Progress in Organic Coatings最新文献

Robust superhydrophobic bilayer coating: Long-term anti-corrosion and anti-fouling resistance enabled by POSS star cross-linking and fluoride-modified SiO2 nanoparticles specific synergies 坚固的超疏水双层涂层：通过 POSS 星形交联和氟化改性 SiO2 纳米粒子的特定协同作用实现长期防腐防污性能

IF 6.5 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2024-11-17 DOI: 10.1016/j.porgcoat.2024.108919

Lijian Liu , Haihua Wang , Xixi Hao , Qinghua Zhang , Guiqiang Fei , Yihao Duan , Liyu Sun

Durable superhydrophobic coating has become frequently investigated and reported, however, achieving concurrent mechanical robustness, long-term anti-corrosive and anti-fouling functionalities remains a formidable challenge. In this study, a polymer nanocomposite coating was created through the star crosslinking of polyhedral oligomeric silsesquioxane (POSS) and fluorinated polyimide (FPI) prepolymer. Subsequently, a superhydrophobic bilayer was created by using the aforementioned coating as base coating, hydrophobic polyolefin (POA) with high toughness and strong adhesive was selected to binder fluoride-modified SiO₂ nanoparticles (F-SiO₂) to construct robust superhydrophobic topcoat and simultaneously enhance the interfacial bonding between topcoat and base coating. Notably, the bilayer superhydrophobic coating exhibited robust mechanical durability, retaining its superhydrophobicity even after 100 cycles of sandpaper friction and 80 cycles of tape peeling. After a 50-day salt spray test, the superhydrophobic FPI/POSS@POA/F-SiO₂ bilayer coating demonstrated exemplary corrosion resistance, the low frequency impedance modulus (|Z|_0.01Hz) was still as high as 7.04 × 10¹⁰ Ω·cm², which is one order of magnitude higher than that of FPI/POSS-4 coating (3.17 × 10⁹ Ω·cm²) and three orders of magnitude higher than pure FPI coating (1.82 × 10⁷ Ω·cm²). In addition, the superhydrophobic coating also demonstrated self-cleaning and anti-fouling properties. The enhanced comprehensive performance for the superhydrophobic FPI/POSS@POA/F-SiO₂ bilayer coating can be ascribed to the improved compactness and physical barrier resulted from the POSS star crosslinking, as well as the strong inhibitory effect endowed by the robust superhydrophobic surface. This study offers a fresh perspective on the preparation of superhydrophobic bilayer coatings with outstanding long-term anti-corrosive and anti-fouling attributes, showcasing their potential and prospective practical applications.

耐用的超疏水涂层已成为研究和报道的热点，然而，要同时实现机械坚固性、长期防腐和防污功能仍是一项艰巨的挑战。在这项研究中，通过星形交联聚低聚硅氧烷（POSS）和氟化聚酰亚胺（FPI）预聚物，制备了一种聚合物纳米复合涂层。然后，以上述涂层为基底涂层，选择韧性高、粘合力强的疏水性聚烯烃（POA）作为氟化物改性二氧化硅纳米颗粒（F-SiO2）的粘合剂，形成超疏水双层涂层，以构建坚固的超疏水面涂层，同时增强面涂层与基底涂层之间的界面粘合力。值得注意的是，双层超疏水涂层表现出很强的机械耐久性，即使在砂纸摩擦 100 次和胶带剥离 80 次后仍能保持其超疏水性。经过 50 天的盐雾测试后，超疏水 FPI/POSS@POA/F-SiO2 双层涂层表现出卓越的耐腐蚀性，低频阻抗模量（|Z|0.01Hz）仍高达 7.04 × 1010 Ω-cm2，比 FPI/POSS-4 涂层（3.17 × 109 Ω-cm2）高出一个数量级，比纯 FPI 涂层（1.82 × 107 Ω-cm2）高出三个数量级。此外，超疏水涂层还具有自清洁和防污特性。FPI/POSS@POA/F-SiO2双层超疏水性涂层综合性能的提高可归因于POSS星型交联带来的致密性和物理屏障的改善，以及坚固的超疏水性表面所赋予的强大抑制作用。该研究为制备具有出色的长期防腐和防污特性的超疏水双层涂层提供了一个全新的视角，展示了其潜在的实际应用前景。

