Progress in Organic Coatings最新文献_第4页

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 : 2026-01-19 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

Ce-based hybrid MOF-modified polydopamine-coated Ti3C2Tx nanosheets for constructing long-lasting barrier and intelligent corrosion-inhibiting polyvinyl butyral anti-corrosion coatings ce基杂化mof修饰的聚多巴胺涂层Ti3C2Tx纳米片用于构建长效屏障和智能缓蚀聚乙烯醇丁醛防腐涂层

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-01-19 DOI: 10.1016/j.porgcoat.2026.109977

Qingmei Guo , Yuying Zheng , Jie Zhang

The gradual permeation of corrosive media and external mechanical damage are the key factors leading to the rapid deterioration of organic coatings' anti-corrosion performance. In this study, a cerium ion-phosphate-2-methylimidazole hybrid metal-organic framework (Ce-P-Im-MOF) was constructed on the surface of polydopamine-coated Ti₃C₂T_x nanosheets (Ti₃C₂T_x@PDA) through an in situ growth and ligand exchange strategy, and it (labelled as Ti₃C₂T_x@PDA-Ce-P-Im-MOF, TPCP) was added into the polyvinyl butyral coating (PVB). The composite coating significantly enhances the long-lasting barrier performance and confers efficient and intelligent corrosion inhibition. Systematic characterisation (FT-IR, XRD, XPS, SEM, TEM, etc.) confirmed the successful synthesis of TPCP. Corrosion inhibition performance evaluation indicates that TPCP exhibits pronounced pH-responsive release characteristics for both cerium ions and phosphate ions, thereby preventing unnecessary leakage. Within 72 h, it achieved a corrosion inhibition efficiency of up to 84.26% on copper substrates. Electrochemical impedance spectroscopy (EIS) results showed that the log|Z|_0.01Hz of the intact coating was still 9.55 Ω·cm² after 100 d of immersion in 3.5 wt% NaCl solution, demonstrating excellent long-lasting barrier performance. When the coating is damaged, the log|Z|_0.01Hz of the composite coating quickly recovers to 6.09 Ω·cm² within 72 h, and the salt spray test further confirms that the scratched coating is still able to effectively protect the copper substrate for up to 14 d. The excellent long-lasting barrier and high corrosion inhibition performance are attributed to the synergistic effect of physical barrier/conductivity modulation of Ti₃C₂T_x@PDA and pH-responsive dynamic corrosion inhibition of Ce-P-Im-MOF in TPCP. This study provides an innovative strategy for the development of advanced anticorrosion coatings with both long-lasting barrier and intelligent corrosion inhibition functions.

腐蚀介质的逐渐渗透和外部机械损伤是导致有机涂层防腐性能迅速恶化的关键因素。本研究通过原位生长和配体交换策略，在聚多巴胺包被Ti3C2Tx纳米片（Ti3C2Tx@PDA）表面构建了铈离子-磷酸盐-2-甲基咪唑杂化金属-有机骨架（Ce-P-Im-MOF），并将其（标记为Ti3C2Tx@PDA-Ce-P-Im-MOF， TPCP）加入到聚乙烯醇丁醛包被（PVB）中。复合涂层显著提高了持久屏障性能，并赋予高效和智能的缓蚀作用。系统表征（FT-IR， XRD， XPS， SEM， TEM等）证实了TPCP的成功合成。缓蚀性能评价表明，TPCP对铈离子和磷酸盐离子均表现出明显的ph响应释放特性，从而防止了不必要的泄漏。在72 h内，对铜基体的缓蚀效率高达84.26%。电化学阻抗谱（EIS）结果表明，在3.5 wt% NaCl溶液中浸泡100 d后，完整涂层的log|Z|0.01Hz仍为9.55 Ω·cm2，具有良好的长效阻隔性能。当涂层被破坏时，复合涂层的log|Z|0.01Hz在72 h内迅速恢复到6.09 Ω·cm2；盐雾试验进一步证实，划伤涂层仍能有效保护铜基体长达14 d。优异的长效屏障和高缓蚀性能归功于物理屏障/电导率调制Ti3C2Tx@PDA和TPCP中Ce-P-Im-MOF的ph响应动态缓蚀协同作用。该研究为开发具有持久屏障和智能缓蚀功能的先进防腐涂料提供了一种创新策略。

