Progress in Organic Coatings最新文献_第10页

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 : 2026-04-01 Epub 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 : 2026-04-01 Epub 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

Epoxy coatings reinforced with LDH–COF nanocarriers: A dual-function strategy for barrier and active protection 用LDH-COF纳米载体增强环氧涂料：一种双重功能的屏障和主动保护策略

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.2026.109958

Laleh Kaghazchi , Reza Naderi , Bahram Ramezanzadeh

Due to the drawbacks of LDH, including limited interlayer spaces, restricted choice of corrosion inhibitors, and difficulty in dispersion in epoxy, this study selected COF with a porous structure for hybridization and fabrication of a nanocarrier with a higher loading capacity and controlled release. After the synthesis of LDH-COF (LC), the sodium glutamate-zinc was selected as the inhibitor, and the loading process was carried out. Following the characterization tests (FESEM, XRD, BET, and XPS) to demonstrate the successful synthesis, corrosion studies were carried out in two sections: saline solution and epoxy coating. The LDH sheets decorated with spherical particles of COF showed a specific surface area of twice that of LDH (112 m²/g). The presence of LC/sodium glutamate-zinc (SG-Zn) in the 3.5 wt% NaCl solution led to an inhibition efficiency of 96%. The charge transfer resistance after 5 h of immersion (147,500 Ω.cm²) and the rate of 7 after 1000 h of salt spray test revealed the desirable active protection performance of LC-SZ/EP. While the intact EP coating exhibited a noticeable decline in impedance after 70 days of exposure, the LC-SZ/EP coating maintained a stable impedance of approximately 10¹¹ Ω·cm². In addition to creating a coating system with improved barrier properties and providing active protection, dry and wet adhesion were increased by 23% and 44%, respectively, and the cathodic delamination radius was reduced by 55%.

由于LDH存在层间空间有限、缓蚀剂选择受限、难以在环氧树脂中分散等缺点，本研究选择具有多孔结构的COF进行杂化，制备了具有更高负载能力和可控释放的纳米载体。在合成LDH-COF （LC）后，选择谷氨酸锌钠作为抑制剂，进行负载过程。在进行表征测试（FESEM、XRD、BET和XPS）以证明合成成功后，在盐水溶液和环氧涂层两种环境中进行了腐蚀研究。用COF球形颗粒修饰的LDH片的比表面积（112 m2/g）是LDH片的两倍。LC/谷氨酸钠锌（SG-Zn）在3.5 wt% NaCl溶液中的抑制率为96%。LC-SZ/EP浸泡5 h后的电荷转移电阻（147,500 Ω.cm2）和盐雾1000 h后的电荷转移率为7，显示出了良好的主动保护性能。而完整EP涂层在暴露70天后阻抗明显下降，LC-SZ/EP涂层的阻抗保持稳定，约为1011 Ω·cm2。除了创建具有改进阻隔性能和提供主动保护的涂层系统外，干式和湿式附着力分别增加了23%和44%，阴极分层半径减少了55%。

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引用次数: 0

Fabrication and performance evaluation of hydrophobic flame-retardant coatings on polyester substrates via phytic acid and siloxane 植酸-硅氧烷聚酯基疏水阻燃涂料的制备及性能评价

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-04-01 Epub Date: 2025-12-29 DOI: 10.1016/j.porgcoat.2025.109914