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引用次数: 0

High gas barrier of clay/graphene oxide/chitosan multilayer nanocoatings at high humidity 粘土/氧化石墨烯/壳聚糖多层纳米涂层在高湿度条件下的高气体阻隔性

IF 6.5 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2024-11-16 DOI: 10.1016/j.porgcoat.2024.108929

Alessia Cabrini , Sarah G. Fisher , Ethan T. Iverson , Pierfrancesco Cerruti , Luigi De Nardo , Gennaro Gentile , Marino Lavorgna , Jaime C. Grunlan

Improving the barrier properties of bio-based polymers is very desirable for food packaging applications. With this in mind, a gas barrier thin film comprised of graphene oxide (GO), montmorillonite (MMT) clay, and chitosan (CH) was prepared using layer-by-layer assembly. A 120 nm thick CH/MMT/CH/GO quadlayer nanocoating reduces the oxygen permeability of a 179 μm polyethylene terephthalate sheet from 17.6×10⁻¹⁶ to 0.21×10⁻¹⁶ cm³ cm cm⁻² s⁻¹ Pa⁻¹ at 0 % RH, and from 13.4×10⁻¹⁶ to 0.42×10⁻¹⁶ cm³ cm cm⁻² s⁻¹ Pa⁻¹ at 90 % RH. This two orders of magnitude reduction in permeability in both dry and high humid conditions is caused by the hybrid multilayer structure, with a high loading of oriented, densely packed nanoplatelets. This study demonstrates the potential of combining different anionic nanoplatelets in the assembled nanocoatings to improve the gas barrier performance of chitosan at high humidity.

在食品包装应用中，提高生物基聚合物的阻隔性能是非常理想的。有鉴于此，我们采用逐层组装法制备了一种由氧化石墨烯 (GO)、蒙脱石 (MMT) 粘土和壳聚糖 (CH) 组成的气体阻隔薄膜。在 0 % 相对湿度条件下，120 nm 厚的 CH/MMT/CH/GO 四层纳米涂层可将 179 μm 聚对苯二甲酸乙二醇酯薄片的氧气渗透率从 17.6×10-16 降至 0.21×10-16 cm3 cm-2 s-1 Pa-1；在 90 % 相对湿度条件下，氧气渗透率从 13.4×10-16 降至 0.42×10-16 cm3 cm-2 s-1 Pa-1。在干燥和高湿度条件下，渗透率都降低了两个数量级，这是因为混合多层结构中含有大量定向、密集排列的纳米片。这项研究表明，在组装的纳米涂层中结合不同的阴离子纳米颗粒可以提高壳聚糖在高湿度条件下的气体阻隔性能。

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引用次数: 0

Rapid UV/thermal curing of waterborne difunctional-group melamine resin coating and its excellent functionality 水性双官能团三聚氰胺树脂涂料的快速紫外线/热固化及其优异的功能性

IF 6.5 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2024-11-15 DOI: 10.1016/j.porgcoat.2024.108932

Lijiu Cao , Xu Ma , Yufang Chen , Shuai Wang , Yue Hu , Yunpeng Gong , Tao Jin

Melamine resin coatings (MF coatings) are usually cured by thermal curing (TC) or acid/ thermal curing (ATC) method. That exists some defects such as operation cumbersomely, curing slowly, easy to shrink and brittle, etc., which hinders the practical applications of MF in the field of painting. In this paper, a waterborne melamine resin oligomer (dMFO) with a difunctional structure (allyl group and hydroxymethyl group) was designed and prepared. The gelation of the dMFO can quickly accomplish and obtain a cured MF coating with excellent functionality by the “UV/thermal “curing method. The results show that when the dosage of photoinitiator 1-hydroxy-cyclohexyl-phenyl ketone (Pi184) is 3 % relative to the mass of dMFO, the MF coating can be cured in about 11 min. The tensile strength of the coating reaches 8.24 MPa, the impact resistance height is 180 mm, the adhesion is up to 5.51 MPa, the pencil hardness is 5H, the water contact angle can reach 113°, the water resistance exceeds 14 h, and the limiting oxygen index is 30.87 %. The MF coating was prepared from dMFO displays excellent characteristics such as structural toughness, self-hydrophobicity, and intrinsic flame retardancy. In addition, the MF coating also has good self-cleaning performance, anti-corrosion property, and chemical corrosion resistance. The analysis suggests that the MF coating has an in-situ interpenetrating network structure (IPN) formed by the interpenetration of thermoplastic segments and thermosetting network structures. The effective synergy between the molecular chain segments of these two structures facilitates the structural optimization and performance enhancement of the MF coating. The work presented in this paper has laid a key technical foundation for the large-scale application of MF coatings, which holds promising prospects for industrial application and significant commercial value.

