纺织学报 ›› 2025, Vol. 46 ›› Issue (02): 197-206.doi: 10.13475/j.fzxb.20240905101

• 染整工程 • 上一篇    下一篇

基于山嵛酸和ZIF-8改性的超疏水防结冰棉织物

袁华彬, 王沂沨, 王家朋, 向永翾, 陈国强, 邢铁玲()   

  1. 苏州大学 纺织与服装工程学院, 江苏 苏州 215006
  • 收稿日期:2024-09-25 修回日期:2024-10-17 出版日期:2025-02-15 发布日期:2025-03-04
  • 通讯作者: 邢铁玲(1974—),女,教授,博士。主要研究方向为纺织品功能改性、植物多酚化学及其应用研究以及生态染整加工技术。E-mail:xingtieling@suda.edu.cn。
  • 作者简介:袁华彬(1994—),男,博士生。主要研究方向为金属有机框架材料的制备和应用、纺织品功能改性。
    第一联系人：

    说 明:本文入围中国纺织工程学会第25届陈维稷论文卓越行动计划

  • 基金资助:
    国家自然科学基金项目(51973144);国家留学基金项目(202406920056);江苏省纺织印染节能减排与清洁生产工程研究中心项目(2023-ERC-9011580823);江苏省研究生科研与实践创新计划项目(KYCX24_3326)

Modification of cotton fabrics by behenic acid and ZIF-8 for superhydrophobic and anti-icing performance

YUAN Huabin, WANG Yifeng, WANG Jiapeng, XIANG Yongxuan, CHEN Guoqiang, XING Tieling()   

  1. College of Textile and Clothing Engineering, Soochow University, Suzhou, Jiangsu 215006, China
  • Received:2024-09-25 Revised:2024-10-17 Published:2025-02-15 Online:2025-03-04

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摘要：

为解决棉织物因结冰导致的保暖性能下降和人体热损失加剧的问题,利用生物质材料山嵛酸和沸石咪唑酯骨架材料(ZIF-8)对棉织物进行改性,制备出具有超疏水和防结冰性能的山嵛酸/ZIF-8改性棉织物。通过扫描电子显微镜、傅里叶红外光谱以及X射线光电子能谱对改性棉织物的表面形貌和化学结构进行分析,并对其浸润性、稳定性和防结冰性能进行表征。结果显示:改性后棉织物表面具有独特的纳米花状结构,接触角高达160.6°,滑动角仅为2°,展现出优异的自清洁和防沾污性能;山嵛酸/ZIF-8改性棉织物还表现出卓越的物理和化学稳定性,能够承受600 min的连续水洗和20次砂纸磨损,并在100 ℃高温、-20 ℃低温、强碱、强酸及有机溶剂等极端环境下长期保持稳定;该改性棉织物在-15 ℃和-20 ℃环境中延缓结冰时间分别为713.2 s和351.6 s,表现出优异的防结冰性能。此方法不仅拓宽了ZIF-8和生物质材料在纺织品上的应用空间,还为开发防结冰纺织品提供了新思路。

关键词: 山嵛酸, 沸石咪唑酯骨架材料, 棉织物, 超疏水, 自清洁, 防沾污, 防结冰

Abstract:

Objective The post-freezing stiffness of cotton fabrics not only impairs user mobility but also enhances the risk of hypothermia by exacerbating heat loss, posing potential harm to wearer. The hydrophobic modification of cotton fabrics has been identified as an effective strategy to impart anti-icing capabilities. This study employs biomass materials such as behenic acid and zeolitic imidazolate frameworks (ZIF-8) to modify the cotton fabrics, producing superhydrophobic textiles with enhanced anti-icing properties.

Method Behenic acid was utilized to induce morphological changes in ZIF-8 on the cotton fabric surface to reduce surface energy, resulting in the creation of superhydrophobic and anti-icing fabrics. The study comprehensively analyzed the surface morphology and chemical composition of the fabric through scanning electron microscopy and X-ray photoelectron spectroscopy. In addition, the stability, wettability, and anti-icing performance of the modified cotton fabric were also studied.

