Progress in Organic Coatings最新文献_第7页

High-performance bio-based UV-curable coatings with tunable mechanical and tribological properties 具有可调机械和摩擦学性能的高性能生物基紫外光固化涂层

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-01-08 DOI: 10.1016/j.porgcoat.2026.109949

Pablo-Manuel Martínez-Rubio , Oskars Platnieks , María-Dolores Avilés , Maksims Jurinovs , Ramón Pamies , Madara Veseta , Francisco-José Carrión-Vilches , Sergejs Gaidukovs

Three ultraviolet (UV)-curable coatings on AISI 1015 steel with a bio-based content of up to 82 % were formulated as sustainable alternatives to conventional coating resin systems. The compositions, based on acrylated epoxidized soybean oil (AESO) and isobornyl (meth)acrylates (IBOMA/IBOA), were characterized using FTIR, UV–VIS spectroscopy, tensile testing, dynamic mechanical analysis (DMA), thermal gravimetric analysis (TGA), adhesion testing, wettability, and tribological analysis through scratch and pin-on-disk tests. Mechanical evaluation revealed tunable behavior, varying from stiff to compliant, with Young's moduli ranging from 1.2 to 0.4 GPa and elongation at break from 3.7 % to 8.6 %, indicating a transition from hard to ductile. The glass transition temperature ranged from 22 to 71 °C, while the optical transmittance exceeded 92 % in the wavelength range of 420–700 nm. All coatings preserved their structural integrity under progressive loads of up to 20 N. The formulation with the highest AESO content, thanks to its softer and more flexible network, exhibited improved adhesion and enhanced resistance to abrasive wear, with no substrate exposure under dry sliding conditions. These results highlight that bio-based UV-curable systems can simultaneously deliver mechanical adaptability, optical clarity, and good tribological stability, offering a viable pathway toward sustainable high-performance coating materials.

在aisi1015钢上配制了三种生物基含量高达82%的紫外线固化涂层，作为传统涂层树脂体系的可持续替代品。采用红外光谱（FTIR）、紫外-可见光谱（UV-VIS）、拉伸测试、动态力学分析（DMA）、热重分析（TGA）、粘附性测试、润湿性测试以及摩擦磨损测试（划痕测试和针盘测试）对丙烯酸基环氧大豆油（AESO）和异硼酸酯（甲基）丙烯酸酯（IBOMA/IBOA）组合物进行了表征。力学性能评估显示其可调节的行为，从刚性到柔顺，杨氏模量在1.2到0.4 GPa之间，断裂伸长率在3.7%到8.6%之间，表明其从硬质到延性的转变。玻璃化转变温度为22 ~ 71℃，在420 ~ 700 nm波长范围内，透射率超过92%。所有涂层在高达20 n的累进载荷下都保持了结构的完整性。AESO含量最高的配方，由于其更柔软、更灵活的网络，表现出更好的附着力和更强的抗磨料磨损能力，在干燥滑动条件下不会暴露基材。这些结果表明，生物基紫外光固化体系可以同时提供机械适应性、光学清晰度和良好的摩擦学稳定性，为可持续高性能涂层材料提供了一条可行的途径。

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引用次数: 0

Long-term durability comparison of commercial waterborne and solvent-based polyurethane coatings for steel bridges 钢桥用商用水性和溶剂型聚氨酯涂料的长期耐久性比较

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-01-08 DOI: 10.1016/j.porgcoat.2025.109924

Sang-Hyung Lee , Young-Soo Jeong , In-Tae Kim

Waterborne coatings have garnered attention as a low-volatile organic compound alternative to conventional solvent-based coatings. However, their field use and long-term performance data are limited. This study compares a standard-specified commercial waterborne polyurethane system with a conventional solvent-based system using coated panels exposed to two indoor tests (16,000-h fluorescent ultraviolet light and 13,200-h cyclic corrosion) and a 3-year outdoor marine exposure. Performance is evaluated based on gloss retention, color difference, chalking, rust area, and adhesion strength. The gloss retention of both systems converge to less than 20 % after a certain exposure period. In cyclic corrosion, rust propagation on waterborne panels progress approximately 75 % faster than that on solvent-based panels, whereas after three years of outdoor weathering tests, the difference in the rust-propagation rate is minimal. This divergence is attributed to the different primer mechanisms. The adhesion satisfies the minimum criteria required for both systems.