三聚氰胺树脂涂料（MF 涂料）通常采用热固化（TC）或酸/热固化（ATC）方法固化。这种固化方法存在操作繁琐、固化速度慢、易收缩、脆性大等缺陷，阻碍了三聚氰胺树脂涂料在涂装领域的实际应用。本文设计并制备了一种具有双官能团结构（烯丙基和羟甲基）的水性三聚氰胺树脂低聚物（dMFO）。通过 "紫外/热 "固化方法，dMFO 可以快速凝胶化，并获得具有优异功能性的固化 MF 涂料。结果表明，当光引发剂 1-羟基-环己基苯基酮（Pi184）的用量为 dMFO 质量的 3%时，中频涂层可在约 11 分钟内固化。涂层的拉伸强度达到 8.24 MPa，抗冲击高度为 180 mm，附着力高达 5.51 MPa，铅笔硬度为 5H，水接触角可达 113°，耐水性超过 14 h，极限氧指数为 30.87 %。用 dMFO 制备的 MF 涂层具有结构韧性、自疏水性和本征阻燃性等优异特性。此外，MF 涂层还具有良好的自清洁性能、防腐性能和耐化学腐蚀性能。分析表明，MF 涂层具有由热塑性片段和热固性网络结构相互渗透形成的原位互穿网络结构（IPN）。这两种结构的分子链段之间的有效协同作用促进了中频涂层的结构优化和性能提升。本文介绍的工作为中频涂层的大规模应用奠定了关键技术基础，具有广阔的工业应用前景和巨大的商业价值。

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引用次数: 0

Self-healable spray paint coatings based on polyurethanes with thermal stability: Effects of disulfides and diisocyanates 基于具有热稳定性的聚氨酯的自修复喷漆涂料：二硫化物和二异氰酸酯的影响

IF 6.5 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2024-11-14 DOI: 10.1016/j.porgcoat.2024.108931

Sebin Jin , Hyeonyeol Jeon , Seon-Mi Kim , Minkyung Lee , Chanwook Park , Yongtae Joo , Jaesik Seo , Dongyeop X. Oh , Jeyoung Park

As the interest in self-healing and scratch-resistant coatings has increased, studies on incorporating dynamic covalent bonds in protective elastomeric coating materials have increased. The incorporation of reversible disulfide bonds into polyurethane (PU) elastomers imparts self-healing property and recyclability, which not only reduce maintenance costs but also extend the service lives of the coated products. In this study, we developed two-component self-healing PU spray paint materials with superior healing properties and thermal stability. This achievement involved the synthesis of oligomeric precursor diols of PU incorporating disulfides of different molecular weights and controlling the hardener ratio in the final spray-coating material. Variations in the scratch-healing ability and stability of the coating films were investigated based on the type of the disulfide employed in the aromatic and aliphatic moieties and the combination of diisocyanates. Among the tested specimens, a coating film fabricated from a precursor denoted as H13 (molar feed ratio of isophorone diisocyanate:bis(4-hydroxyphenyl)disulfide:carbonate-type soft diol = 10:5:8) cured with a hardener (molar ratio of methylene diphenyl diisocyanate:isophorone diisocyanate = 1:1) showed excellent healing performance, showing >95 % scratch recovery within 2 h at 30 °C. It also exhibited transparency, solvent resistance, and thermal stability.

