Progress in Organic Coatings最新文献_第5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 : 2026-04-01 Epub 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

Synthesis of multifunctional amphiphilic coatings via thiol-ene click reactions and investigation of their properties 巯基键合反应合成多功能两亲性涂料及其性能研究

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-04-01 Epub Date: 2026-01-19 DOI: 10.1016/j.porgcoat.2026.109962

Yang Liu , Dongjing Gao , Jinmei He , Chao Wang , Xue An , Yongping Bai , Yinchuan Pu

Amphiphilic coatings hold broad prospects in anti-fogging, anti-icing, and anti-fouling fields, yet bottlenecks such as high cost, poor compatibility, and insufficient transparency remain unsolved. Developing highly compatible, transparent, and multifunctional coatings thus remains a key challenge in materials science. In this work, hydrophilic polyether units were grafted onto the hydrophobic Si-O-Si backbone via hydrosilylation addition reaction to endow amphiphilicity; meanwhile, vinyl and mercapto groups were introduced through ring-opening condensation to impart high reactivity. Finally, rapid cross-linking and curing were achieved via thiol-ene click reaction, yielding a colorless, transparent, and multifunctional amphiphilic coating. The coating can be rapidly cured and applied to various substrates (e.g., PET, glass), demonstrating excellent universality and efficiency. Core tests confirmed its outstanding anti-fogging and anti-icing performance: light transmittance >92% and haze as low as 2%, surpassing most analogous coatings. It exhibited an average bacteriostatic rate of 98.4% against Escherichia coli (Gram-negative bacteria), along with good resistance to Staphylococcus aureus (Gram-positive bacteria) and common contaminants (light soy sauce, edible vinegar, sesame oil). This study provides new insights for the structural design and practical application of amphiphilic coatings.

两亲性涂料在防雾、防冰、防污等领域具有广阔的应用前景，但其成本高、相容性差、透明度低等瓶颈尚未得到解决。因此，开发高度兼容、透明和多功能的涂层仍然是材料科学的关键挑战。在这项工作中，亲水性聚醚单元通过硅氢化加成反应接枝到疏水性Si-O-Si骨架上，赋予两亲性；同时，通过开环缩合引入乙烯基和巯基，提高反应活性。最后，通过巯基点击反应实现快速交联和固化，得到无色、透明、多功能的两亲性涂层。该涂层可快速固化，可应用于各种基材（如PET、玻璃），具有优异的通用性和高效性。核心测试证实了其出色的防雾和防冰性能：透光率>；92%，雾度低至2%，超过了大多数类似的涂料。对大肠杆菌（革兰氏阴性菌）的平均抑菌率为98.4%，对金黄色葡萄球菌（革兰氏阳性菌）和常见污染物（生抽、食醋、香油）具有良好的抵抗力。该研究为两亲性涂料的结构设计和实际应用提供了新的思路。

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引用次数: 0

Development and performance evaluation of graphene oxide nanoparticle-embedded metamaterial for X-band radar absorber applications 应用于x波段雷达吸收材料的纳米氧化石墨烯嵌入材料的研制与性能评价

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-04-01 Epub Date: 2025-12-31 DOI: 10.1016/j.porgcoat.2025.109876

Md. Bakey Billa , Touhidul Alam , Mohamad A. Alawad , Abdulmajeed M. Alenezie , Mohammad Tariqul Islam