Wei Li , Tianyu Ruan , Yingting Yin , Jinbo Yao , Xuemin Hu

With the increasing demand for safety and practical performance in textiles, the development of polyester fabrics combining flame retardancy and hydrophobic properties has become an inevitable requirement for industry advancement. This study employed an in-situ cross-linking composite process for dual-functional flame-retardant and hydrophobic coatings. A flame-retardant base coating was constructed on polyester surfaces via blending and crosslinking of phytate‑zinc and siloxane-modified waterborne polyurethane. Subsequently, the flame-retardant layer catalyzed the hydrolysis and condensation of hexadecyltrimethoxysilane on the fabric surface, thereby forming a hydrophobic coating and yielding a polyester material with both hydrophobic and flame-retardant properties. The limiting oxygen index of the modified polyester fabric increased from 19.5 % to 27.2 %. It couldn't be ignited in combustion tests and exhibited no melting droplets. In the cone calorimeter test, the peak heat release rate (PHRR), total heat release (THR), and total smoke release (TSP) decreased by 43 %, 37.8 %, and 35.3 %, respectively. Moreover, the modified polyester fabric exhibited a static water contact angle of up to 149.4°, demonstrating self-cleaning ability, abrasion resistance, and washing durability. This work provides a facile and accessible strategy for the preparation of multifunctional textiles.

随着人们对纺织品安全实用性能的要求越来越高，开发阻燃疏水性相结合的涤纶织物已成为行业发展的必然要求。本研究采用原位交联复合工艺制备双功能阻燃疏水涂料。通过植酸锌和硅氧烷改性水性聚氨酯的共混交联，在聚酯表面制备了阻燃基涂料。随后，阻燃层催化十六烷基三甲氧基硅烷在织物表面水解缩聚，从而形成疏水涂层，得到兼具疏水和阻燃性能的聚酯材料。改性涤纶织物的极限氧指数由19.5%提高到27.2%。它在燃烧试验中不能被点燃，也没有熔化的液滴。在锥形量热计试验中，峰值放热率（PHRR）、总放热率（THR）和总排烟率（TSP）分别降低了43%、37.8%和35.3%。此外，改性聚酯织物的静态水接触角高达149.4°，具有自清洁能力，耐磨性和洗涤耐久性。这项工作为多功能纺织品的制备提供了一种简便易行的策略。

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引用次数: 0

A thermosetting elastomer coating induced by imperfect matching with high toughness, high adhesion strength, and recyclability 一种由不完全匹配引起的热固性弹性体涂层，具有高韧性、高粘接强度和可回收性

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.2025.109918

Wei Tian, Jiajia Deng, Jing Zheng, Zhongrong Zhou

Thermosetting elastomers hold significant application value in the coating field due to their exceptional water and heat resistance. However, their inherent low toughness and non-recyclability severely limit their application. Inspired by the mismatch mechanism of nucleic acid bases in regulating biomolecular conformational dynamics, this study innovatively integrates flexible aliphatic chain extenders (MD) with rigid aromatic chain extenders (PD) while incorporating a dynamic crosslinker—trimeric hexamethylene diisocyanate (triHDI)—to construct a supramolecular network system with gradient energy dissipation characteristics. By precisely modulating the MD/PD molar ratio, the system forms a hexuple hydrogen bond network with differentiated binding energies, achieving a hierarchical energy dissipation mechanism under stress. The optimized PU-M2P1 (with an MD/PD molar ratio of 2:1) demonstrates outstanding comprehensive performance: a tensile strength of 63 MPa, elongation at break of 1478 %, toughness of 394 MJ/m³, and the ability to bear loads exceeding 20,000 times its own weight. The coating demonstrates an initial shear strength of 6.8 MPa on steel, and exhibits excellent water and heat resistance: the strength remains stable after 24-h water immersion and retains 4.3 MPa at 85 °C. Notably, owing to the dynamic hydrogen bonds and triHDI-derived reversible urea networks, PU-M2P1 exhibits excellent recyclability, retaining 95 % of its initial shear strength even after five dissolution-remolding cycles. This research not only provides an innovative solution to overcome the limitations of thermosetting materials in terms of toughness and recyclability but also establishes a theoretical foundation for developing next-generation high-performance sustainable coatings.