水性涂料作为一种低挥发性有机化合物替代传统溶剂型涂料而备受关注。然而，它们的现场使用和长期性能数据是有限的。本研究将标准指定的商用水性聚氨酯系统与传统的溶剂型系统进行了比较，该系统使用涂覆板进行两次室内测试（16,000-h荧光紫外线和13,200-h循环腐蚀）和3年的室外海洋暴露。性能评估基于光泽保持，色差，粉笔，锈迹面积和附着力。在一定的曝光时间后，两种体系的光泽保持度收敛到20%以下。在循环腐蚀中，水性板的锈蚀扩展速度比溶剂型板快约75%，而经过三年的室外风化试验后，锈蚀扩展速度的差异很小。这种差异归因于不同的引物机制。附着力满足两种系统所需的最低标准。

引用次数: 0

Self-healing polyurethane coatings with multi-dynamic bonds: Fabrication and applications 具有多动态键的自愈聚氨酯涂料：制造与应用

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-01-07 DOI: 10.1016/j.porgcoat.2025.109932

Aihua Tang , Hao Liu , Qingsong Wu , Weixiang Xu , Tingzhe Wang , Shunbao Hu , Yiping Xu , Yiting Xu , Birong Zeng , Guorong Chen , Lizong Dai

Anticorrosive coatings serve as the core protective measure for offshore wind power installations to resist the extreme corrosive marine environment, ensure the safe and stable operation of equipment, and control the whole-life-cycle costs. Organic coating protection is a cost-effective and convenient method. However, single-functional organic coatings are often insufficient to meet practical application requirements. Therefore, this study developed a multifunctional coating integrating self-healing properties, high mechanical performance, and corrosion resistance. By introducing bis(4-hydroxyphenyl) disulfide and furil as chain extenders and selecting bismaleimide as a cross-linking agent, a PU coating (PU-SS-DA) was successfully prepared. Additionally, a modified boron nitride filler (Mi-hBN-OH) was designed and incorporated into the PU coating to enhance its self-healing and anti-corrosion performance, resulting in the PU@BN coating. The PU-SS-DA, which combines triple dynamic bonds, exhibits outstanding tensile strength (20.88 MPa) and toughness (84.93 MJ·m⁻³), along with excellent self-healing performance. The coating achieved a repair rate of nearly 90 % after 4 h at 80 °C. Due to the synergistic effect of multiple dynamic bonds and the addition of modified boron nitride filler, the PU@BN coating with 5 % Mi-hBN-OH filler demonstrated the highest |Z|_f=0.01Hz value, reaching 3.23 × 10⁹ Ω·cm². After 28 days of immersion in saline, its |Z|_f=0.01Hz remained at 6.28 × 10⁹ Ω·cm². This study provides a new approach for designing polyurethane coatings with anti-corrosion, self-healing, and high mechanical performance properties.

防腐涂料是海上风电装置抵御极端腐蚀性海洋环境、保证设备安全稳定运行、控制全寿命周期成本的核心防护措施。有机涂层保护是一种既经济又方便的方法。然而，单一功能的有机涂料往往不能满足实际应用的要求。因此，本研究开发了一种集自愈性能、高机械性能和耐腐蚀性于一体的多功能涂层。通过引入双（4-羟基苯基）二硫化物和呋喃作为扩链剂，选择双马来酰亚胺作为交联剂，成功制备了PU涂层（PU- ss- da）。此外，设计了一种改性的氮化硼填料（Mi-hBN-OH）并将其掺入PU涂层中，以增强其自愈和抗腐蚀性能，从而得到PU@BN涂层。PU-SS-DA具有优异的抗拉强度（20.88 MPa）和韧性（84.93 MJ·m−3），并具有良好的自愈性能。在80℃下，经过4小时的修复，涂层的修复率接近90%。由于多个动态键的协同作用和改性氮化硼填料的加入，掺5% Mi-hBN-OH填料的PU@BN涂层|Z|f=0.01Hz值最高，达到3.23 × 109 Ω·cm2。在生理盐水中浸泡28天后，其|Z|f=0.01Hz保持在6.28 × 109 Ω·cm2。本研究为设计具有防腐、自愈和高力学性能的聚氨酯涂料提供了新的途径。