The rapid evolution of stealth technology and electromagnetic interference (EMI) suppression systems demands radar absorbers that combine lightweight flexibility with high absorption precision in the X-band frequency range. While broadband absorbers target wide coverage, narrowband metamaterial absorbers with near-perfect absorption are increasingly essential for targeted radar cross-section reduction, satellite communication shielding, and defence surveillance. However, conventional absorbers still face challenges such as imperfect impedance matching, high reflection losses, and complex fabrication methods, limiting their use in advanced electromagnetic platforms. In this study, a graphene nanoparticle-embedded metamaterial absorber is designed, fabricated, and evaluated for high-efficiency absorption at 8.2 GHz. The graphene oxide-polyvinyl alcohol (GO-PVA) substrate is prepared using a 1:5 ratio of graphene nano powder and PVA with distilled water, forming a uniform, flexible dielectric film with a dielectric constant (εᵣ) = 6.154 and loss tangent (tan δ) = 0.00245 over the 8–10 GHz range. A hybrid square-ring copper resonator (thickness = 0.0035 mm) is manually patterned onto the GO-PVA substrate (1.8 mm thick) with a full copper ground plane. The structure was modelled in CST Microwave Studio, applying periodic and Floquet boundary conditions to simulate infinite periodicity. Simulation results revealed a reflection coefficient (S₁₁) of ‐34.8 dB at 8.2 GHz, corresponding to 99.98 % absorption, attributed to near-perfect impedance matching and the anti-phase reflection mechanism typical of chessboard meta surfaces. The retrieved parameters confirmed negative permittivity and permeability, with positive refractive index and impedance, validating the metamaterial behaviour. Experimental validation using an Agilent PNA-L Vector Network Analyzer, N4697 coaxial cables, and A-INFOMW waveguides showed excellent agreement with simulation, reproducing the same 8.2 GHz resonance. The proposed absorber demonstrates exceptional electromagnetic wave attenuation which offering a cost-effective and high-precision solution for X-band radar stealth, defence tracking, and satellite communication applications.

隐身技术和电磁干扰（EMI）抑制系统的快速发展要求雷达吸收器在x波段频率范围内结合轻量级灵活性和高吸收精度。虽然宽带吸收器的目标是宽覆盖，但具有近乎完美吸收的窄带超材料吸收器在目标雷达横截面减小、卫星通信屏蔽和国防监视方面越来越重要。然而，传统的吸收器仍然面临着阻抗匹配不完美、反射损耗高、制造方法复杂等挑战，限制了它们在先进电磁平台上的应用。在这项研究中，设计、制造了一种嵌入石墨烯纳米粒子的超材料吸收体，并对其在8.2 GHz波段的高效吸收进行了评估。在8-10 GHz范围内，以1:5的比例制备了氧化石墨烯-聚乙烯醇（GO-PVA）衬底，形成了均匀、柔性的介电常数（εᵣ）= 6.154，损耗正切(tan δ) = 0.00245的介质膜。将混合方环铜谐振器（厚度= 0.0035 mm）手工图案化到GO-PVA基板（1.8 mm厚）上，并具有完整的铜接平面。采用周期边界条件和Floquet边界条件模拟无限周期，在CST微波工作室中对结构进行了建模。仿真结果表明，在8.2 GHz时，反射系数（S11）为‐34.8 dB，对应于99.98%的吸收率，这归因于近乎完美的阻抗匹配和棋盘元表面典型的反相位反射机制。检索参数证实负介电常数和磁导率，正折射率和阻抗，验证了超材料的行为。使用安捷伦PNA-L矢量网络分析仪、N4697同轴电缆和A-INFOMW波导进行实验验证，结果与仿真结果非常吻合，重现了相同的8.2 GHz谐振。所提出的吸收器具有优异的电磁波衰减性能，为x波段雷达隐身、国防跟踪和卫星通信应用提供了经济高效的高精度解决方案。

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引用次数: 0

Sustainable bio-acrylate oligomeric tackifier: A molecular-weight-controlled approach for high-performance optically clear adhesive films 可持续的生物丙烯酸酯低聚固化剂：一种用于高性能光学透明胶膜的分子量控制方法

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-04-01 Epub Date: 2025-12-30 DOI: 10.1016/j.porgcoat.2025.109933