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引用次数: 0

Superamphiphobic coating fabricated on 5083 aluminum alloy with integrated anti-corrosion and anti-icing functions 在5083铝合金上制备了具有防腐、防冰一体化功能的超双疏涂层

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-01-19 DOI: 10.1016/j.porgcoat.2026.109979

Chiping Che , Donald Terry Greenfield , Min Wang , Binbin Zhang

The failure of superhydrophobic materials in low-surface-tension liquid environments remains a critical challenge. In this paper, we fabricate a superamphiphobic coating through a facile spray-coating technique based on PVDF and fluorinated SiO₂ (F-SiO₂) nanoparticles. The coating exhibits contact angle (CA) greater than 150° and sliding angle (SA) below 5° for water, ethylene glycol, peanut oil, and hexadecane, demonstrating excellent repellency toward liquids with a wide range of surface tensions. Furthermore, the coating displays remarkable anti-fouling and self-cleaning properties, as liquids of various surface tensions can effectively remove solid contaminants from the surface. Electrochemical impedance spectroscopy (EIS) and neutral salt spray tests confirm its superior anti-corrosion function. After 960 h of salt spray exposure, the surface retains its superhydrophobicity, although its superoleophobicity shows a slight decline. Investigations of icing behavior reveal that the superamphiphobic coating significantly delays water droplet freezing, which is primarily attributed to its effective suppression of nucleation and heat transfer rates. We believe the development of this multifunctional coating, integrating superhydrophobicity, superoleophobicity, self-cleaning, anti-fouling, anti-corrosion, and anti-icing properties, holds substantial application potential and broad prospects across numerous industrial fields.

超疏水材料在低表面张力液体环境中的失效仍然是一个关键的挑战。本文以PVDF和氟化SiO2 （F-SiO2）纳米颗粒为基材，采用快速喷涂技术制备了超双疏涂层。该涂层对水、乙二醇、花生油和十六烷的接触角（CA）大于150°，滑动角（SA）小于5°，对具有大范围表面张力的液体表现出优异的拒水性。此外，由于不同表面张力的液体可以有效地去除表面的固体污染物，该涂层具有显著的防污和自清洁性能。电化学阻抗谱（EIS）和中性盐雾试验证实了其优异的防腐性能。盐雾作用960 h后，表面的超疏水性保持不变，但其超疏油性略有下降。对结冰行为的研究表明，超双疏涂层显著延缓了水滴的冻结，这主要归因于其有效抑制了成核速率和传热速率。我们相信，这种集超疏水、超疏油、自洁、防污、防腐、防冰等性能于一体的多功能涂料的开发，在众多工业领域具有巨大的应用潜力和广阔的前景。

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引用次数: 0

In-situ cation capture self-healing coating inspired by the Venus flytrap for long-term corrosion protection of buried metal: preparation, mechanism and performance 受捕蝇草启发的用于埋藏金属长期腐蚀保护的原位阳离子捕获自修复涂层：制备、机制和性能

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-01-19 DOI: 10.1016/j.porgcoat.2026.109980

Wei Du , Lanhe Zhang , Jingru Bai , Hongbo An , Jingbo Guo , Xu Lin , Yuqing Tian , Haiyan Zhang