Results The concentration of behenic acid and treatment duration were found to influence significantly the nanoflower structure and superhydrophobic properties of the modified cotton fabric. The optimal conditions were identified which is a behenic acid concentration of 6 g/L and a treatment duration of 120 min. Under these conditions, a dense nanoflower morphology was achieved, with a contact angle of 160.6° and a sliding angle of only 2°. The formation of the nanoflower structure was primarily attributed to the self-assembly between ZIF-8 and behenic acid. Specifically, the Zn2+ in ZIF-8 bound with the carboxyl groups at the ends of behenic acid chains and the hydrophobic interactions between the long chains of behenic acid promoted growth in specific directions, ultimately forming the nanoflower morphology. Infrared spectroscopy revealed new peaks at 419 cm-1 (Zn—N), 991 cm-1 (C—N), 1 581 cm-1 (C—N), 2 846 cm-1 (—CH2), and 2 916 cm-1 (—CH3), confirming the effective modification of cotton fabric by behenic acid and ZIF-8. Even when immersed in a high-concentration methylene blue solution, the surface of the modified cotton fabric showed no signs of contamination. Furthermore, dust on the surface of the modified cotton fabric could be easily removed with water flow, demonstrating excellent self-cleaning and anti-fouling properties. Due to the structural stability of ZIF-8 and the ZnO layer formed at high temperatures, the modified cotton fabric exhibited exceptional thermal stability, maintaining a high residual mass even at 700 ℃. Following modification with behenic acid and ZIF-8, the tensile strength of the modified cotton fabric was significantly enhanced, while its air permeability remained comparable to that of the original cotton fabric. The significant contact angle (160.6°) indicated a high energy barrier for ice formation, with freezing times delayed to 713.2 s at -15 ℃ and 351.6 s at -20 ℃. The modified cotton fabric also demonstrated excellent physical and chemical stability. After 20 cycles of abrasion with 1 000-grit sandpaper and treatment at -20 ℃ and 100 ℃ for 10 h, the contact angle remained above 150°, and the sliding angle was less than 10°. Even after 600 min of continuous washing, the hydrophobic properties were retained. Additionally, the superhydrophobic performance remained stable after 24 h of immersion in strong acid (pH=1), strong base (pH=13), and various organic solvents such as tetrahydrofuran, cyclohexane, methanol, carbon tetrachloride, and ethanol.

Conclusion The combination of behenic acid and ZIF-8 effectively creates a superhydrophobic material that possesses self-cleaning, anti-fouling, and anti-icing capabilities. The presence of nanoflower structures and superhydrophobic properties relies on the concentration of behenic acid and treatment duration, with optimal conditions at 6 g/L and 120 min. The formation of nanoflowers on the surface of the modified cotton fabric is primarily attributed to the self-assembly of ZIF-8 and behenic acid. The modified fabric exhibits outstanding physical and chemical stability, providing a new approach for developing anti-icing textiles, with freezing delay times in -15 ℃ and -20 ℃ environments recorded at 713.2 s and 351.6 s, respectively.

Key words: functional textile, behenic acid, zeolitic imidazolate frameworks, cotton fabric, superhydrophobicity, self-cleaning, anti-fouling, anti-icing

中图分类号: 

  • TS195.5

图1

棉织物改性前后的形貌及山嵛酸/ZIF-8/棉的接触角和滚动角"

图2

山嵛酸质量浓度和反应时间对山嵛酸/ZIF-8/棉表面微观形貌和接触角的影响"

图3

山嵛酸/ZIF-8/棉的红外光谱图,XPS图谱以及C 1s的高分辨率图谱"

图4

原棉、ZIF-8/棉以及山嵛酸/ZIF-8/棉的表面粗糙度"

图5

山嵛酸/ZIF-8/棉的热重曲线、应力-应变曲线以及水蒸发量随时间的变化"

图6

山嵛酸/ZIF-8/棉的浸润性、防沾污以及自清洁性能测试照片"

图7

在不同环境温度下山嵛酸/ZIF-8/棉表面水滴的温度随时间的变化"

图8

磨损次数、持续水洗时间、低温处理、高温处理、酸碱溶液以及有机溶剂浸泡对山嵛酸/ZIF-8/棉的θCA和θSA的影响"

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