Tran Quang Linh , Kiok Kwon , Seunghan Shin

Bio-based acrylate tackifiers with high optical clarity were developed through a simple one-step free-radical polymerization of 2-octyl acrylate (2-OA) and isobornyl acrylate (IBOA), offering a sustainable and optically superior alternative to conventional rosin ester resins. Critically, this synthesis avoids the complex multi-step esterification and hydrogenation typically required for rosin-based tackifiers, adopting instead a simple, one-step chain-transfer-agent-controlled strategy. This strategy enables precise molecular-weight tuning (M_n = 5.0–11.0 kDa) for the systematic optimization of optical and adhesive performance. The optimized 6.6 kDa oligomer yielded films with >99 % transmittance, haze <0.2 %, and YI < 0.1, while maintaining a bio‑carbon content of 70.8 %. When incorporated into a bio-acrylate PSA, it exhibited a ~ 70 % enhancement in peel strength and improved loop tack, attributed to a clear mechanism of enhanced surface wetting and an optimized viscoelastic profile. Compared to conventional rosin ester tackifiers, this acrylate oligomer provides superior optical clarity, strong adhesion reinforcement, and a significantly simplified metal-free processing route. This work establishes a scalable platform for next-generation, bio-based optically clear adhesive coatings.

通过简单的一步自由基聚合，丙烯酸2-辛酯（2-OA）和丙烯酸异鸟酯（IBOA）开发出了具有高光学透明度的生物基丙烯酸酯增粘剂，为传统松香酯树脂提供了一种可持续的、光学性能优越的替代品。关键的是，这种合成避免了松香基增粘剂通常需要的复杂的多步酯化和氢化反应，而是采用了简单的一步链转移剂控制策略。该策略可以实现精确的分子量调整（Mn = 5.0-11.0 kDa），从而系统地优化光学和粘合性能。优化后的6.6 kDa低聚物制备的薄膜透光率为99%，雾度为0.2%，YI为0.1，同时保持了70.8%的生物碳含量。当加入到生物丙烯酸酯PSA中时，由于明显的表面润湿机制和优化的粘弹性剖面，它的剥离强度提高了约70%，环粘性也得到了改善。与传统的松香酯增粘剂相比，这种丙烯酸酯低聚物具有优越的光学清晰度、强附着力增强和显著简化的无金属加工路线。这项工作为下一代生物基光学透明粘合剂涂层建立了一个可扩展的平台。

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引用次数: 0

Fluorine-free superhydrophobic multi-functional robust coating 无氟超疏水多功能坚固涂层

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-04-01 Epub Date: 2026-01-24 DOI: 10.1016/j.porgcoat.2026.109976

Hao Zhang , Tong Liu , Duo Qi , Ming Wu , Fuxin Liang , Dawei Zhang , Na Wang

Although multifunctional superhydrophobic surfaces exhibit broad application prospects, their practical application is constrained by complicated preparation, environmental pollution, demanding equipment requirements, and poor durability. Herein, we developed a fluorine-free, ultrarobust superhydrophobic coating comprising zeolitic imidazolate framework-71 (ZIF-71)-assembled CaCO₃ microspheres and an epoxy/polydimethylsiloxane dual-network resin. This coating could be applied to various substrates, exhibiting a water contact angle of 154.5° ± 0.8° and water sliding angle of 5.4° ± 0.5°. It retained its superhydrophobic properties after severe mechanical stresses, such as those from tape peeling (300 cycles), sandpaper abrasion (12 m), high-velocity water jetting (42 L), and quartz sand impact (4.0 kg). This exceptional durability was attributed to the stable hierarchical microscale/nanoscale structure formed by ZIF-71 nanoparticles on the surface of CaCO₃ microspheres and enhanced interfacial adhesion due to the interconnected pore structure of the microspheres. Additionally, the coating exhibited strong resistance to harsh corrosive environments (pH 1–14, 3.5 wt% NaCl, and saturated NaCl solutions) as well as self-cleaning properties, which effectively prevented dirt accumulation. Electrochemical impedance spectroscopy in a 3.5 wt% NaCl solution confirmed the superior durability of the composite coating, showing an impedance modulus of 1.02 × 10¹⁰ Ω·cm². Icing delay and cyclic freeze–thaw tests confirmed that the coating could considerably delay ice nucleation by up to 458 s and maintain hydrophobicity after 25 freeze–thaw cycles.

