基于山嵛酸和ZIF-8改性的超疏水防结冰棉织物  

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

作　　者：袁华彬 王沂沨 王家朋 向永翾 陈国强[1] 邢铁玲[1] YUAN Huabin;WANG Yifeng;WANG Jiapeng;XIANG Yongxuan;CHEN Guoqiang;XING Tieling(College of Textile and Clothing Engineering,Soochow University,Suzhou,Jiangsu 215006,China)

机构地区：[1]苏州大学纺织与服装工程学院,江苏苏州215006

出　　处：《纺织学报》2025年第2期197-206,共10页Journal of Textile Research

基　　金：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)。

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。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 Zn 2+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),1581 cm-1(C—N),2846 cm-1(—CH 2),and 2916 cm-1(—CH 3),confirming the effective modification of cotton fabric by behenic acid and ZIF-8.Even when immersed in

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 

分 类 号：TS195.5[轻工技术与工程—纺织化学与染整工程]