纺织学报 ›› 2020, Vol. 41 ›› Issue (07): 122-128.doi: 10.13475/j.fzxb.20191003708

• 纤维材料 • 上一篇    下一篇

二氧化钛水热改性涤/棉混纺织物的自清洁性能

陈文豆1,2,3, 张辉1,2,3(), 陈天宇1,2,3, 武海良1,2,3   

  1. 1.西安工程大学 纺织科学与工程学院, 陕西 西安 710048
    2.西安工程大学 功能纺织材料研究中心,陕西 西安 710048
    3.西安工程大学 省部共建智能纺织材料与制品国家重点实验室(培育), 陕西 西安 710048
  • 收稿日期:2019-10-17 修回日期:2020-04-01 出版日期:2020-07-15 发布日期:2020-07-23
  • 通讯作者: 张辉
  • 作者简介:陈文豆(1997—),女,硕士生。主要研究方向为纺织材料改性及功能性纺织产品研发。
  • 基金资助:
    国家自然科学基金面上项目(51873169);陕西省国际科技合作计划项目(2020KW-069)

Self-cleaning properties of titanium dioxide modified polyester/cotton blend fabrics

CHEN Wendou1,2,3, ZHANG Hui1,2,3(), CHEN Tianyu1,2,3, WU Hailiang1,2,3   

  1. 1. School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an, Shaanxi 710048, China
    2. Research Center for Functional Textile Materials, Xi'an Polytechnic University, Xi'an, Shaanxi 710048, China
    3. State Key Laboratory of Intelligent Textile Material and Products, Xi'an Polytechnic University, Xi'an, Shaanxi 710048, China
  • Received:2019-10-17 Revised:2020-04-01 Online:2020-07-15 Published:2020-07-23
  • Contact: ZHANG Hui

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摘要：

为赋予涤/棉混纺织物光催化自清洁性能,基于水热合成技术,分别使用钛酸四丁酯、硫酸钛以及硫酸氧钛在涤/棉混纺织物表面负载纳米TiO2颗粒,借助扫描电子显微镜、X射线衍射仪、傅里叶变换红外光谱仪、热重分析仪和紫外-可见光漫反射光谱仪等对TiO2改性涤/棉混纺织物的结构和性能进行分析,比较了不同种类TiO2前驱体改性涤/棉混纺织物可见光下降解污物的自清洁能力。结果表明:较钛酸四丁酯和硫酸钛改性的涤/棉混纺织物,硫酸氧钛改性涤/棉混纺织物接枝的锐钛矿型TiO2颗粒多且尺寸小,光吸收能力增强,禁带宽度减小,其光催化自清洁性能优异,5次洗涤后自清洁性能没有明显减弱。

关键词: 涤/棉混纺织物, 二氧化钛, 水热合成法, 功能纺织品, 自清洁性能

Abstract:

In order to endow polyester(PET)/cotton blend fabrics with photocatalytic self-cleaning properties, such fabrics were treated by using different nano TiO2 precursors like tetrabutyl titanate, titanium sulfate, and titanium oxysulfate based on the hydrothermal synthesis technique. The TiO2 modified PET/cotton fabrics were characterized by scanning electron microscope, X-ray diffractometer, Fourier transform infrared spectrometer, thermogravimetry analyzer and ultraviolet-vis diffuse reflection spectrometer. In addition, the self-cleaning abilities of such modified fabric samples were evaluated by the removals of organic stains on fabric surfaces. The experimental results confirm that in comparison with tetrabutyl titanate and titanium sulfate, titanium oxysulfate can be positively used as the TiO2 precursor to graft anatase-type TiO2 particles on the surface of PET/cotton fabric. The superior self-cleaning properties of the TiO2 modified PET/cotton fabric is due to the deposition of a large number of ultrafine TiO2 particles on the fabric surface, resulting in the enhanced light absorption ability and reduced band gap. The self-cleaning properties is kept well even after five times of washing.

Key words: polyester/cotton blend fabric, titanium dioxide, hydrothermal synthesis technique, functional textiles, self-cleaning property

中图分类号: 

  • TS151

图1

TiO2改性涤/棉混纺织物的扫描电镜照片"

表1

涤/棉混纺织物的化学元素分析结果"

织物
编号		 元素质量百分比/% 元素原子百分比/%
C O Ti C O Ti
1# 56.47 43.53 63.34 36.66
2# 56.45 43.38 0.17 63.39 36.56 0.05
3# 41.51 49.94 8.55 51.16 46.20 2.64
4# 44.78 46.74 8.48 54.62 42.79 2.59

图2

涤/棉混纺织物的X射线衍射谱图"

图3

涤/棉混纺织物的红外光谱图"

图4

涤/棉混纺织物的热稳定性曲线"

图5

涤/棉混纺织物的漫反射光谱曲线和(αhv)1/2与hv关系曲线"

图6

涤/棉混纺织物对咖啡溶液自清洁情况"

图7

涤/棉混纺织物对亚甲基蓝溶液自清洁情况"

图8

涤/棉混纺织物对火龙果汁自清洁情况"

图9

不同洗涤次数下硫酸氧钛改性涤/棉混纺织物光催化自清洁降解亚甲基蓝染料效果图"

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