随着人们对自愈合和抗划伤涂层的兴趣日益浓厚，有关在保护性弹性涂层材料中加入动态共价键的研究也日益增多。在聚氨酯（PU）弹性体中加入可逆二硫键可赋予其自愈合性能和可回收性，这不仅能降低维护成本，还能延长涂层产品的使用寿命。在这项研究中，我们开发出了具有优异愈合性能和热稳定性的双组分自愈合聚氨酯喷漆材料。这项成果涉及合成含有不同分子量二硫化物的聚氨酯低聚物前体二元醇，并控制最终喷涂材料中的固化剂比例。根据芳香族和脂肪族分子中二硫化物的类型以及二异氰酸酯的组合，研究了涂膜划痕愈合能力和稳定性的变化。在测试的试样中，由 H13 前体（异佛尔酮二异氰酸酯：双（4-羟基苯基）二硫化物：碳酸酯类软二醇的摩尔进料比 = 10:5:8）与固化剂（亚甲基二苯基二异氰酸酯：异佛尔酮二异氰酸酯的摩尔比 = 1:1）固化而成的涂膜表现出优异的愈合性能，在 30 °C 下 2 小时内刮痕恢复率达到 95%。它还具有透明度、耐溶剂性和热稳定性。

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引用次数: 0

Preparation and oil-water separation performance of lignin-based durable superhydrophobic petaloid structure inspired from springtail cuticle surface 从春尾鱼角质层表面获得灵感的木质素基持久超疏水花瓣状结构的制备及其油水分离性能

IF 6.5 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2024-11-14 DOI: 10.1016/j.porgcoat.2024.108907

Mingdong Yu, Chunyue Ma, Changmei Liao, Yining Wang, Dongzhi Wang

Inspired by the natural surface adaptations of springtails (Collembola), we developed a novel lignin-coated nanoparticle system with a petaloid porous structure that mimics their air-retention and water-repelling capabilities. The biomimetic materials exhibit remarkable superhydrophobicity (CA_water ≈ 160°) and superoleophilicity (CA_oil ≈ 0°), crucial for enhancing selective oil adsorption. The unique structure traps air, ensuring excellent buoyancy and stability even in submerged conditions, while offering resistance to aggressive solvents. Additionally, the nanoparticles possess magnetic responsiveness, enabling precise manipulation in oil-water separation processes. This functionality is critical for a variety of industrial and environmental applications. In performance tests, the material achieved an oil-water separation efficiency of 97 %, with a permeation flux of 850 Lm⁻² h⁻¹. Even after multiple cycles, it maintained high separation efficiency and robustness, enduring chemically harsh environments. Our approach presents a highly durable and efficient solution to complex oil-water separation challenges, advancing the field of smart material applications.

受春蜱（Collembola）自然表面适应性的启发，我们开发了一种新型木质素涂层纳米粒子系统，该系统具有花瓣状多孔结构，可模仿春蜱的滞气和拒水能力。这种仿生物材料具有显著的超疏水性（CAwater ≈ 160°）和超亲油性（CAoil ≈ 0°），这对提高油的选择性吸附至关重要。独特的结构可捕获空气，即使在浸没条件下也能确保出色的浮力和稳定性，同时还能耐受侵蚀性溶剂。此外，纳米颗粒还具有磁响应性，可在油水分离过程中进行精确操作。这种功能对于各种工业和环境应用至关重要。在性能测试中，该材料的油水分离效率达到 97%，渗透通量为 850 Lm-2 h-1。即使经过多次循环，它仍能保持较高的分离效率和坚固性，经受住了恶劣的化学环境考验。我们的方法为复杂的油水分离难题提供了一种高度耐用和高效的解决方案，推动了智能材料应用领域的发展。

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引用次数: 0

Novel fluorobenzimidazole-assisted heat resistant anticorrosion copper surface for high-density interconnected printed circuit boards 用于高密度互连印刷电路板的新型氟苯并咪唑辅助耐热防腐铜表面

IF 6.5 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2024-11-13 DOI: 10.1016/j.porgcoat.2024.108877

Xuewen Zhuang , Xingshang Weng , Zhongming Chen , Weijian Chen , Zongmei Yang , Xiaochun Zhang