虽然多功能超疏水表面具有广阔的应用前景，但其实际应用受到制备复杂、环境污染、设备要求高、耐久性差等因素的制约。在此，我们开发了一种无氟，超耐水性超疏水涂层，该涂层由沸石咪唑酸框架-71 （ZIF-71）组装的CaCO3微球和环氧/聚二甲基硅氧烷双网络树脂组成。该涂层可应用于多种基材，水接触角为154.5°±0.8°，水滑动角为5.4°±0.5°。在胶带剥离（300次循环）、砂纸磨损（12米）、高速水射流（42升）和石英砂冲击（4.0公斤）等剧烈机械应力作用下，它仍能保持超疏水性。这种优异的耐久性归因于ZIF-71纳米颗粒在CaCO3微球表面形成的稳定的微/纳米级分层结构，以及由于微球的互连孔结构而增强的界面附着力。此外，该涂层具有很强的耐恶劣腐蚀环境（pH 1-14, 3.5 wt% NaCl和饱和NaCl溶液）和自清洁性能，有效地防止了污垢的积累。在3.5 wt% NaCl溶液中，电化学阻抗谱证实了复合涂层优异的耐久性，阻抗模量为1.02 × 1010 Ω·cm2。结冰延迟和循环冻融试验证实，该涂层可以显著延迟冰核长达458秒，并在25次冻融循环后保持疏水性。

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引用次数: 0

Epoxy-carbon composite coatings for integrated corrosion and fouling resistance: Advancing protective material design 环氧碳复合涂层的综合腐蚀和抗污：先进的防护材料设计

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-04-01 Epub Date: 2026-01-21 DOI: 10.1016/j.porgcoat.2026.109970

Geetha Anbalagan , Balachandran Subramanian , Jeeva Jothi Kumaravel

Corrosion and biofouling remain persistent challenges in industrial and marine environments, leading to major economic losses and environmental concerns. Conventional epoxy coatings are valued for their strong adhesion and chemical resistance, but they are limited by brittleness, UV sensitivity, and poor long-term durability. The incorporation of carbon-based nanomaterials such as graphene, graphene oxide, carbon nanotubes, carbon black, and carbon quantum dots has revolutionized epoxy systems. These nanofillers enhance mechanical strength, barrier performance, and multifunctionality. These nanostructures improve corrosion resistance, impart antifouling and antibacterial properties through reactive oxygen species generation and biofilm inhibition. However, challenges such as nanoparticle dispersion, cost efficiency, environmental safety, and scalability remain. This review demonstrates advances in epoxy–carbon composites, focusing on nanotechnology-driven enhancements and their implications for next-generation coatings. It emphasizes the transition toward intelligent, self-healing, and sustainable systems, highlighting their potential to deliver durable, eco-friendly protection across diverse industrial applications.

腐蚀和生物污染是工业和海洋环境中持续存在的挑战，导致重大的经济损失和环境问题。传统的环氧涂料因其强大的附着力和耐化学性而受到重视，但它们受到脆性，紫外线敏感性和长期耐久性差的限制。碳基纳米材料（如石墨烯、氧化石墨烯、碳纳米管、炭黑和碳量子点）的掺入彻底改变了环氧树脂体系。这些纳米填料增强了机械强度、阻隔性能和多功能性。这些纳米结构通过活性氧的产生和生物膜的抑制，提高了耐腐蚀性，赋予了防污和抗菌性能。然而，诸如纳米颗粒分散、成本效率、环境安全和可扩展性等挑战仍然存在。这篇综述展示了环氧碳复合材料的进展，重点是纳米技术驱动的增强及其对下一代涂料的影响。它强调了向智能、自我修复和可持续系统的过渡，强调了它们在各种工业应用中提供持久、环保保护的潜力。

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引用次数: 0

Harnessing silicone runaway polymerization for an instantaneous intumescent fire-shielding silicone coating 利用硅失控聚合制备瞬时膨胀防火硅树脂涂层

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-04-01 Epub Date: 2026-01-20 DOI: 10.1016/j.porgcoat.2025.109940

Dingsong Wang , Youwei Zhu , Qian Zhang , Bin Liu , Jinyan Zhang , Liyan Liang , Chaolong Yang