热固性弹性体由于其优异的耐水性和耐热性，在涂料领域具有重要的应用价值。然而，其固有的低韧性和不可回收性严重限制了其应用。受核酸碱基错配调节生物分子构象动力学机制的启发，本研究创新性地将柔性脂肪族扩链剂（MD）与刚性芳香族扩链剂（PD）结合，并加入动态交联剂三聚己二异氰酸酯（triHDI），构建了具有梯度能量耗散特性的超分子网络体系。通过精确调节MD/PD的摩尔比，体系形成了具有差别化结合能的六重氢键网络，实现了应力作用下的层次化能量耗散机制。优化后的PU-M2P1 （MD/PD摩尔比为2:1）具有优异的综合性能：抗拉强度为63 MPa，断裂伸长率为1478%，韧性为394 MJ/m3，能够承受超过20,000倍自重的载荷。涂层对钢的初始抗剪强度为6.8 MPa，具有优异的耐水性和耐热性：浸水24小时后强度保持稳定，85℃时强度保持4.3 MPa。值得注意的是，由于动态氢键和trihdi衍生的可逆尿素网络，PU-M2P1表现出优异的可回收性，即使在五次溶解重塑循环后仍保持95%的初始剪切强度。该研究不仅为克服热固性材料在韧性和可回收性方面的局限性提供了创新的解决方案，而且为开发下一代高性能可持续涂料奠定了理论基础。

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引用次数: 0

Study on the preparation and antifouling performance of zinc acrylate resin with laurate structure 月桂酸酯结构丙烯酸锌树脂的制备及其防污性能研究

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-03-01 Epub Date: 2025-12-19 DOI: 10.1016/j.porgcoat.2025.109896

Yanjian Wang , Zuquan Jin , Hao Xu , Xiaoying Zhang , Xinrui Wang , Yubin Cao , Penggang Wang , Liangmin Yu

To address the issue of marine biofouling and avoid the ecological toxicity risks of traditional antifouling agents, this study prepared a series of acrylate polymers with excellent antifouling performance by synergistically modifying acrylic backbones using lauryl ester groups and functional monomers (EOEOEA, DCPEA, AAEM). The introduction of long-chain alkyl groups accelerated the hydrolytic degradation of the functional groups on the coating surfaces. On one hand, it promotes the release of Zn²⁺, endowing the coating with antibacterial and anti-algal properties, and on the other hand, it enables the coating to exhibit excellent self-polishing properties. Antifouling performance tests showed that the polymer coatings possessed outstanding antibacterial and anti-algal activities: the antibacterial rate against E. coli reached 97.9 ± 0.5 %, that against P. aeruginosa reached 99.3 ± 0.5 %, and the optimal anti-algal rate was 68.1 ± 0.5 %. Furthermore, 270-day real marine immersion experiments confirmed that the surface of the polymer coatings remained almost as clean as new, demonstrating excellent long-term antifouling performance. In conclusion, this series of acrylate polymers modified with long-chain alkyl groups is expected to serve as core binders for future antifouling coatings.

为了解决海洋生物污染问题，避免传统防污剂的生态毒性风险，本研究利用十二烷基酯基团和功能单体（EOEOEA、DCPEA、AAEM）对丙烯酸酯骨架进行协同改性，制备了一系列具有优异防污性能的丙烯酸酯类聚合物。长链烷基的引入加速了涂层表面官能团的水解降解。它一方面促进Zn2+的释放，使涂层具有抗菌和抗藻的性能，另一方面使涂层具有优异的自抛光性能。防污性能测试表明，该聚合物涂层具有良好的抗菌和抗藻活性，对大肠杆菌的抑菌率为97.9%±0.5%，对铜绿假单胞菌的抑菌率为99.3%±0.5%，对藻的最佳抑菌率为68.1±0.5%。此外，270天的实际海洋浸泡实验证实，聚合物涂层的表面几乎与新的一样干净，表现出优异的长期防污性能。综上所述，该系列长链烷基改性丙烯酸酯聚合物有望成为未来防污涂料的核心粘结剂。

