Chen Xinpeng, Wang Jiapeng, Xie Ailing, Wang Boan, Wu Jiabao, Chen Guoqiang, Xing Tieling
College of Textile and Clothing Engineering, Jiangsu Engineering Research Center of Textile Dyeing and Printing for Energy Conservation, Discharge Reduction and Cleaner Production (ERC), Soochow University, Suzhou 215123, China.
Langmuir. 2023 Nov 7;39(44):15817-15827. doi: 10.1021/acs.langmuir.3c02508. Epub 2023 Oct 25.
Superhydrophobic polyester (PET) fabrics were created by increasing fabric surface roughness and decreasing surface energy through interactions between natural polyphenols, ferrous sulfate heptahydrate, and hexadecyltrimethoxysilane. The superhydrophobic fabric can be obtained with different natural polyphenols, including tannic acid, ferulic acid, gallic acid, guaiacol, and caffeic acid. Durability tests were carried out on the superhydrophobic PET fabric, investigating resistance to washing, rubbing, UV aging, acids, alkalis, and organic reagents. The results demonstrate the stability and versatility of modified PET in complex environments. The modified superhydrophobic PET fabric exhibited exceptional oil-water separation and self-cleaning properties, exhibiting a water contact angle of 161.3° and a sliding angle of 4°. In addition, the modified fabric demonstrated a remarkable photothermal conversion efficiency, with the surface temperature increasing from 29.1 to 72 °C in 300 s, and it maintained a degree of photothermal conversion capability even upon completion of four cycles. This study offers novel perspectives on extending the utilization of natural polyphenols for constructing durable, robust, and multifunctional superhydrophobic fabrics.
通过天然多酚、七水合硫酸亚铁和十六烷基三甲氧基硅烷之间的相互作用，增加织物表面粗糙度并降低表面能，从而制备出超疏水聚酯（PET）织物。使用不同的天然多酚，包括单宁酸、阿魏酸、没食子酸、愈创木酚和咖啡酸，均可获得超疏水织物。对超疏水PET织物进行了耐久性测试，研究其耐洗涤、摩擦、紫外线老化、酸、碱和有机试剂的性能。结果表明，改性PET在复杂环境中具有稳定性和多功能性。改性超疏水PET织物表现出优异的油水分离和自清洁性能，水接触角为161.3°，滑动角为4°。此外，改性织物表现出显著的光热转换效率，表面温度在300 s内从29.1℃升高到72℃，即使在四个循环完成后仍保持一定程度的光热转换能力。本研究为扩展天然多酚在构建耐用、坚固和多功能超疏水织物方面的应用提供了新的视角。