Intumescent flame-retardant (IFR) systems represent a critical strategy for addressing fire challenges; however, conventional IFR systems often suffer from complex composition, poor substrate compatibility, and limited thermal stability under elevated temperatures. Utilizing the runaway hydrosilylation polymerization between tetravinylcyclotetrasiloxane (V₄) and 1,3,5,7-tetramethylcyclotetrasiloxane (H₄), a novel IFR system based on polyH₄V₄ was developed, which exhibits an ultrahigh cross-linking density and exceptional thermal stability. Upon thermal activation, hydrosilylation-driven runaway polymerization acts as a gas source, enabling the polyH₄V₄ to instantaneously expand and curing into a porous, thermally stable coating on the substrate surface. Finally, through modification with vinyl-functionalized polysiloxanes, the IFR system achieved significantly enhanced expanded coating thickness and thermal-shielding performance. The polymethylvinylsiloxane (PMVS)-modified variant demonstrated exceptional performance, achieving a 3.7-fold height expansion compared to the pure H₄V₄ sample, while the charring time of the protected wood substrate was more than doubled. Additionally, micro-region analysis of the ceramicized polyH₄V₄ was conducted using in situ XPS and TG-FTIR, revealing its flame-retardant mechanism. This work provides a scalable strategy for developing innovative IFR coatings based on runaway polymerization, demonstrating potential applications in protective coatings for urban infrastructure fire protection.

膨胀阻燃剂（IFR）系统是解决火灾挑战的关键策略；然而，传统的IFR系统通常存在复杂的成分、较差的衬底兼容性以及高温下有限的热稳定性。利用四乙烯基环四硅氧烷（V4）与1,3,5,7-四甲基环四硅氧烷（H4）之间的失控硅氢化聚合反应，开发了一种新型的基于聚h4v4的IFR体系，该体系具有超高的交联密度和优异的热稳定性。在热活化后，氢硅基化驱动的失控聚合作为气源，使polyH4V4能够瞬间膨胀并固化成基材表面多孔的热稳定涂层。最后，通过乙烯基功能化聚硅氧烷的改性，IFR体系的膨胀涂层厚度和热屏蔽性能得到了显著提高。聚甲基乙烯硅氧烷（PMVS）改性的变体表现出优异的性能，与纯H4V4样品相比，实现了3.7倍的高度膨胀，而受保护的木材基材的炭化时间增加了一倍以上。此外，利用原位XPS和TG-FTIR对陶瓷化的polyH4V4进行了微区分析，揭示了其阻燃机理。这项工作为开发基于失控聚合的创新IFR涂料提供了可扩展的策略，展示了在城市基础设施防火防护涂料中的潜在应用。

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引用次数: 0

Dynamic responsive liquid-like smooth coatings developed via multi-mechanism synergistic strategy for intelligent antibiofouling 基于多机制协同策略开发的动态响应类液体光滑涂层

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-04-01 Epub Date: 2026-01-13 DOI: 10.1016/j.porgcoat.2026.109950

Feiyan Zhang , Junkai Gao , Ziru Zhao , Mengsheng Xia , Xintong Li , Lu Cao , Yan Chen

Marine antifouling coatings are critical for protecting ships and offshore industrial equipment from biofouling and corrosion. However, conventional coatings often fail to balance antifouling and anti-corrosion performance with mechanical stability. In this paper, a pH-responsive antibiofouling composite coating (OC-MCSX) with slippery liquid-like properties and long-term functionality was developed. The coating was fabricated by covalently grafting PDMS brushes into an epoxy matrix via thermal crosslinking, while incorporating microencapsulated 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT) as a functional filler. The highly crosslinked network significantly enhanced the OC-MCSX's mechanical strength, whereas the pH-responsive microcapsules enabled precise controlled release of antifoulants. Furthermore, this design integrates a low-surface-energy fouling-release mechanism with a contact-inhibition antifouling strategy. Through the synergistic effects of surface interface regulation and controlled-release antifouling agents, it effectively suppresses the adhesion and accumulation of biofouling, thereby achieving stable and long-lasting antifouling performance. The experimental results showed that the composite coating with 3 wt% microcapsule loading (OC-MCS3) exhibited remarkable antibacterial efficacy, the antibacterial rates against E. coli and S. aureus are 98.25 % and 99.56 % respectively, inhibition rates of 88.22 % against chlorella and 93.13 % against diatoms, and a pseudo-barnacle removal strength of only 0.053 MPa. In addition, the coating exhibited excellent resistance to a wide range of solid and liquid contaminants, along with superior self-cleaning ability. After 60 days of marine immersion testing, the OC-MCS3 coating showed no significant biofouling coverage compared with control samples, confirming its excellent anti-fouling stability. This research proposes a prospective tactic for developing environmentally friendly and durable anti-fouling coatings for ships.

