Multi-functional superhydrophobic photothermal cotton fabric inspired by mussels with anti-icing/de-icing and oil-water separation functions

IF 6.1 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology Pub Date : 2025-09-11 DOI:10.1016/j.surfcoat.2025.132667

Hanjing Lu , Langqian Chen , Xinkang Sha , Guangxue Chen

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Abstract

To overcome the limitations of conventional fluorinated superhydrophobic cotton fabrics—including restricted functionality and environmental concerns—this study developed a green, multifunctional modification strategy. Inspired by mussel adhesion mechanisms, a polydopamine (PDA) layer was self-assembled onto cotton fibers to create a robust adhesive substrate. This was combined with methyltrimethoxysilane (MTMS) via chemical vapor deposition (CVD) to impart low surface energy. The resulting fabric exhibited exceptional superhydrophobicity (contact angle: 163.0 ± 2.5°; roll-off angle: 6.0 ± 1.5°), which prevented contaminant adhesion for sustained photothermal performance (rapid photothermal heating to 93.3 °C under 100 mW·cm⁻² solar irradiation). The coating also demonstrated outstanding passive anti-icing and active de-icing capabilities: it delayed droplet freezing by 321 s (8.67 times longer than uncoated cotton) and reduced de-icing time by 76.3 % on a −20 °C stage. In addition, the modified fabric showed efficient gravity-driven oil-water separation capabilities (flux: 11,024.98 L·m⁻²·h⁻¹; efficiency: 98.22 %). Robust mechanical and chemical durability was confirmed through sandpaper abrasion, tape peeling, and exposure to extreme pH conditions or organic solvents. This environmentally benign, durable, and photothermally active material shows promise for waterproofing, anti-fouling, self-cleaning, anti-icing, and active de-icing capabilities, offering sustainable solutions for textiles used in extreme environments.

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多功能超疏水光热棉织物，灵感来自贻贝，具有防冰/除冰和油水分离功能

为了克服传统氟化超疏水棉织物的局限性，包括限制功能和环境问题，本研究开发了一种绿色，多功能的改性策略。受贻贝粘附机制的启发，聚多巴胺（PDA）层自组装到棉纤维上，以创建坚固的粘附基板。通过化学气相沉积（CVD）将其与甲基三甲氧基硅烷（MTMS）结合，以获得低表面能。所得到的织物表现出优异的超疏水性（接触角：163.0±2.5°；滚脱角：6.0±1.5°），防止污染物粘附，保持持续的光热性能（在100 mW·cm−2太阳照射下快速光热加热到93.3°C）。该涂层还显示出出色的被动防冰和主动除冰能力：在- 20°C阶段，它将液滴冻结延迟321 s（比未涂层棉花长8.67倍），并将除冰时间缩短76.3%。此外，改性织物具有良好的重力驱动油水分离能力（通量为11024.98 L·m−2·h−1，效率为98.22%）。通过砂纸磨损、胶带剥落、极端pH条件或有机溶剂的暴露，验证了其强大的机械和化学耐久性。这种环保、耐用、光热活性的材料具有防水、防污、自清洁、防结冰和主动除冰能力，为极端环境下使用的纺织品提供了可持续的解决方案。

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来源期刊

Surface & Coatings Technology 工程技术-材料科学：膜

CiteScore

10.00

自引率

11.10%

发文量

921

审稿时长

19 days

期刊介绍： Surface and Coatings Technology is an international archival journal publishing scientific papers on significant developments in surface and interface engineering to modify and improve the surface properties of materials for protection in demanding contact conditions or aggressive environments, or for enhanced functional performance. Contributions range from original scientific articles concerned with fundamental and applied aspects of research or direct applications of metallic, inorganic, organic and composite coatings, to invited reviews of current technology in specific areas. Papers submitted to this journal are expected to be in line with the following aspects in processes, and properties/performance: A. Processes: Physical and chemical vapour deposition techniques, thermal and plasma spraying, surface modification by directed energy techniques such as ion, electron and laser beams, thermo-chemical treatment, wet chemical and electrochemical processes such as plating, sol-gel coating, anodization, plasma electrolytic oxidation, etc., but excluding painting. B. Properties/performance: friction performance, wear resistance (e.g., abrasion, erosion, fretting, etc), corrosion and oxidation resistance, thermal protection, diffusion resistance, hydrophilicity/hydrophobicity, and properties relevant to smart materials behaviour and enhanced multifunctional performance for environmental, energy and medical applications, but excluding device aspects.