Self-assembled organic films of imidazole derivatives are vital for metal surface modification, but their effectiveness in the commercialization of high-density copper interconnects remains limited. To enhance thermal and chemical stability, we synthesized five fluorobenzimidazole monomers by integrating fluorine into the imidazole structure using a solvent-free method. Notably, the 5-chloro-2-(2-chloro-4-fluorobenzyl)-1H-benzo[d]imidazole (5224FIM) demonstrated an impressive inhibition efficiency of 95.00 %, forming a robust barrier approximately 4450 Å thick, which effectively withstands damage under high temperature and humidity. X-ray photoelectron spectroscopy (XPS) analysis revealed that the oxygen content in sample 5442FIM was 9.02 %, the lowest among the samples, while the nitrogen content was 8.19 %, indicating a substantial presence of imidazole molecules. In comparison to non-substituted benzimidazole films, these fluorine-enhanced self-assembled films on copper exhibited superior heat and moisture resistance. Notably, printed circuit boards coated with 5224FIM demonstrated excellent performance in 72-h salt spray and 245 °C tin immersion solderability tests, highlighting their enhanced surface protection capabilities.

咪唑衍生物自组装有机薄膜对金属表面改性至关重要，但其在高密度铜互连器件商业化中的有效性仍然有限。为了提高热稳定性和化学稳定性，我们采用无溶剂方法将氟融入咪唑结构中，合成了五种氟苯并咪唑单体。值得注意的是，5-氯-2-（2-氯-4-氟苄基）-1H-苯并[d]咪唑（5224FIM）的抑制效率高达 95.00%，形成了约 4450 Å 厚的坚固屏障，能有效抵御高温高湿环境下的损坏。X 射线光电子能谱（XPS）分析表明，样品 5442FIM 中的氧含量为 9.02%，是所有样品中最低的，而氮含量为 8.19%，表明其中含有大量咪唑分子。与非取代的苯并咪唑薄膜相比，这些氟增强型铜自组装薄膜具有优异的耐热性和防潮性。值得注意的是，涂有 5224FIM 的印刷电路板在 72 小时盐雾和 245 °C 锡浸泡可焊性测试中表现出色，突显了其增强的表面保护能力。

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引用次数: 0

Styrene-butadiene-styrene-based nanocomposites as self-healable antibacterial coatings 苯乙烯-丁二烯-苯乙烯基纳米复合材料作为自愈合抗菌涂层

IF 6.5 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2024-11-13 DOI: 10.1016/j.porgcoat.2024.108914

Aatif Ijaz , Ghazaleh Azizi Saadatlou , Cansu M. Yenici , Yagiz Morova , Pinar Tatar Guner , Alphan Sennaroglu , A. Levent Demirel , Safacan Kolemen

This study presents the development of self-healing antibacterial polymeric composite coatings to minimize infection risks and ensure adaptability for large spaces by using readily available materials and scalable, efficient fabrication techniques. These coatings were prepared by incorporating 300–400 nm solid silica particles capped with a polydopamine layer of ~40 nm thickness and decorated with silver nanoparticles within a styrene-butadiene-styrene matrix. The aqueous dispersion of filler particles upon exposure to near-infrared 808 nm light exhibits a temperature increase of ~15 °C caused by the photothermal activity of polydopamine in synergy with silver nanoparticles. This photothermal activity of fillers helps to achieve the complete healing of micron-sized scratches of nanocomposite films with light intensities as low as 1.19 W/cm² over 10 min (total energy fluence of 716 J/cm²), demonstrating promising results for real-world applications. Additionally, the coatings exhibit significant enhancement in antibacterial activity, reducing bacterial colony counts by >99.9 %. These findings underscore the potential of such coatings to reduce the risk of pathogenic infections in clinical settings while offering sustainable and eco-friendly solutions.

本研究介绍了自愈合抗菌聚合物复合涂层的开发情况，通过使用现成的材料和可扩展的高效制造技术，最大限度地降低感染风险并确保大空间的适应性。这些涂层是通过在苯乙烯-丁二烯-苯乙烯基质中加入 300-400 纳米固体二氧化硅颗粒，再盖上约 40 纳米厚的聚多巴胺层，并用纳米银粒子装饰而制备的。填料颗粒的水分散体在受到近红外 808 纳米光照射时，温度会升高约 15 °C，这是由于聚多巴胺与纳米银粒子协同作用产生的光热效应。填料的这种光热活性有助于实现纳米复合薄膜微米级划痕的完全愈合，光强度低至 1.19 W/cm2，持续时间为 10 分钟（总能量通量为 716 J/cm2），为实际应用展示了良好的效果。此外，涂层的抗菌活性显著增强，细菌菌落数减少了 99.9%。这些发现强调了这种涂层在降低临床病原体感染风险方面的潜力，同时还提供了可持续的环保解决方案。