船舶防污涂料对于保护船舶和海上工业设备免受生物污染和腐蚀至关重要。然而，传统涂料往往不能平衡防污和防腐性能与机械稳定性。本文研制了一种ph响应型抗菌剂复合涂层（OC-MCSX），该涂层具有光滑的类液体特性和长效功能。该涂层通过热交联将PDMS电刷共价接枝到环氧树脂基体上，并加入微胶囊化4,5-二氯-2-n-辛基-4-异噻唑啉-3- 1 （DCOIT）作为功能填料。高度交联的网络显著提高了OC-MCSX的机械强度，而ph响应微胶囊能够精确控制防垢剂的释放。此外，该设计集成了低表面能污垢释放机制和接触抑制防污策略。通过表面界面调节和控释防污剂的协同作用，有效抑制生物污垢的粘附和积累，从而达到稳定持久的防污性能。实验结果表明，微胶囊负载量为3 wt%的复合涂层（OC-MCS3）具有显著的抗菌效果，对大肠杆菌和金黄色葡萄球菌的抑菌率分别为98.25%和99.56%，对小球藻和硅藻的抑菌率分别为88.22%和93.13%，对伪附体的去除强度仅为0.053 MPa。此外，该涂层对各种固体和液体污染物具有优异的抵抗能力，并具有优异的自清洁能力。经过60天的海水浸泡测试，与对照样品相比，OC-MCS3涂层没有明显的生物污垢覆盖，证实了其出色的防污稳定性。本研究为开发环境友好、耐用的船舶防污涂料提供了一种前瞻性策略。

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引用次数: 0

Eco-friendly solvent-free waterborne hydroxyacrylate dispersions based on bio-based castor oil hyperbranched polyols for two-component polyurethane coatings with damping performance 基于生物基蓖麻油超支化多元醇的环保型无溶剂水性羟基丙烯酸酯分散体，用于具有阻尼性能的双组份聚氨酯涂料

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-04-01 Epub Date: 2026-01-15 DOI: 10.1016/j.porgcoat.2026.109961

Yuan Duan , Lingjia Qiu , Mengting Zhang , Yongbo Ding , Peilin Wang , Liang Shen

An eco-friendly, solvent-free waterborne hydroxyacrylate dispersion was developed using a castor-oil hyperbranched polyester polyol (COHPE) as a reactive diluent, enabling the preparation of two-component waterborne polyurethane (2 K WPU) coatings with intrinsic damping functionality. The COHPE was synthesized via esterification and incorporated into the waterborne hydroxyacrylate system to simultaneously reduce viscosity and enhance processability without the use of volatile organic solvents (VOC). The resulting dispersion (COHPE-WA-30) exhibited excellent colloidal stability and uniform particle sizes, while the cured films demonstrated a break strength of 6.81 MPa, elongation at break of 22.26%, and a static water contact angle of 86.2° ± 0.19°. Dynamic mechanical analysis (DMA) revealed the tan δ value remains greater than 0.3 within the temperature range of 43–101 °C, confirming superior damping performance. Moreover, the solvent-low 2 K WPU coatings achieved excellent adhesion (5B), gloss, and solvent resistance, combined with enhanced thermal stability. This study establishes an environmentally benign and scalable approach for fabricating high-performance 2 K WPU coatings that integrate renewable materials, solvent-low processing, and multifunctional mechanical-damping behavior.