Ti₃C₂T_x MXene exhibited excellent lamellar structure and could be used as the filler to improve corrosion resistance of waterborne epoxy (WEP) resin. Unfortunately, the aggregation tendency of MXene and its poor antioxidant stability severely limited anti-corrosion performance. Inspired by the predation behavior of Venus flytrap, PCD-MX/WEP coating with excellent dispersion and stress closure function was prepared using MXene co-modified with carbon dots (CDs) and phenanthroline (Phen) derivatives as the fillers, while its physical properties, self-healing capability and corrosion resistance were investigated. The results indicated that the low-frequency impedance modulus (|Z|_0.01Hz) of PCD-MX/WEP was 5.83 × 10⁸ Ω·cm² after 90 days of immersion in a 3.5 wt% NaCl solution, which was one to two orders of magnitude higher than that of WEP coating. After being buried outdoors for 70 days, the PCD-MX/WEP coating was not corroded, with a |Z|_0.01Hz value of 3.61 × 10⁷ Ω·cm². It exhibited excellent water resistance and wear resistance due to strong interfacial interaction and high density. According to density functional theory (DFT) calculations, both [Fe(Phen)₃]²⁺ and CD@Fe³⁺ complexes were thermodynamically stable, while hydrogen bonding between PCD-MX and WEP resin ensured favorable interfacial compatibility. The coating could achieve self-healing capability due to rapid formation of [Fe(Phen)₃]²⁺ in PCD-MX/WEP, and in-situ capture of metal cations by Phen groups could significantly inhibit the generation of corrosion products. This work offers an innovative method for preparing intelligent, environmentally friendly, and self-healing anti-corrosion coating suitable for moist soil.

Ti3C2Tx MXene具有优异的片层结构，可作为填料提高水性环氧树脂的耐蚀性。然而，MXene的聚集倾向和较差的抗氧化稳定性严重限制了其防腐性能。受捕蝇草捕食行为的启发，以碳点（CDs）和菲罗啉（Phen）衍生物共改性MXene为填料制备了具有良好分散和应力闭合功能的PCD-MX/WEP涂层，并对其物理性能、自修复能力和耐腐蚀性进行了研究。结果表明，在3.5 wt% NaCl溶液中浸泡90 d后，PCD-MX/WEP涂层的低频阻抗模量（|Z|0.01Hz）为5.83 × 108 Ω·cm2，比WEP涂层高1 ~ 2个数量级。PCD-MX/WEP涂层在室外埋藏70天后未发生腐蚀，|Z|0.01Hz值为3.61 × 107 Ω·cm2。由于界面相互作用强，密度高，具有优异的耐水性和耐磨性。根据密度泛函理论（DFT）计算，[Fe(Phen)3]2+和CD@Fe3+配合物都是热力学稳定的，而PCD-MX与WEP树脂之间的氢键保证了良好的界面相容性。由于PCD-MX/WEP中快速形成[Fe(Phen)3]2+，涂层可以实现自修复能力，并且Phen基团对金属阳离子的原位捕获可以显著抑制腐蚀产物的产生。本工作为制备适用于潮湿土壤的智能、环保、自修复防腐涂料提供了一种创新方法。

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引用次数: 0

Durable anti-fogging coatings based on dynamic oxime-urethane crosslinking 基于动态肟-聚氨酯交联的耐久防雾涂料

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-01-19 DOI: 10.1016/j.porgcoat.2026.109982

Lingling Huang , Liang Li , Zhibing Song , Xincai Wang , Huicong Mao , Hongwei Wu , Bi Xu

Conventional anti-fogging coatings are susceptible to abrasion, leading to significant deterioration of their anti-fogging performance. To address this limitation, we develop a dynamic crosslinked polymer coating that enhances abrasion resistance and self-healing capability through reversible chemical bonding. A dynamic crosslinker was initially synthesized via the reaction between dimethylglyoxime and ethacryloyloxyethyl isocyanate, and subsequently co-polymerized with methacrylic acid and methyl methacrylate. The resulting copolymer was covalently grafted onto amino-functionalized glass substrates to form a robust anti-fogging coating. The anti-fogging coating retains an average transmittance over 85% after 2000 cycles of sand-particle abrasion or 3 h of immersion in deionized water. Furthermore, the coating maintains a transmittance of over 80% when exposed to 80 °C steam for 4 h and exhibits rapid scratch healing within 15 s. These combined properties underscore the potential of the dynamic crosslinked coating for durable and high-performance anti-fogging applications.