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引用次数: 0

Exploring the potential of plant extracts as corrosion inhibitors: A comprehensive review 探索植物提取物作为缓蚀剂的潜力：全面综述

IF 6.5 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2024-11-12 DOI: 10.1016/j.porgcoat.2024.108915

Yuanxing Li , Yiwen Chen , Caoxu Wang , Yan Li , Yue Wu

With the increasing importance of green chemistry and demand for sustainable technologies, plant extract-based corrosion inhibition systems have garnered significant attention. Previous reviews summarized the performance of various plant extracts as corrosion inhibitors but lacked systematic comparison and identification of key chemical constituents. To address these shortcomings, this review first outlines the extraction process of plant extracts as corrosion inhibitors, followed by a general overviewof test methods and possible working mechanisms used to investigate their corrosion inhibition properties. Emphasis is then laid on their applications in marine and acid environments, presenting differences in corrosion inhibition efficiency and investigation of effective chemicals in various extracts. Moreover, we discuss the long-term stability of plant extracts and synergistic effects with other corrosion inhibitors, and we conclude by suggesting current shortcomings in the field to guide the design and application of novel green corrosion inhibitors in the future.

随着绿色化学的重要性和对可持续技术的需求不断增加，基于植物提取物的缓蚀系统受到了极大关注。以往的综述总结了各种植物提取物作为缓蚀剂的性能，但缺乏系统的比较和关键化学成分的鉴定。针对这些不足，本综述首先概述了作为缓蚀剂的植物提取物的提取过程，然后概述了用于研究其缓蚀特性的测试方法和可能的工作机制。然后重点介绍了它们在海洋和酸性环境中的应用，介绍了缓蚀效率的差异，以及对各种提取物中有效化学成分的研究。此外，我们还讨论了植物萃取物的长期稳定性以及与其他缓蚀剂的协同效应，最后提出了该领域目前存在的不足，以指导未来新型绿色缓蚀剂的设计和应用。

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引用次数: 0

Recent advances in the application of chitosan nanoparticles for the modification of textiles 应用壳聚糖纳米粒子改性纺织品的最新进展

IF 6.5 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2024-11-12 DOI: 10.1016/j.porgcoat.2024.108910

Wendhy Carolina Vicente, Larissa Nardini Carli, Patrícia Bulegon Brondani

The textile industry constantly demands innovative products, including developing functional textiles that can be produced by several finishing processes, maintaining the desired qualities of the fabric, and modifying the undesired ones. Methodologies applying chitosan nanoparticles (ChiNps) on the fiber are attracting much interest. Chitosan is a renewable, biocompatible, and biodegradable polysaccharide capable of providing antimicrobial activity to textiles. Besides that, ChiNps can improve dyeing processes and fabric resistance and confer other features, such as flame-retardant capacity and UV protection. Despite the importance of textile modification using ChiNps, the literature needs a review focused on chemical interactions and methods, crossing information with properties and durability. This review presents the main techniques used to prepare ChiNps for further application on textiles. It focuses on the recent advances and perspectives of the publications of the last five to six years concerning the general application of ChiNps to the surface of textiles. The publications are organized by the type of ChiNps interaction with the fabric, including intermolecular interaction or covalent bonds and research combining ChiNps with metallic nanoparticles. Most studies use ionic cross-linking to form ChiNps, a more straightforward methodology. Furthermore, ChiNps are incorporated into the surface of fabrics, primarily using intermolecular interactions. For this reason, pure synthetic fabrics, which are less polar, are much less precisely used with ChiNps. However, some promising reactions might overcome these inconveniences, including covalent bonds or the association of ChiNps and metal or metal oxide nanoparticles.

