二维过渡金属碳化物(Ti3C2Tx)对棉针织物的功能整理及其性能分析

doi:10.13475/j.fzxb.20200805608

摘要/Abstract

摘要：

为拓展二维过渡金属碳化物(MXene)在纺织品中的应用,基于LiF/HCl选择性刻蚀作用原理,以Ti₃AlC₂为前驱体,制备出二维纳米材料Ti₃C₂T_x。借助透射电子显微镜、扫描电子显微镜、X射线能谱衍射仪、紫外-可见吸收光谱仪等对Ti₃C₂T_x表面形貌、结构、化学组成进行表征。采用浸轧-预烘-焙烘工艺将Ti₃C₂T_x整理到织物上,优化了整理工艺,并研究了织物的防紫外线及导电性能。结果表明:当Ti₃C₂T_x质量浓度为8 g/L,轧余率为100%,浸渍40 min,150 ℃焙烘3 min 时,经过4次重复整理后,织物表面电阻达到最低值0.602 kΩ/□,此时Ti₃C₂T_x质量分数为1.25%;经过数次整理的织物有极好的防紫外线性能,紫外线防护系数达到500;整理后织物能保持良好的透气性,整理5次的织物经过20次水洗后表面电阻低于5 kΩ/□。

关键词: 二维过渡金属碳化物, 导电织物, 抗紫外线性能, 导电性能, 功能整理, 棉针织物, 智能服装

Abstract:

To study the application of textiles, a two-dimensional nanomaterial Ti₃C₂T_x was prepared using Ti₃AlC₂ as the precursor based on the selective etching of LiF/HCl. Transmission electron microscope, scanning electron microscope, X-ray energy spectrum diffraction, ultraviolet-visible absorption spectrum were used to characterize the surface morphology, structure, chemical composition of Ti₃C₂T_x, which was used to treat cotton knitted fabrics using the pad-dry-cure technique with optimised finishing technic parameters. The results show that under the condition that the concentration of Ti₃C₂T_x was 8 g/L, the liquid ratio was 100%, the dipping time was 40 min, the baking temperature was 150 ℃, baking time was 3 min and repeated 4 times, the fabric had the best conductivity with 1.25% Ti₃C₂T_x loading. Ti₃C₂T_x is uniformly distributed on the surface of the fabric, and the surface resistance is significantly reduced to 600 Ω/□. The fabric after several finishing has excellent UV resistance, and the ultraviolet protection value reaches 500. The finished fabric presents good breathability, and the surface resistance of the finished fabric is lower than 5 kΩ/□ after 5 times of finishing under 20 times of washing.

Key words: Ti₃C₂T_x(MXene), conductive fabric, UV resistance, electric conductivity, functional finishing, cotton knitted fabric, smart clothing

中图分类号:

TS195.2

李一飞, 郑敏, 常朱宁子, 李丽艳, 曹元鸣, 翟旺宜. 二维过渡金属碳化物(Ti₃C₂T_x)对棉针织物的功能整理及其性能分析[J]. 纺织学报, 2021, 42(06): 120-127.

LI Yifei, ZHENG Min, CHANGZHU Ningzi, LI Liyan, CAO Yuanming, ZHAI Wangyi. Cotton knitted fabrics treated with two-dimensional transitional metal carbide Ti₃C₂T_x and property analysis[J]. Journal of Textile Research, 2021, 42(06): 120-127.

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整理次数	UPF值	透过率/%
整理次数	UPF值	UVA	UVB
0(原织物)	32.97	2.08	2.87
1	354.20	0.31	0.29
2	500.00	0.16	0.16
3	500.00	0.09	0.08
4	500.00	0.09	0.08
5	500.00	0.08	0.08

整理次数	表面电阻/(kΩ·□^-1)
整理次数	未水洗	水洗5次	水洗10次	水洗20次
1	2.46	8.84	15.69	37.45
3	0.95	1.82	3.77	8.68
5	0.59	1.10	2.16	4.62

整理次数	耐摩擦色牢度/级
整理次数	干摩	湿摩
1	4	3
3	3~4	2~3
5	3	2

二维过渡金属碳化物(Ti₃C₂T_x)对棉针织物的功能整理及其性能分析

Cotton knitted fabrics treated with two-dimensional transitional metal carbide Ti₃C₂T_x and property analysis

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