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引用次数: 0

Progress of fluorine-free water repellents for textiles: A comprehensive review from industry and academia 纺织品用无氟防水剂的研究进展：工业界和学术界的综合综述

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-01-07 DOI: 10.1016/j.porgcoat.2026.109948

Hao Zhang , Lingfeng Zhang , Bingxian Liu , Yuxin Zai , Ji Gao , Cunwei Fan , Kangning Su , Jie Sun

Water-repellent finishing technology plays a crucial role in the functional processing of textiles. Perfluoroalkyl substances (PFAS)-based water repellents have dominated the market for a long time due to their excellent water-repellent performance. However, they pose risks of environmental persistence and bioaccumulation, leading to their regulation by many countries. This paper reviews the water-repellent mechanism of textiles, the development history of water-repellent finishing agents, and the research progress of fluorine-free water-repellent finishing agents. The water-repellent mechanism is based on the surface contact angle, and water repellency is achieved through special fibers or finishing agents. The development of finishing agents has gone through three stages: the preliminary development of water-repellent agents, the rapid development of fluorine-containing water-repellent agents, and the development of fluorine-free agents. Fluorine-free water repellents replace fluorocarbon chains with long-chain alkyl groups, and mainly fall into four categories (polyacrylate-based, organosilicon-based, polyurethane-based, and dendritic polymer-based) and others. In addition, cutting-edge water-repellent technologies such as nanotechnology and plasma technology are introduced. In the future, the research focus and development direction of water-repellent should be placed on bionic structures, bio-based materials, and multi-functional integration to promote the high-performance and green development of textile.

拒水整理技术在纺织品的功能性加工中起着至关重要的作用。基于全氟烷基物质（PFAS）的防水剂因其优异的防水性长期占据市场主导地位。然而，它们具有环境持久性和生物蓄积性的风险，导致许多国家对其进行管制。本文综述了纺织品的拒水机理、拒水整理剂的发展历史以及无氟拒水整理剂的研究进展。拒水机理以表面接触角为基础，通过特殊纤维或整理剂实现拒水。整理剂的发展经历了拒水剂的初步发展、含氟拒水剂的快速发展和无氟剂的发展三个阶段。无氟防水剂以长链烷基取代氟碳链，主要分为聚丙烯酸酯基、有机硅基、聚氨酯基、树突状聚合物基等四类。此外，还介绍了纳米技术和等离子体技术等尖端防水技术。未来，防水剂的研究重点和发展方向应放在仿生结构、生物基材料、多功能一体化等方面，促进纺织品的高性能、绿色发展。

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引用次数: 0

Durable multifunctional cotton: Flame retardancy, hydrophobicity, and salt-free dyeing 耐用多功能棉：阻燃、疏水、无盐染色

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-01-07 DOI: 10.1016/j.porgcoat.2025.109943