纺织业不断要求创新产品，包括开发可通过多种整理工艺生产的功能性纺织品，保持织物的理想品质，并改变不理想的品质。在纤维上应用壳聚糖纳米颗粒（ChiNps）的方法备受关注。壳聚糖是一种可再生、生物相容性好、可生物降解的多糖，能够为纺织品提供抗菌活性。此外，壳聚糖还能改善染色工艺和织物的抗性，并赋予织物其他特性，如阻燃性和防紫外线性。尽管使用 ChiNps 对纺织品进行改性非常重要，但仍需要对文献进行回顾，重点关注化学相互作用和方法，以及与特性和耐久性相关的信息。本综述介绍了为进一步应用于纺织品而制备氯化萘的主要技术。重点关注过去五六年中有关在纺织品表面普遍应用 ChiNps 的出版物的最新进展和前景。这些出版物按 ChiNps 与织物的相互作用类型进行了分类，包括分子间相互作用或共价键，以及 ChiNps 与金属纳米粒子的结合研究。大多数研究采用离子交联法形成 ChiNps，这是一种更为直接的方法。此外，ChiNps 主要通过分子间相互作用融入织物表面。因此，极性较弱的纯合成织物与 ChiNps 的结合就不那么精确。不过，一些有前景的反应可能会克服这些不便，包括共价键或 ChiNps 与金属或金属氧化物纳米颗粒的结合。

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引用次数: 0

Multifunctional bionic hydrophobic cotton fabrics modified with cationic nano-SiO2/polyurethane acrylate 用阳离子纳米二氧化硅/丙烯酸聚氨酯改性的多功能仿生疏水棉织物

IF 6.5 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings

Pub Date : 2024-11-12 DOI: 10.1016/j.porgcoat.2024.108912

Biao Gu, Hanzhe Song, Xiaodong Jiang, Changhai Xu, Jinmei Du

In recent years, SiO₂ has gained widespread application in the hydrophobic finishing of cotton textiles due to its exceptional versatility and robust controllability. However, the inherent negative charge on the surface of SiO₂ results in inadequate adhesion on fabrics and incompatibility with cationic hydrophobic agents. In this work, a cationic nano-silica (DI-SiO₂) material was prepared by introducing cationic groups and reactive groups onto the silica surface using silane coupling agents to enhance the compatibility between silica and cationic polyurethane acrylate as well as the durability of hydrophobic cotton fabrics. It was found that DI-SiO₂ exhibits a significantly high zeta potential (40 mV ± 5 mV) and excellent compatibility in polyurethane acrylate dispersions without obvious demulsification and sedimentation after 24 h of storage. The as-prepared water-repellent agent consisting of DI-SiO₂ and polyurethane acrylate could chemically bond to cotton fabrics, thereby forming a uniform, robust, and long-lasting water-repellent film on the fabric surface with the water contact angle (WCA) exceeding 150°. In addition, the hydrophobic cotton fabric exhibited superior robustness and durability, maintaining high water repellency (WCA > 125°) after treatment with acids, alkalis, organic solvents, UV irradiation, abrasion, and repeated washing. More importantly, the modified cotton fabric possesses excellent self-cleaning, breathability, moisture permeability, and oil-water separation properties. These outstanding features render it highly valuable for applications in fields such as mountaineering and camping.

近年来，二氧化硅因其卓越的多功能性和强大的可控性，在棉纺织品的疏水整理中得到了广泛应用。然而，二氧化硅表面固有的负电荷导致其在织物上的附着力不足，并且与阳离子疏水剂不相容。本研究利用硅烷偶联剂在二氧化硅表面引入阳离子基团和活性基团，制备了阳离子纳米二氧化硅（DI-SiO2）材料，以增强二氧化硅与阳离子聚氨酯丙烯酸酯的相容性以及疏水性棉织物的耐久性。研究发现，DI-SiO2 在聚氨酯丙烯酸酯分散体中表现出明显较高的 zeta 电位（40 mV ± 5 mV）和出色的相容性，在储存 24 小时后不会出现明显的破乳化和沉淀现象。所制备的由二氧化硅和聚氨酯丙烯酸酯组成的憎水剂可与棉织物发生化学键合，从而在织物表面形成一层均匀、坚固、持久的憎水膜，水接触角（WCA）超过 150°。此外，疏水性棉织物表现出卓越的坚固性和耐久性，在经过酸、碱、有机溶剂、紫外线照射、磨损和反复洗涤处理后，仍能保持较高的憎水性（WCA > 125°）。更重要的是，改性棉织物具有出色的自洁性、透气性、透湿性和油水分离性。这些出色的特性使其在登山和野营等领域具有极高的应用价值。

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