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引用次数: 0

Durable hierarchically porous polyurethane membrane for efficient passive daytime radiative cooling 耐用的分层多孔聚氨酯膜有效的被动日间辐射冷却

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-03-01 Epub Date: 2025-12-18 DOI: 10.1016/j.porgcoat.2025.109891

Yu He , Haosen Ma , Zhenyu Zhang , Xinxin Tian , Songchao Zhang , Guohong Tang , Shulin Zhao , Yuming Yang , Xiwen Zhang , Xiangdong Liu

Passive daytime radiative cooling (PDRC) is an advanced thermal management strategy that achieves cooling by minimizing solar absorption while efficiently radiating heat into cold outer space, offering a promising solution for global thermal regulation. Inspired by the micron-scale porous networks widely distributed in white fungus, we fabricated a hierarchically porous polyurethane (PU) membrane with high porosity and low density via a non-solvent-induced phase separation (NIPS) process combined with solvent evaporation, using a pore-forming agent and incorporating hydrophobic silica nanoparticles. The resulting membrane exhibits a solar reflectance of 95.7 % and an emissivity of 94.5 % within the atmospheric window, delivering outstanding radiative cooling performance with a maximum temperature reduction of 5.95 °C under outdoor testing. Moreover, when integrated with textiles, the membrane forms hierarchically porous fabrics that maintain considerable reflectance after friction, acid–alkali and UV-resistance tests, while hydrophobic modification further endows the material with enhanced self-cleaning capability. This durable porous PU membrane holds great potential for applications in personal thermal management, energy-efficient buildings, and electronic device cooling.

被动日间辐射冷却（PDRC）是一种先进的热管理策略，通过减少太阳能吸收来实现冷却，同时有效地将热量辐射到寒冷的外层空间，为全球热调节提供了一个有前途的解决方案。受白木耳中广泛分布的微米级多孔网络的启发，我们采用非溶剂诱导相分离（NIPS）工艺结合溶剂蒸发，使用成孔剂并加入疏水二氧化硅纳米颗粒，制备了一种高孔隙率和低密度的分层多孔聚氨酯（PU）膜。该薄膜在大气窗口内的太阳反射率为95.7%，发射率为94.5%，在室外测试中，最高温度降低5.95°C，具有出色的辐射冷却性能。此外，当与纺织品结合时，膜形成分层多孔织物，经过摩擦、酸碱和紫外线测试后仍保持相当的反射率，而疏水改性进一步增强了材料的自清洁能力。这种耐用的多孔PU膜在个人热管理、节能建筑和电子设备冷却方面具有巨大的应用潜力。

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引用次数: 0

Bio-derived photocurable resin for water resistant coatings 用于防水涂料的生物衍生光固化树脂

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-03-01 Epub Date: 2025-12-13 DOI: 10.1016/j.porgcoat.2025.109882

Ching-Tai Kuo , Tsung-Yu Chuang , Ying-Chih Liao

This study aims to develop a non-toxic and highly biocompatible photocurable bio-based water resistant coating system. Acrylated epoxidized soybean oil (AESO) was selected as the hydrophobic resin, and curcumin was employed as the photoinitiator (PI). The effects of different processing conditions and the addition of various co-initiators (glycerol and 1,6-hexanedithiol) on the crosslinking density and reaction efficiency of the cured films were investigated. The formulation and processing parameters of the coating system were systematically optimized. Kinetic analysis revealed that the system using thiol as the co-initiator exhibited a 66 % higher radical generation rate compared to the glycerol-based system, indicating a significantly improved photopolymerization efficiency. The optimized photoinitiator system (PIS) enabled complete crosslinking within 30 min, achieving a gel fraction exceeding 99 %. Thermogravimetric analysis showed that the T_10% of the cured film reached 317.1 °C, with both the gel fraction and thermal stability comparable to those cured with commercial TPO. These results confirm the excellent photocuring performance of the bio-based PIS developed in this study. In addition, biocompatibility tests demonstrated a cell viability of 93 %, confirming the high compatibility of the developed film with biological systems. When applied to various substrates, the coating significantly improved surface hydrophobic stability, with the water contact angle decreasing by only 7–8 degrees within 16 min. Moreover, the water absorption rate was substantially reduced, indicating excellent waterproofing and ink resistance performance. In summary, this study successfully developed a highly reactive and low-toxicity bio-based photocurable water resistant coating system, offering an innovative and promising solution for the development of green water resistant materials.