Dan Yu , Kang Yang , Yun Liu , Bin Zhao , Cong-Yun Zhang

Developing multifunctional cellulose textiles with durable flame retardancy, hydrophobicity, and efficient coloration via environmentally benign processes is essential for high-performance surface treatments. Conventional finishing strategies often rely on formaldehyde, excessive dyeing salts, or weakly adherent finishes, all of which compromise durability and environmental compatibility. Herein, we present a scalable finishing strategy that integrates durable flame retardancy, salt-free dyeing, and hydrophobicity without compromising environmental or mechanical performance. The process involves mercerization pretreatment, covalent bonding of ammonium polyphosphate to cellulose for formaldehyde-free and wash-durable flame retardancy, salt-free reactive dyeing with Reactive Red 120, and surface hydrophobization via hexadecyltrimethoxysilane crosslinking coating. Structural analyses using scanning electron microscopy, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy demonstrated successful multifunctional integration on fiber interface. The treated fabrics exhibited superior fire resistance, with a limiting oxygen index (LOI) of 41.3 %, a 77.4 % reduction in peak heat release rate, and retained self-extinguishing capability with LOI ≥32.9 % after 500 laundering cycles. The hydrophobic finishing achieved a water contact angle above 127°, maintaining repellency to water and beverages after repeated washing. Dye uptake was substantially improved (color strength, K/S = 30.5) without salt additives, reducing wastewater salinity. This integrated, formaldehyde-free modification strategy offers an eco-friendly and durable approach for producing multifunctional cellulose textiles.

通过环保工艺开发具有持久阻燃性、疏水性和高效着色的多功能纤维素纺织品是高性能表面处理的必要条件。传统的整理策略往往依赖于甲醛，过量的染色盐，或弱附着力完成，所有这些损害耐久性和环境兼容性。在此，我们提出了一种可扩展的整理策略，该策略集成了持久的阻燃性，无盐染色和疏水性，而不影响环境或机械性能。该工艺包括丝光预处理，聚磷酸铵与纤维素的共价键合，以获得无甲醛和耐洗阻燃性，用活性红120进行无盐活性染色，并通过十六烷基三甲氧基硅烷交联涂层进行表面疏水性。利用扫描电子显微镜、x射线光电子能谱和傅里叶变换红外能谱对光纤界面进行了结构分析，证明了光纤界面的多功能集成是成功的。经过处理的织物表现出优异的耐火性，极限氧指数（LOI）为41.3%，峰值放热率降低77.4%，并在500次洗涤循环后保持LOI≥32.9%的自熄能力。疏水整理实现了127°以上的水接触角，在反复洗涤后保持对水和饮料的拒水性。在不添加盐的情况下，染料的吸收率大大提高（色强，K/S = 30.5），降低了废水的盐度。这种综合的、无甲醛的改性策略为生产多功能纤维素纺织品提供了一种环保和耐用的方法。

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引用次数: 0

Dual strategy of surface fluorination and textured structure to enhance wettability, corrosion resistance and tribological property of epoxy resin coatings 采用表面氟化和织构结构的双重策略提高环氧树脂涂层的润湿性、耐腐蚀性和摩擦学性能

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-01-07 DOI: 10.1016/j.porgcoat.2026.109947

Gaoyu Wang , Ting Dai , Ping An , Ping Chen

This study proposes a dual-strategy approach, combining surface fluorination with texture design, to fabricate superhydrophobic epoxy resin (ER) coatings with simultaneously enhanced wettability, corrosion resistance, and tribological property. Textures with different parameters were prepared via a templating method, and surface fluorination was carried out using FAS-17 to obtain fluorinated and textured ER coating (FTEC). The synergistic effects of texture side length, spacing, height, and surface fluorination were systematically investigated. The results demonstrate that fluorination coupled with textures markedly improved the surface hydrophobicity of the coatings, with the S5-15 sample exhibiting a contact angle of 154° at a texture height of 15 μm. In terms of corrosion resistance, FTEC exhibits an impedance enhancement of two orders of magnitude compared to ER coatings produced by single-texturing and single-fluorination strategies, with the S5-15 sample reaching the highest value of 2.058 × 10¹⁰ Ω·cm². Tribological tests revealed that the coefficient of friction decreased with increasing texture spacing, achieving a minimum of 0.382 for the S10-30 sample with texture height of 5 μm. Meanwhile, the wear rate reached its lowest value of 1.916 × 10⁻⁶ cm³/N·m in the S10-30 sample with texture height of 15 μm. Mechanistic analysis indicates that surface fluorination reduces surface energy, while textures introduce air layers and lubricant storage channels. Their synergistic effect establishes an enhanced mechanism of “air cushion effect and hydrodynamic lubrication”, leading to the comprehensive performance improvement of the ER coatings. This dual-strategy design not only provides a novel approach for developing multifunctional superhydrophobic coatings but also offers promising application potential in harsh-service environments such as marine protection, aerospace systems, and energy equipment.

