棉织物的硅溶胶/短链含氟聚丙烯酸酯复合拒水整理  

Water-repellent finishing of cotton fabrics with silica sol and short-chain fluorinated polyacrylic ester

作　　者：杜姗 魏云航 谭宇浩 吴婷[2] 李勇[2] 杨红英[1,3] 王明 周伟涛[2,3] DU Shan;WEI Yunhang;TAN Yuhao;WU Ting;LI Yong;YANG Hongying;WANG Ming;ZHOU Weitao(School of Textile,Zhongyuan University of Technology,Zhengzhou,Henan451191,China;Institute of Textile and Garment Industry,Zhongyuan University of Technology,Zhengzhou,Henan451191,China;Zhengzhou Key Laboratory of Green Dyeing&Finishing Technology,Zhongyuan University of Technology,Zhengzhou,Henan451191,China;Key Laboratory of Science&Technology of Eco-Textile,Ministry of Education,Donghua University,Shanghai201620,China;College of Chemical and Dyeing-Printing Engineering,Henan University of Engineering,Zhengzhou,Henan450007,China)

机构地区：[1]中原工学院纺织学院,河南郑州451191 [2]中原工学院纺织服装产业研究院,河南郑州451191 [3]中原工学院郑州市绿色染整技术重点实验室,河南郑州451191 [4]东华大学生态纺织教育部重点实验室,上海201620 [5]河南工程学院化工与印染工程学院,河南郑州450007

出　　处：《纺织学报》2023年第9期153-160,共8页Journal of Textile Research

基　　金：河南省青年骨干教师计划项目(2021GGJS108);河南省重点研发与推广专项(科技攻关)项目(212102210550);河南省高等学校重点科研项目(22A540002);东华大学生态纺织教育部重点实验室开放课题项目(2232021G-04);中原工学院“学科青年硕导培育计划”项目(SD202219)。

摘　　要：为实现棉织物绿色环保拒水整理,利用硅溶胶和短链含氟聚丙烯酸酯对棉织物进行复合整理和工艺优化,赋予棉织物优异的拒水性。探讨了硅溶胶用量、短链含氟聚丙烯酸酯质量浓度、浸渍时间、预烘温度、烘焙温度和烘焙时间等因素对棉织物拒水效果的影响,得到其最佳整理工艺为:硅溶胶用量0.3%(o.w.f),短链含氟聚丙烯酸酯质量浓度30 g/L,浸渍时间20 min,预烘温度80℃,170℃焙烘2 min。利用扫描电子显微镜、傅里叶红外光谱仪、热重分析仪对整理后棉织物的表面形貌和结构进行分析,并通过表面接触角测试仪及织物风格仪测试其表面润湿性、耐酸碱性和风格变化。结果表明:复合整理后棉织物表面形成硅溶胶/短链含氟聚丙烯酸酯疏水层,最大接触角为155.6°,经50次洗涤后,接触角仍大于90°;对强酸(pH值为3)和强碱(pH值为12)液滴的接触角分别可达100°和93°,具有良好的耐酸碱性;整理后棉织物折皱回复率提升约20%,热稳定性及柔软度也略有改善。Objective Water-repellent cotton fabrics have attracted widespread attention because of their exceptional innovative functionality and promising applications.However,the poor adhesion of particles to construct roughness and the refractory fluorinated finishing agents with the carbon atom number greater than 8 lead to poor washing durability and environmental pollution.Therefore,a novel eco-friendly short-chain acrylate polymer-based coating with silica gel was developed to endow cotton fabrics with superior water-repellent performance,washing durability and acid-alkali resistance.Method In this coating system,silica gel and short-chain fluorinated polyacrylic acid were introduced into the cotton fabric through facile chemical reaction for achieving high water-repellent performance.The process to obtain hydrophobic cotton fabric was optimized.The obtained hydrophobic cotton fabric was next characterized by Scanning electron microscopy(SEM),Fourier transform infrared spectroscopy(FT-IR)and thermogravimetry(TG)for its surface morphology and structure.The application properties were investigated by surface contact angle,acid and alkali resistance and fabric style tests.Results The critical process parameters,such as silica sol concentration,short-chain fluorinated polyacrylate concentration,pre-baking temperature and baking temperature,were investigated on the repellency of cotton fabrics.The optimal process conditions were determined as follows:0.3%(o.w.f)of silica sol,30 g/L of short chain fluorinated polyacrylic ester,20 min of soaking time,80℃of pre-baking temperature and baking at 170℃for 2 min(Fig.1).With such optimal process,the cotton fabric exhibited hydrophobic character of the surface(water contact angle changed from 42°to 155.6°,Fig.2).Surface morphology characterized by SEM indicated acrylate polymer possessing preferable film form ability,beneficial to reduce the surface tension and to improve water repellency(Fig.3).With the presence of Si—O—Si group and C—F group(Fig.4),the improved water

关 键 词：拒水整理 短链含氟聚丙烯酸酯 硅溶胶 润湿性 织物风格 

分 类 号：TS195.5[轻工技术与工程—纺织化学与染整工程]