以蓖麻油超支化聚酯多元醇（COHPE）为活性稀释剂，开发了一种环保型无溶剂水性羟基丙烯酸酯分散体，可制备具有固有阻尼功能的双组分水性聚氨酯（2k WPU）涂料。在不使用挥发性有机溶剂（VOC）的情况下，通过酯化反应合成了COHPE，并将其加入水性羟丙烯酸酯体系中，同时降低了粘度并提高了加工性。得到的分散体（COHPE-WA-30）具有良好的胶体稳定性和均匀的粒径，固化膜的断裂强度为6.81 MPa，断裂伸长率为22.26%，静态水接触角为86.2°±0.19°。动态力学分析（DMA）表明，在43 ~ 101℃的温度范围内，tan δ值保持在0.3以上，具有良好的阻尼性能。此外，低溶剂的2 K WPU涂层具有优异的附着力（5B），光泽度和耐溶剂性，并具有增强的热稳定性。本研究建立了一种环保且可扩展的方法来制造高性能的2k WPU涂层，该涂层集成了可再生材料、低溶剂加工和多功能机械阻尼性能。

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引用次数: 0

Polydopamine activation of hydrophobic particles to enhance anti-corrosion and anti-fouling of epoxy coatings 聚多巴胺活化疏水颗粒增强环氧涂料的防腐蚀和防污性能

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-04-01 Epub Date: 2026-01-27 DOI: 10.1016/j.porgcoat.2026.109998

Qiang Zhang , Wanwan Zhang , Yage Xia , Yanzheng Ji , Xinquan Yu , Youfa Zhang

Marine corrosion and biofouling are two significant factors that threaten the service reliability of ships and marine engineering equipment. Coating the surface of ship and marine engineering equipment with organic coatings is currently the most economical and effective solution to the problems of marine corrosion and biofouling. However, it is extremely difficult for a single organic coating material to simultaneously possess both anti-corrosion and anti-fouling properties. In this paper, modified PTFE@PDA particles were obtained by the self-polymerization of dopamine (DA) on the surface of polytetrafluoroethylene (PTFE) nanoparticles. The modified particles were mixed with epoxy resin and cured to prepare a low surface energy coating with both anti-corrosion and anti-fouling properties. The Q235B steel plate coated with PTFE@PDA coating achieved an impedance modulus (|Z|_0.01Hz) of 7.67 × 10⁹ Ω·cm² in the simulated seawater (3.5 wt% NaCl solution). After being cultured in the Escherichia coli culture medium for 72 h, the surface bacterial coverage of the glass sample coated with PTFE@PDA coating is only 2.25%. After being immersed and cultured in the Chlorella culture medium for 15 days, the coverage of Chlorella on the PTFE@PDA coating surface is only 2.8%. The PTFE@PDA coating is easy to prepare and simple to construct. It exhibits excellent mechanical properties, substrate adhesion, durability, self-cleaning properties, anti-corrosion, and anti-fouling properties, making it have good application potential in the field of ship and marine engineering.

海洋腐蚀和生物污染是威胁船舶和海洋工程设备使用可靠性的两个重要因素。在船舶和海洋工程设备表面涂覆有机涂层是目前解决海洋腐蚀和生物污染问题最经济有效的方法。然而，单一的有机涂层材料同时具有防腐和防污性能是非常困难的。本文通过多巴胺（DA）在聚四氟乙烯（PTFE）纳米颗粒表面的自聚合得到了改性PTFE@PDA颗粒。将改性后的颗粒与环氧树脂混合固化，制备出具有防腐蚀和防污性能的低表面能涂层。涂有PTFE@PDA涂层的Q235B钢板在模拟海水（3.5 wt% NaCl溶液）中的阻抗模量（|Z|0.01Hz）为7.67 × 109 Ω·cm2。在大肠杆菌培养基中培养72 h后，涂有PTFE@PDA涂层的玻璃样品表面细菌覆盖率仅为2.25%。在小球藻培养基中浸泡培养15天后，PTFE@PDA包衣表面小球藻的覆盖率仅为2.8%。PTFE@PDA涂料制备简单，施工简单。它具有优异的机械性能、基材附着力、耐久性、自洁性能、防腐性能和防污性能，在船舶和海洋工程领域具有良好的应用潜力。

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引用次数: 0