本研究提出了一种双策略方法，将表面氟化与纹理设计相结合，制备出同时增强润湿性、耐腐蚀性和摩擦学性能的超疏水环氧树脂（ER）涂层。采用模板法制备不同参数的织构，利用FAS-17进行表面氟化处理，得到含氟织构的ER涂层（FTEC）。系统地研究了织构边长、间距、高度和表面氟化的协同效应。结果表明，在织构高度为15 μm时，S5-15样品的接触角为154°，氟化与织构的耦合显著提高了涂层的表面疏水性。在耐蚀性方面，与单织构和单氟化策略制备的ER涂层相比，FTEC的阻抗增强了两个数量级，其中S5-15样品达到了2.058 × 1010 Ω·cm2的最大值。摩擦因数随织构间距的增大而减小，当织构高度为5 μm时，S10-30的摩擦因数最小为0.382。同时，织构高度为15 μm的S10-30试样的磨损率最低，为1.916 × 10−6 cm3/N·m。机理分析表明，表面氟化降低了表面能，而纹理引入了空气层和润滑剂储存通道。它们的协同作用建立了“气垫效应+流体动力润滑”的增强机制，从而使ER涂层的综合性能得到提高。这种双策略设计不仅为开发多功能超疏水涂层提供了新方法，而且在恶劣服务环境（如海洋保护、航空航天系统和能源设备）中具有广阔的应用前景。

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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 : 2026-01-06 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

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 : 2026-01-06 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

Development of self-healing coatings based on PDA@BTA@MOF active fillers for low-temperature corrosion protection 基于PDA@BTA@MOF活性填料的自修复低温防腐涂料的研制

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-01-06 DOI: 10.1016/j.porgcoat.2025.109944

Xiaohua Chen, Hongzhi Cui, Lingyun Tang, Jinlai Yang, Cheng Man

Motivated by the demand for enhanced coating toughness and self-healing capabilities in polar low-temperature environments, a pH-responsive active filler, which was named as PDA@BTA@MOF, was synthesized through the layer-by-layer self-assembly of a metal–organic framework (MOF), benzotriazole (BTA) corrosion inhibitor molecules, and polydopamine (PDA). And then, the obtained fillers denoted as, was incorporated into an epoxy resin to prepare a composite coating (termed the PDA coating) that exhibited superior toughness and excellent low-temperature corrosion protection. Physicochemical characterization revealed that the PDA@BTA@MOF filler possesses a core-shell structure with cubic BTA@MOF as the core and PDA nanoparticles forming the shell, and the special structure ensure that the PDA@BTA@MOF filler could uniformly disperse within the PDA coating matrix. The active filler could significantly enhance the toughness, barrier properties against corrosive media penetration, and adhesion under various conditions of the PDA coating, primarily attributed to mechanisms such as the “pinning effect”. Electrochemical impedance spectroscopy (EIS) and salt spray tests reveals that the PDA coating containing PDA@BTA@MOF filler possesses more excellent anti-corrosion resistance that the pure epoxy coating (EP coating). Even under harsh alternating freeze-salt spray test conditions, where the diffusion of corrosive media through the is coating significantly accelerated and adhesion was substantially degraded, the PDA coating maintained remarkable protective efficacy. Furthermore, immersion tests and EIS analysis on scratched samples confirmed the pH-responsive release behavior of the PDA@BTA@MOF particles and the effective self-healing functionality of the PDA coating.

