基于二维碳化钛材料修饰的功能棉针织物制备及其性能  

Preparation and properties of functional cotton knitwear modified by two-dimensional titanium carbide

作　　者：葛佳慧 毛志平[1,2,3] 张琳萍 钟毅[1,2,3] 隋晓锋 徐红[1,2,3] GE Jiahui;MAO Zhiping;ZHANG Linping;ZHONG Yi;SUI Xiaofeng;XU Hong(Key Laboratory of Science&Technology of Eco-Textiles,Ministry of Education,Donghua University,Shanghai 201620,China;College of Chemistry and Chemical Engineering,Donghua University,Shanghai 201620,China;National Innovation Center of Advanced Dyeing&Finishing Technology,Shandong Zhongkang Guochuang Research Institute of Advanced Dyeing&Finishing Technology Co.,Ltd.,Taian,Shandong 271000,China)

机构地区：[1]东华大学生态纺织教育部重点实验室,上海201620 [2]东华大学化学与化工学院,上海201620 [3]山东中康国创先进印染技术研究院有限公司国家先进印染技术创新中心,山东泰安271000

出　　处：《纺织学报》2023年第4期132-138,共7页Journal of Textile Research

基　　金：中央高校基本科研业务费专项资金资助项目(2232021G-04);山东省重点研发计划项目(2020CXGC011102)。

摘　　要：为拓展二维碳化钛材料在棉针织物中的应用,制备具有一定耐水洗性能的导电棉针织物,首先利用LiF/HCl混合溶液刻蚀前驱体钛碳化铝获得二维碳化钛导电材料(Ti_(3)C_(2)T_(x)),再对棉针织物进行阳离子化改性,使Ti_(3)C_(2)T_(x)通过静电作用附着到阳离子化的棉针织物表面,得到导电棉针织物材料。借助X射线衍射仪、X射线光电子能谱仪、扫描电子显微镜、透射电子显微镜等手段对棉针织物在阳离子化改性前后以及负载Ti_(3)C_(2)T_(x)前后进行形貌表征和元素分析。通过RTS-9型四探针测试导电棉针织物的表面电阻,对棉针织物阳离子化改性工艺及Ti_(3)C_(2)T_(x)在阳离子化棉针织物表面的负载条件进行了优化。得到棉针织物阳离子化改性的最佳工艺:阳离子改性剂用量为10%(o.w.f),氢氧化钠质量浓度为10 g/L,获得Ti_(3)C_(2)T_(x)在阳离子化棉针织物表面的最佳负载条件(超声波处理60 min)。在优化条件下,负载Ti_(3)C_(2)T_(x)的阳离子化改性棉针织物表面电阻可低至84.5Ω/□,经20次水洗后,导电棉针织物的表面电阻由84.5Ω/□上升至95.6Ω/□,仍在100Ω/□以下,可满足导电要求。Objective Through preparation of conductive cotton fabrics with washable properties and application of two-dimensional titanium carbide to cotton fabrics,this research aims to obtain conductive cotton fabrics with a new method.Method By cationic modification of cotton fabric,two-dimensional nanomaterial Ti_(3)C_(2)T_(x) was adsorbed on the surface of cationic cotton fabric to obtain new conductive cotton fabrics.The morphologies and elements of cotton knitted products before and after cationic modification and Ti_(3)C_(2)T_(x) loading were analyzed by X-ray diffractometer,X-ray photoelectron spectroscopy,scanning electron microscopy and transmission electron microscopy.The surface resistance of conductive cotton fabric was tested by using RTS-9 four probes,and the cationic modification technology and adsorption conditions of Ti_(3)C_(2)T_(x) were optimized,so as to obtain the optimal scheme.Results Ti 3AlC 2 is a three-dimensional solid,and the product after etching by hydrofluoric acid becomes a two-dimensional nanomaterial.This conclusion has been confirmed in the electron microscopy(Fig.1),and it is also confirmed that the etched material contains F,O and other groups(Fig.2),making the two-dimensional material negatively charged.Cationic modifier is a polymer nitrogen-containing compound.After cationic modification,the surface of cotton knitted fabric is grafted with positive amino group(Fig.3).After ultrasonic treatment with Ti_(3)C_(2)T_(x),there are Ti,F,O and other groups on the surface of the fabric,which proves that Ti_(3)C_(2)T_(x) is successfully loaded on the surface of the fabric(Fig.4).Following the experimental design(Tab.1),the optimal processing conditions are that the cationic modifier is 10%o.w.f(Fig.6),the concentration of sodium hydroxide is 10 g/L(Fig.5),the modification time is 30 min,and the ultrasonic time of Ti_(3)C_(2)T_(x) is 60 min(Fig.8).Under optimized conditions,the surface resistance of cationic modified cotton knitted material loaded with Ti_(3)C_(2)T_(x) can be as low as 84.5Ω/

关 键 词：二维碳化钛材料 阳离子改性 导电织物 耐水洗性能 功能纺织品 

分 类 号：TS195.5[轻工技术与工程—纺织化学与染整工程]