本研究旨在开发一种无毒、高生物相容性的光固化生物基防水涂料体系。以丙烯酸环氧大豆油（AESO）为疏水树脂，姜黄素为光引发剂（PI）。考察了不同的工艺条件和不同的共引发剂（甘油和1,6-己二硫醇）的加入对固化膜交联密度和反应效率的影响。对涂层体系的配方和工艺参数进行了系统优化。动力学分析表明，与基于甘油的体系相比，以硫醇为共引发剂的体系自由基生成率提高了66%，表明光聚合效率显著提高。优化后的光引发剂体系（PIS）在30分钟内实现了完全交联，凝胶分数超过99%。热重分析表明，固化膜的T10%达到317.1°C，凝胶分数和热稳定性与商用TPO固化膜相当。这些结果证实了本研究开发的生物基PIS具有良好的光固化性能。此外，生物相容性测试表明，细胞存活率为93%，证实了显影膜与生物系统的高相容性。应用于各种基材时，涂层表面疏水稳定性显著提高，16 min内水接触角仅降低7-8度。此外，吸水率大幅降低，显示出优异的防水和耐油墨性能。综上所述，本研究成功开发了一种高活性、低毒的生物基光固化防水涂料体系，为绿色防水材料的发展提供了一种创新和有前景的解决方案。

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引用次数: 0

Design of a functional hydrophobic thin film with low tritium memory effect for high sensitivity ionization chamber 高灵敏度电离室用低氚记忆效应功能性疏水薄膜的设计

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-03-01 Epub Date: 2025-12-19 DOI: 10.1016/j.porgcoat.2025.109898

Hao-Wei Yang , Fan Yang , Lin-Sen Zhou , Wen Fang , Chen Zhao , Yi-Ying Zhao , Ci-Gang Xu , Chang-An Chen , Yan Shi

The tritium memory effect in ionization chambers, predominantly due to tritiated water (HTO) adsorption, significantly compromises measurement accuracy. This study proposed a hydrophobic silica-based thin film as an inexpensive wall-coating material to efficiently mitigate this issue, comparing its performance with that of conventional stainless steel and gold-plated substrates. Fabricated via plasma-enhanced chemical vapor deposition method, the plasma-polymerized hexamethyldisiloxane (pp-HMDSO) film was evaluated through water vapor adsorption, XPS, FTIR, theoretical simulation, and EIS fitting. Results demonstrated that pp-HMDSO sample exhibited markedly higher desorption ratio (90.91 % at 25 °C and 54.05 % at 60 °C). The enhanced performance was attributed to the low surface energy of silica-based films, which minimized water vapor adsorption and facilitated rapid desorption, thereby mitigating the tritium memory effect. Density functional theory calculations and molecular dynamic methods were utilized to explore the adsorption behaviors of water molecules on different substrates. The theoretical results demonstrated that pp-HMDSO and Au surface have much weaker interactions with water molecule in comparable with Fe surface, wherein pp-HMDSO exhibit lowest adsorption capacity and diffusion coefficient. This work indicates that the hydrophobic pp-HMDSO film can effectively suppress the surface adsorption of HTO, offering a viable solution to mitigate tritium memory effects in high-precision radiometric applications.