为了提高涂层在极低温环境下的韧性和自愈能力，通过金属有机骨架（MOF）、苯并三唑（BTA）缓蚀剂分子和聚多巴胺（PDA）的层层自组装，合成了一种ph响应活性填料，命名为PDA@BTA@MOF。然后，将得到的填料（记为）掺入环氧树脂中，制成具有优异韧性和低温防腐性能的复合涂层（称为PDA涂层）。理化表征表明，PDA@BTA@MOF填料具有以立方BTA@MOF为核心，PDA纳米粒子形成外壳的核壳结构，特殊的结构保证了PDA@BTA@MOF填料能够均匀分散在PDA涂层基体内。活性填料可以显著提高PDA涂层的韧性、抗腐蚀介质渗透的阻隔性能和在各种条件下的附着力，主要是由于“钉住效应”等机制。电化学阻抗谱（EIS）和盐雾测试表明，含有PDA@BTA@MOF填料的PDA涂层比纯环氧涂层（EP涂层）具有更优异的耐腐蚀性。即使在严酷的冻盐交替喷雾试验条件下，腐蚀介质在涂层中的扩散速度明显加快，附着力明显降低，PDA涂层仍保持着显著的防护效果。此外，对划伤样品的浸泡测试和EIS分析证实了PDA@BTA@MOF颗粒的ph响应释放行为和PDA涂层的有效自修复功能。

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引用次数: 0

Development of antibacterial food-coating by employing carboxymethyl cellulose from oil palm empty fruit bunches embedded with ginger extract 油棕空果束包埋姜提取物羧甲基纤维素抗菌食品涂层的研制

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-01-06 DOI: 10.1016/j.porgcoat.2025.109901

Erlina Nurul Aini , Novitri Hastuti , Ni Putu Ratna Ayu Krishanti , Greitta Kusuma Dewi , Fitriani , Mutia Herni Ningrum , Farah Fahma , Luthfi Hakim , Wahyu Ramadhan , Muhamad Alif Razi , Heru Satrio Wibisono , Lulu Aprilia Damayanti , Vina Al Qibtiya

Ensuring the quality of traded commodities is essential for food safety and consumer suitability. Horticultural products are particularly vulnerable to microbial spoilage, presenting a considerable challenge for their shelf life in trade and distribution. Food coating technology has emerged as an effective approach to extend the preservation period of perishable products. This study presents the development of an antibacterial coating utilizing carboxymethyl cellulose (CMC) sourced from oil palm empty fruit bunches (OPEFB) in conjunction with ginger extract as an antibacterial agent. The results indicated that OPEFB CMC antimicrobial coating effectively preserved the freshness of tomatoes, as evidenced by critical characteristics such as total soluble solids (TSS), fruit firmness, and vitamin C concentration. The OPEFB-derived CMC in this study demonstrated lower values of degree of substitution, molecular weight, and viscosity compared to commercial CMC. However, when formulated as a coating, it exhibited comparable or even enhanced efficacy in preserving tomatoes, especially with the incorporation of ginger extract into the OPEFB-based coating. Tomatoes coated with OPEFB-CMC containing 5 % ginger extract exhibited outstanding quality, with a vitamin C concentration of 25 ppm, total soluble solids (TSS) of 6.2°Brix, and fruit firmness of 550 N after 21 days of storage, representing the highest values among all coating formulations. The findings indicate that CMC derived from OPEFB may serve as a viable material for food coating applications.

确保交易商品的质量对食品安全和消费者适用性至关重要。园艺产品特别容易受到微生物变质的影响，这对其在贸易和分销中的保质期提出了相当大的挑战。食品涂层技术作为延长易腐食品保鲜期的有效手段而应运而生。本研究利用油棕空果束（OPEFB）中的羧甲基纤维素（CMC）与生姜提取物作为抗菌剂，开发了一种抗菌涂层。结果表明，OPEFB CMC抗菌涂层能有效地保持番茄的新鲜度，其主要指标包括可溶性固形物总量（TSS）、果实硬度和维生素C浓度。与商用CMC相比，本研究中由opefb衍生的CMC具有更低的取代度、分子量和粘度。然而，当配制成涂层时，它在保存西红柿方面表现出相当甚至更高的功效，特别是与生姜提取物合并到opefb涂层中。含有5%生姜提取物的OPEFB-CMC包被番茄的品质优异，维生素C浓度为25 ppm，总可溶性固形物（TSS）为6.2°Brix，果实硬度为550 N，是所有包被配方中最高的。研究结果表明，从OPEFB中提取的CMC可以作为一种可行的食品涂层材料。

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