传统的防雾涂料容易磨损，导致其防雾性能显著下降。为了解决这一限制，我们开发了一种动态交联聚合物涂层，通过可逆化学键增强耐磨性和自愈能力。通过二甲基乙氧肟与异氰酸乙酯反应合成了一种动态交联剂，随后与甲基丙烯酸和甲基丙烯酸甲酯共聚合。所得共聚物共价接枝到氨基功能化玻璃基板上，形成坚固的防雾涂层。在砂粒磨损2000次或在去离子水中浸泡3小时后，防雾涂层的平均透光率保持在85%以上。此外，当暴露在80°C蒸汽中4小时时，涂层保持超过80%的透光率，并在15秒内表现出快速的划痕愈合。这些综合性能强调了动态交联涂层在耐用和高性能防雾应用方面的潜力。

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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 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-01-17 DOI: 10.1016/j.porgcoat.2026.109972

Yunfeng Yang , Weibing Xu , Zhengfa Zhou , Haihong Ma , Fengmei Ren

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 MoS₂ and combined few-layer MoS₂ 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 × 10⁻⁵ mm³/(N·m). This result is attributed to the layered structure of few-layer MoS₂ 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.

聚酰亚胺（PI）具有耐高温和耐腐蚀性能，是一种高潜力的涂层基材。然而，用于汽车电机轴承，其附着力和耐磨性仍需改进。本研究研究了MoS2的高效剥落，并将少层MoS2与聚四氟乙烯（PTFE）结合作为增效耐磨剂，加入到PI涂料中以提高其耐磨性。最小摩擦系数（COF）为0.073，磨损率为0.0554 × 10−5 mm3/（N·m）。这一结果归因于少层二硫化钼的层状结构及其与PTFE的协同作用。PI的结构包含许多醚键和高极性的砜基团，可以结合到金属表面。所得涂层在轴承金属基板上达到0级附着力（ISO 2409:2020），同时表现出高韧性，抗冲击性和抗冷却剂性。这项工作对研究高附着力涂层和纳米级协同润滑具有重要意义。

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引用次数: 0

Research progress on lignin-based composite coatings for wood protection 木质素基复合木材防护涂料的研究进展

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-01-17 DOI: 10.1016/j.porgcoat.2026.109971

Shuyuan Chen , Xinyue Wei , Yongyue Peng , Yi Liang , Xiaohan Wang , Xiaoting Niu

Wood materials are vulnerable to degradation induced by multiple biotic and abiotic factors, and surface coating serves as the most straightforward protective approach. However, traditional petroleum-derived coatings pose environmental risks and exhibit poor biodegradability. Consequently, the development of bio-based coatings has attracted extensive research attention. Lignin, the world's second most abundant organic polymer, exhibits potential to enhance coating properties such as UV resistance, mechanical strength, and durability due to its inherent chemical structure. Nevertheless, challenges in lignin application include poor dispersibility and inadequate interfacial compatibility. This review systematically summarizes progressive modification strategies to enhance lignin's hydrophobicity, environmental durability, and stability, thereby improving its utilization efficiency. Finally, it outlines recent research progress on lignin as a coating material and multifunctional filler.

木质材料容易受到多种生物和非生物因素的降解，而表面涂层是最直接的保护方法。然而，传统的石油衍生涂料存在环境风险，生物降解性差。因此，生物基涂料的发展受到了广泛的关注。木质素是世界上含量第二丰富的有机聚合物，由于其固有的化学结构，它具有增强涂层性能的潜力，如抗紫外线、机械强度和耐久性。然而，木质素应用面临的挑战包括分散性差和界面相容性不足。本文系统地综述了提高木质素疏水性、环境耐久性和稳定性的渐进改性策略，从而提高木质素的利用效率。最后，综述了木质素作为涂料和多功能填料的研究进展。

引用次数: 0

Effect of POSS-functionalized GO arrangement pattern on the wear resistance and corrosion resistance of PI coatings poss功能化氧化石墨烯排列模式对PI涂层耐磨性和耐腐蚀性的影响

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-01-17 DOI: 10.1016/j.porgcoat.2026.109975

