10.1016/j.porgcoat.2025.109902

Xueming Sun , Jiahong Wei , Wenkai Cao , Weihua Li

Metal corrosion poses a major threat to industrial safety and economic sustainability. Micropores and cracks in conventional protective coatings cause localized failure of the coatings, thus, there is an urgent need for smart anti-corrosion coatings that go beyond the limitations of conventional protection. Metal-organic frameworks (MOFs) are regarded as ideal materials for constructing intelligent anti-corrosion composite coatings due to their tunable porosity, rich structural diversity, and excellent functional adaptability. In this paper, we systematically explore the dual passive/active protection mechanisms realized by MOFs-based smart anti-corrosion composite coatings, review recent research advances, including active/passive synergistic protective composite coatings, multifunctional systems (e.g., superhydrophobic self-cleaning and anti-corrosion composite coatings, self-warning and anti-corrosion composite coatings, anti-biofouling and anti-corrosion composite coatings, anti-icing and anti-corrosion composite coatings). Furthermore, this article also discusses a series of challenges that MOFs encounter in their applications, including stability, scale-up production, smart response composite coatings, green sustainability optimization, and multiple functions synergy. Finally, this paper suggests that future research should integrate multiple disciplinary approaches such as materials science, chemical engineering, and artificial intelligence to facilitate the transition of MOF coatings from the laboratory to practical applications, thereby providing a new paradigm for the development of a new generation of metal corrosion protection technologies.

金属腐蚀对工业安全和经济可持续性构成重大威胁。传统防护涂层中存在的微孔和微裂纹会导致涂层局部失效，因此迫切需要一种超越传统防护局限的智能防腐涂层。金属有机骨架（MOFs）具有孔隙度可调、结构多样性丰富、功能适应性强等优点，是构建智能防腐复合涂层的理想材料。本文系统地探讨了基于mofs的智能防腐复合涂层实现的双被动/主动保护机制，综述了近年来的研究进展，包括主动/被动协同防护复合涂层、多功能系统（如超疏水自清洁与防腐复合涂层、自预警与防腐复合涂层、抗生物结垢与防腐复合涂层等）。防冰、防腐复合涂料)。此外，本文还讨论了mof在其应用中遇到的一系列挑战，包括稳定性、规模化生产、智能响应复合涂层、绿色可持续性优化和多种功能协同。最后，本文建议未来的研究应整合材料科学、化学工程、人工智能等多学科方法，促进MOF涂层从实验室向实际应用的过渡，从而为新一代金属防腐技术的发展提供新的范式。

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引用次数: 0

A crosslinked amphiphilic degradable antifouling coating with long-lasting underwater stability and controlled release of isothiazolinone 交联两亲可降解防污涂料，具有持久的水下稳定性和控制异噻唑啉酮的释放

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-04-01 Epub Date: 2026-01-06 DOI: 10.1016/j.porgcoat.2026.109945

Xiaoyue Liang , Chunju He

Self-polishing marine antifouling coatings, limited by the passive surface renewability and uncontrollable release of biocides, suffer from scarce static long-term fouling resistance. Herein, a multifunctional antifouling coating is developed by the chemically cross-linking of isothiazolinone-functionalized polycaprolactone derivative with triethoxysilyl-functionalized amphiphilic copolymer. The resulting coating enhances its resistance to P. tricornutum attachment by 99.9 % compared to the commercial self-polishing coating through integrating two antifouling modes. The chemically heterogeneous and nanoscale complex morphology surface formed by the amphiphilic component inhibits the initial adhesion of fouling in passive-static mode. Meanwhile, the self-renewable surface formed by the spontaneous degradation of the coating detaches fouling and controlled release of isothiazolinone kills fouling organisms in active-dynamic mode. And the cumulative release amount of antifoulants is only 1/20 of that introduced by physical doping, thus significantly reducing environmental hazards. More importantly, the resulting coating still exhibits excellent antifouling performance even after degradation. This work presents a novel synergistic strategy for sustainable surface protection against biofouling, paving the way for next-generation antifouling marine coatings.

船舶自抛光防污涂料受表面被动再生性和杀菌剂释放不可控的限制，缺乏长期的静态耐污能力。本发明利用异噻唑啉酮功能化聚己内酯衍生物与三乙氧基基功能化两亲共聚物的化学交联，制备了一种多功能防污涂料。通过集成两种防污模式，所得涂层对三角藻附着的抵抗力比商用自抛光涂层提高了99.9%。两亲性组分形成的化学不均匀的纳米级复杂形貌表面抑制了污垢在被动静态模式下的初始粘附。同时，涂层自发降解形成的自再生表面使污垢脱落，异噻唑啉酮的可控释放以主动-动态模式杀死污垢生物。而且抗污剂的累积释放量仅为物理掺杂引入的1/20，显著降低了环境危害。更重要的是，所得涂层即使在降解后仍表现出优异的防污性能。这项工作提出了一种新的协同策略，用于可持续的表面保护，防止生物污染，为下一代防污船舶涂料铺平了道路。

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引用次数: 0

Liquid-like surface of waterborne polyurethane as a dual-function anti-smudge and anti-corrosion coating 水性聚氨酯液状表面，作为一种双功能防污、防腐蚀涂料

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-04-01 Epub Date: 2026-01-05 DOI: 10.1016/j.porgcoat.2025.109941