氚记忆效应在电离室，主要是由于氚化水（HTO）吸附，显著损害测量精度。本研究提出了一种疏水硅基薄膜作为一种廉价的壁涂材料，以有效地缓解这一问题，并将其性能与传统不锈钢和镀金基板进行了比较。采用等离子体增强化学气相沉积法制备了等离子体聚合六甲基二硅氧烷（pp-HMDSO）薄膜，通过水蒸气吸附、XPS、FTIR、理论模拟和EIS拟合对其进行了评价。结果表明，pp-HMDSO样品具有较高的解吸率（25℃时为90.91%，60℃时为54.05%）。硅基薄膜具有较低的表面能，可以最大限度地减少水蒸气吸附，促进快速脱附，从而减轻氚记忆效应。利用密度泛函理论计算和分子动力学方法研究了水分子在不同基质上的吸附行为。理论结果表明，相对于Fe表面，pp-HMDSO与Au表面与水分子的相互作用弱得多，其中pp-HMDSO的吸附能力和扩散系数最低。本研究表明疏水pp-HMDSO膜可以有效抑制HTO的表面吸附，为高精度辐射测量应用中减轻氚记忆效应提供了可行的解决方案。

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引用次数: 0

Synergistic antibacterial and anti-adhesion effects of zinc-based eugenol-modified composite coatings for marine antifouling applications 海洋防污用锌基丁香酚改性复合涂料的协同抗菌和抗粘着作用

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2026-03-01 Epub Date: 2025-12-10 DOI: 10.1016/j.porgcoat.2025.109872

Xinyue Liang , Xu Zhang , Fa-Qian Liu

Marine biofouling severely impedes the development of marine engineering, while existing coatings suffer from inadequate environmental compatibility and insufficient long-term efficacy. To address these limitations, this study reported the fabrication of eugenol-functionalized ZnO (ZnO@Eug) via a one-pot hydrothermal approach. Subsequently, ZnO@Eug was further modified with hexadecyl trimethyl ammonium bromide (CTAB) via electrostatic interactions to yield the ZnO@Eug@CTAB composite filler, which was then incorporated into a polydimethylsiloxane (PDMS) matrix to fabricate the ZnO@Eug@CTAB/PDMS (ZECP) composite coating. Benefiting from the synergistic effects of Zn²⁺, eugenol, and CTAB, the ZECP coating achieved 100 % antibacterial efficiency against E. coli after 24 h of co-cultivation with bacterial suspensions. Anti-algal and anti-marine organism experiments demonstrated that the ZECP coating effectively suppressed Chlorella colonization and prevented the attachment of conchs. Moreover, the ZECP coating displayed controlled Zn²⁺ release behavior while maintaining a high water contact angle of 121° and low surface free energy of 20.2 mN·m⁻¹, thereby contributing to its long-term antifouling performance. Based on the dual functions of active antibacterial and anti-marine organism adhesion, the ZECP coating can be applied in the field of environmentally friendly marine antifouling coatings.

海洋生物污染严重阻碍了海洋工程的发展，而现有的涂料存在环境相容性不足和长期有效性不足的问题。为了解决这些限制，本研究报告了通过一锅水热法制备丁香酚功能化ZnO （ZnO@Eug）。随后，将ZnO@Eug用十六烷基三甲基溴化铵（CTAB）通过静电相互作用进一步修饰，得到ZnO@Eug@CTAB复合填料，然后将其掺入聚二甲基硅氧烷（PDMS）基体中，制备ZnO@Eug@CTAB/PDMS （ZECP）复合涂层。利用Zn2+、丁香酚和CTAB的协同作用，ZECP包被与菌悬液共培养24 h后，对大肠杆菌的抑菌率达到100%。抗藻和抗海洋生物实验表明，ZECP涂层能有效抑制小球藻定植，阻止海螺的附着。此外，ZECP涂层具有可控的Zn2+释放行为，同时保持了121°的高水接触角和20.2 mN·m−1的低表面自由能，从而有助于其长期防污性能。基于活性抗菌和防海洋生物粘附的双重功能，ZECP涂层可应用于环保型海洋防污涂料领域。

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