Zhicheng Zhang , Rui Yuan , Donghao Xiang , Qianjun Ma , Jing Yuan

This paper focused on how the arrangement of nanofillers in coatings affected their reinforcement of resins. Mono-aminopropyllsobutyl polyhedral oligomeric silsesquioxane (MAPOSS) was employed to modify graphene oxide (GO) to address their dispersion issues (PG). By controlling the spray method, the arrangement of PG within the polyimide (PI) was regulated, resulting in the preparation of M-PG/PI (spraying after uniformly mixing PG and PI), L-PG/PI (alternately spraying PI and GO to form a single-layer interleaved coating), and T-PG/PI (alternately spraying PI and GO to form a thick interleaved coating). GO/PI coatings were obtained using the same methods for comparative explorations. Further investigate the effects of nanoflakes arrangement on coating hardness, friction and wear resistance, and corrosion resistance. Research has found that the hardness of the L-PG/PI coating increased by 4% compared to the M-PG/PI, while its coefficient of friction decreased by 6.95% and the wear rate was decreased by 0.3%. However, the M-PG/PI has the best corrosion resistance with a lower corrosion current density, followed by L-PG/PI and T-PG/PI. In summary, the L-type coating formed by alternating single-layer stacking of nanosheets and resin was more conducive to enhancing tribological properties, while the uniformly mixed M-type coating was more effective at improving corrosion resistance. Conversely, thick coating with alternating stack structures has a significant negative impact on enhancing coating performance.

本文主要研究了纳米填料在涂料中的排列方式对树脂增强性能的影响。采用单氨基丙基sobutyl多面体低聚硅氧烷（MAPOSS）对氧化石墨烯（GO）进行改性，以解决其分散问题（PG）。通过控制喷涂方法，调节PG在聚酰亚胺（PI）中的排列，制备出M-PG/PI （PG与PI均匀混合后喷涂）、L-PG/PI （PI与GO交替喷涂形成单层交错涂层）和T-PG/PI （PI与GO交替喷涂形成厚交错涂层）。采用相同的方法获得了氧化石墨烯/PI涂层，并进行了对比探索。进一步研究纳米片排列对涂层硬度、摩擦磨损性能和耐蚀性能的影响。研究发现，与M-PG/PI相比，L-PG/PI涂层的硬度提高了4%，摩擦系数降低了6.95%，磨损率降低了0.3%。而M-PG/PI的耐蚀性能最好，腐蚀电流密度较低，L-PG/PI次之，T-PG/PI次之。综上所述，纳米片与树脂单层交替堆叠形成的l型涂层更有利于提高摩擦学性能，而均匀混合的m型涂层更有效地提高耐腐蚀性。相反，交替堆叠结构的厚涂层对涂层性能的提高有显著的负面影响。

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引用次数: 0

Pseudorotaxane-based hydrogel coatings with dual functions of lubrication and antibacterial activity 具有润滑和抗菌双重功能的假紫杉烷基水凝胶涂料

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-01-17 DOI: 10.1016/j.porgcoat.2026.109974

Jiqun Wang , Qiang Zhou , Yang Sun , Ming Liu , Ruipeng Zheng

The clinical performance of medical catheter components is often impaired by excessive surface friction and microbial contamination. Herein, we present a supramolecularly engineered hydrogel coating that integrates lubricity and antibacterial functionality on a single, rapidly deployable surface. The coating is constructed from a cyclodextrin-based pseudopolyrotaxane (PPR) network stabilized by dynamic host-guest interactions, combined with polyvinylpyrrolidone (PVP) for boundary lubrication and chitosan for contact-active disinfection. This resultant coating surface achieves a friction coefficient as low as ∼0.05 (under a normal load of 1.0 N) and eradicates 96% of Gram-negative Escherichia coli (E. coli) and 98% of Gram-positive Staphylococcus aureus (S. aureus). Moreover, the coating surface displays ∼90% resistance to protein fouling, excellent cytocompatibility with L929 fibroblasts, and maintains over 95% of its functional performance after sterilization, exposure to simulated physiological condition. This bio-inspired, equipment-free coating approach might offer a practical and versatile solution to enhance the safety and reliability of body-fluid-contacting medical devices.

