棉织物表面聚多巴胺/叶酸自组装拒水拒油改性  

Water-and oil-repellent finish of cotton fabric self-assembled by polydopamine and folic acid

作　　者：黄智豪 宁欢 张钰琳 刘锦锋 余圆圆[1] HUANG Zhihao;NING Huan;ZHANG Yulin;LIU Jinfeng;YU Yuanyuan(Key Laboratory of Science and Technology of Eco-Textile,Ministry of Education,Jiangnan University,Wuxi 214122,China)

机构地区：[1]江南大学生态纺织教育部重点实验室,江苏无锡214122

出　　处：《印染》2021年第9期46-49,共4页China Dyeing and Finishing

基　　金：中国博士后科学基金资助项目(2017M611697);江苏省博士后科研资助计划项目(1701022A);江南大学大学生创新训练计划项目(2020200Y)。

摘　　要：利用叶酸(FA)的自聚集,以及多巴胺(DA)在碱性条件下氧化自聚成具有超强黏附性聚多巴胺的特性,将其一起自组装成微纳米颗粒,并沉积于棉织物表面,赋予其一定的粗糙度。随后,在粗糙颗粒表面接枝三乙氧基-1H,1H,2H,2H-十三氟代正辛基硅烷(PFOTES),赋予织物拒水拒油性能。结果表明,DA/FA/PFOTES改性棉织物具有良好的疏水性能,水滴接触时间15 min时,织物水接触角约为140°,同时还具有一定的疏油性能。DA/FA改性织物和DA/FA/PFOTES改性织物均具有粗糙的表面结构,且改性涂层具有良好的耐水洗和耐摩擦牢度。Utilizing the self-aggregation of folic acid(FA)and the oxidative self-aggregation of dopamine(DA)in⁃to super-adhesive polydopamine under alkaline conditions,they are self-assembled into micro-nano particles and deposited onto the surface of cotton fabrics to obtain a certain roughness.Subsequently,triethoxy-1H,1H,2H,2H-tridecafluoro-n-octylsilane(PFOTES)is grafted onto the surface of the coarse particles to give the fabric hydrophobic and oil-repellent properties.The results show that the fabric modified by DA/FA/PFOTES has good hydrophobic properties and oil-repellent properties,and the water contact angle of the fabric is about 140°when the water droplet contact time is 15 min.Both DA/FA modified fabrics and DA/FA/PFOTES modified fab⁃rics have rough surface structure.The surface coating of the modified fabric has good fastness to washing and friction.

关 键 词：功能整理 拒水整理 聚多巴胺 叶酸 PFOTES 棉织物 

分 类 号：TS195.5[轻工技术与工程—纺织化学与染整工程]