Yan Bao, Chuang Fu, Wenbo Zhang, Renhao Li

Liquid-like surfaces (LLS), as novel bioinspired interfacial material, overcome the limitations of traditional superhydrophobic surfaces (SHPS) and slippery liquid-infused porous surfaces (SLIPS), which rely excessively on micro-nano structures or external lubricants. This study utilizes NP-GLIDE (nano-pools of a grafted liquid ingredient for dewetting enablement) technology to construct LLS on a waterborne polyurethane (WPU) substrate, endowing the surface with excellent anti-smudge and anti-corrosion properties. The coating was synthesized by covalent grafting polydimethylsiloxane (PDMS) onto the polyurethane backbone, followed by dual crosslinking using cellulose acetate butyrate (CAB) as an internal cross-linker and hexamethoxymethylmelamine (HMMM) as an external crosslinker. This process significantly reduces the surface energy of the coating from 50.87 mJ/m² to 23.61 mJ/m², while achieving a maximum tensile strength of 53.0 MPa and an elongation at break of 469 %. The optimized coating exhibits a water sliding angle (SA) and contact angle hysteresis (CAH) of approximately 18.5° and 7.5°, respectively, which can repel water, oil, coffee, and ink while maintaining a high optical transmittance of over 90 %. Furthermore, the coating demonstrates outstanding corrosion resistance in neutral salt spray (NSS) tests. This study presents a WPU with a liquid-like surface that combines liquid repellency, mechanical resilience, and chemical stability, making it suitable for various industrial applications.

类液体表面（LLS）作为一种新型的仿生界面材料，克服了传统的超疏水表面（SHPS）和注入液体的光滑多孔表面（slip）过分依赖微纳结构或外部润滑剂的局限性。本研究利用NP-GLIDE（一种用于脱湿的接枝液体成分纳米池）技术在水性聚氨酯（WPU）基材上构建LLS，使其表面具有优异的抗污和抗腐蚀性能。采用共价接枝聚二甲基硅氧烷（PDMS）在聚氨酯骨架上，以乙酸丁酸纤维素（CAB）为内交联剂，六聚甲氧基甲基三聚氰胺（HMMM）为外交联剂，进行双交联制备涂层。该工艺将涂层的表面能从50.87 mJ/m2显著降低到23.61 mJ/m2，同时获得了53.0 MPa的最大抗拉强度和469%的断裂伸长率。优化后的涂层的水滑动角（SA）和接触角滞后（CAH）分别约为18.5°和7.5°，可以排斥水、油、咖啡和墨水，同时保持90%以上的高透光率。此外，该涂层在中性盐雾（NSS）试验中表现出优异的耐腐蚀性。本研究提出了一种具有液体状表面的WPU，它结合了液体排斥性、机械弹性和化学稳定性，使其适合各种工业应用。

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引用次数: 0

Bifunctional inhibitors of benzotriazole-loaded Ce-MOFs advanced anti-corrosion of epoxy coating 负载苯并三唑的双功能抑制剂增强环氧涂层的防腐性能

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-04-01 Epub Date: 2026-01-10 DOI: 10.1016/j.porgcoat.2026.109952

Sirui Han , Cheng Ke , Yang Wu , Bo Yu , Xianzong Wang , Long Wang , Dongsheng Li , Feng Zhou , Jianxi Liu

The addition of corrosion inhibitors to epoxy resin coatings is an effective strategy of preventing corrosion process of the substrate. However, the anti-corrosion performance of epoxy resin coatings is not satisfactory in terms of long period of time, owing to the leaking out of corrosion inhibitors. In this paper, we present a composite epoxy resin coating with enhanced long-term anti-corrosion performance, achieved through the synergistic combination of inorganic and organic corrosion inhibitors that refer to metal-organic frameworks (MOFs) with controlled loading of benzotriazole (BTA). The complexation of the inorganic corrosion inhibitor Ce⁴⁺ within the UiO-67 structure (UiO-67-Ce) is accomplished by partially substituting organic ligands with Ce-coordinated 2,2′-bipyridine-5,5′-dicarboxylic acid (Bpydc-Ce). Then, organic corrosion inhibitor BTA is further incorporated into the UiO-67-Ce@BTA by solvent loading process. The organic and inorganic inhibitors-loaded MOFs are dispersed in the epoxy matrix to fabricate anti-corrosion coatings via spraying-coating method. The UiO-67-Ce@BTA/epoxy coating exhibits high corrosion inhibition efficiency (99.95 %), due to efficient release of the bifunctional inhibitors. Additionally, scratch test of the UiO-67-Ce@BTA/epoxy coating demonstrates active corrosion protection performance, which can effectively mitigate localized corrosion. Therefore, we establish an organic-inorganic synergistic anti-corrosion strategy using UiO-67-Ce@BTA as functional nanofillers, offering promising strategy for corrosion protection.

在环氧树脂涂层中添加缓蚀剂是防止基体腐蚀的有效方法。然而，由于缓蚀剂的泄漏，环氧树脂涂料的防腐性能在长时间内并不令人满意。在本文中，我们提出了一种复合环氧树脂涂层，具有增强的长期防腐性能，通过无机和有机缓蚀剂的协同组合，指的是金属-有机框架（MOFs）与控制负载苯并三唑（BTA）。无机缓蚀剂Ce4+通过ce配位的2,2′-联吡啶-5,5′-二羧酸（Bpydc-Ce）部分取代有机配体，与UiO-67结构（UiO-67- ce）进行络合。然后，通过溶剂加载工艺将有机缓蚀剂BTA进一步掺入UiO-67-Ce@BTA中。将负载有机和无机缓蚀剂的mof分散在环氧基体中，采用喷涂法制备防腐涂层。由于双功能抑制剂的有效释放，UiO-67-Ce@BTA/环氧涂层具有较高的缓蚀效率（99.95%）。此外，UiO-67-Ce@BTA/环氧涂层的划痕试验表明，该涂层具有有效的防腐性能，可以有效地减轻局部腐蚀。因此，我们建立了一种有机-无机协同防腐策略，以UiO-67-Ce@BTA为功能纳米填料，为防腐提供了有前途的策略。

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