医用导管组件的临床性能经常受到过度表面摩擦和微生物污染的影响。在此，我们提出了一种超分子工程水凝胶涂层，它将润滑和抗菌功能集成在一个单一的、快速展开的表面上。该涂层由基于环糊精的伪聚己烷（PPR）网络构成，通过动态主客体相互作用稳定，结合聚乙烯吡咯烷酮（PVP）进行边界润滑，壳聚糖进行接触活性消毒。该涂层表面的摩擦系数低至~ 0.05（在1.0 N的正常负荷下），可根除96%的革兰氏阴性大肠杆菌（E. coli）和98%的革兰氏阳性金黄色葡萄球菌（S. aureus）。此外，涂层表面具有90%的抗蛋白质污染能力，与L929成纤维细胞具有良好的细胞相容性，并且在灭菌、暴露于模拟生理条件后仍能保持95%以上的功能性能。这种受生物启发的、无需设备的涂层方法可能提供一种实用而通用的解决方案，以提高与体液接触的医疗设备的安全性和可靠性。

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引用次数: 0

Active-passive synergistic protection of LDH functionalized microcapsules in construction steel coating for enhanced anti-corrosion LDH功能化微胶囊在建筑钢涂层中的主-被动协同保护，增强其防腐性能

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-01-16 DOI: 10.1016/j.porgcoat.2026.109960

Yiwei Zhong , Xingang Wang , Weichen Tian , Tan Wang , Fubing Zou , Wenxiang Cao

To address the issue of construction steel corrosion caused by protective coating failure, this work synthesized Layered double hydroxides (LDH) functionalized microcapsules to enhance active-passive synergistic protection of coating. The composite shell of the microcapsules provides passive protection through enhanced hydrophobicity and chloride adsorption, while the core material isophorone diisocyanate (IPDI) offers active self-healing functionality. The wettability, particle morphology, physicochemical properties, and chloride adsorption behavior of the microcapsules were investigated. The state, mechanical properties, self-healing characteristics, and anti-corrosion performance of the construction steel coatings were systematically evaluated. Experimental results demonstrated that the microcapsules exhibited passive hydrophobicity and improved chloride adsorption performance by mitigating LDH agglomeration. These passive anti-corrosion properties provided enhanced resistance to the penetration of corrosive media in the steel coatings, delaying the onset of steel corrosion. Ultra-depth quantitative analysis provided evidence of the active self-healing performance in the microcapsule-containing coatings. Furthermore, neutral salt spray tests revealed that the microcapsules significantly improved the anti-corrosion performance of the steel coating in simulated chloride-rich humid atmospheric environments. Electrochemical tests recorded an exceptional inhibition efficiency above 97% for the coating with 15% microcapsule content, reaching a peak at 98.95% within 4 days. In summary, the microcapsules synergistically enhanced the anti-corrosion properties of construction steel coatings through combined active-passive protection mechanisms.

针对建筑钢材防护涂层失效造成的腐蚀问题，合成了层状双氢氧化物（LDH）功能化微胶囊，增强了涂层的主-被动协同防护能力。微胶囊的复合外壳通过增强疏水性和氯化物吸附提供被动保护，而核心材料异佛尔酮二异氰酸酯（IPDI）提供主动自愈功能。考察了微胶囊的润湿性、颗粒形态、理化性质和氯离子吸附行为。系统地评价了建筑钢涂层的状态、力学性能、自愈特性和防腐性能。实验结果表明，微胶囊具有被动疏水性，并通过减轻LDH团聚提高了氯离子吸附性能。这些被动抗腐蚀性能增强了钢涂层对腐蚀介质渗透的抵抗力，延缓了钢腐蚀的发生。超深度定量分析证明了微胶囊涂层具有积极的自愈性能。此外，中性盐雾试验表明，微胶囊显著提高了钢涂层在模拟富氯化物潮湿大气环境中的防腐性能。电化学测试结果表明，当微胶囊含量为15%时，涂层的缓蚀效率达到97%以上，4天后达到98.95%的峰值。综上所述，微胶囊通过主动式被动保护机制协同增强了建筑钢涂层的防腐性能。

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引用次数: 0