纺织学报 ›› 2019, Vol. 40 ›› Issue (07): 90-96.doi: 10.13475/j.fzxb.20180608807

• 染整与化学品 • 上一篇    下一篇

用SiO2/TiO2复合气凝胶制备超疏水光催化防紫外线织物

盛宇1,2, 徐丽慧1,2(), 孟云3, 沈勇1, 王黎明1, 潘虹1   

  1. 1. 上海工程技术大学 服装学院, 上海 201620
    2. 浙江省清洁染整技术研究重点实验室, 浙江 绍兴 312000
    3. 深圳市计量质量检测研究院, 广东 深圳 518000
  • 收稿日期:2018-06-28 修回日期:2019-04-04 出版日期:2019-07-15 发布日期:2019-07-25
  • 通讯作者: 徐丽慧
  • 作者简介:盛宇 (1993-),男,硕士生。主要研究方向为无机纳米材料研究及其在功能纺织材料中的应用。
  • 基金资助:
    国家自然科学基金项目(51703123);浙江省清洁染整技术研究重点实验室开放基金项目(1801);上海工程技术大学人才行动计划腾飞计划(2018RC46-2018)

Preparation of superhydrophobic, photocatalytic and UV-blocking textiles based on SiO2/TiO2 composite aerogels

SHENG Yu1,2, XU Lihui1,2(), MENG Yun3, SHEN Yong1, WANG Liming1, PAN Hong1   

  1. 1. Fashion College, Shanghai University of Engineering Science, Shanghai 201620, China
    2. Zhejiang Key Laboratory of Clean Dyeing and Finishing Technology, Shaoxing, Zhejiang 312000, China
    3. Shenzhen Academy of Metrology & Quality Inspection, Shenzhen, Guangdong 518000, China;
  • Received:2018-06-28 Revised:2019-04-04 Online:2019-07-15 Published:2019-07-25
  • Contact: XU Lihui

摘要:

为制备一种多功能纺织品,采用溶胶-凝胶法制备SiO2/TiO2复合气凝胶,并将聚二甲基硅氧烷(PDMS)与SiO2/TiO2复合气凝胶混合后制备PDMS/SiO2-TiO2复合材料,采用浸—轧—烘工艺将其处理到棉织物表面,同时借助扫描电子显微镜、X射线光电子能谱仪、热重分析仪、原子力显微镜等对处理后织物进行表征,分析其超疏水性、光催化性能与抗紫外线性能。结果表明:处理后棉织物表面具有PDMS/SiO2-TiO2复合材料所构筑的微纳米粗糙结构,PDMS/SiO2-TiO2复合材料已成功处理到棉织物上;处理后棉织物接触角为157.7°,紫外线防护系数值为122.47,光照4 h后对亚甲基蓝光催化降解率达到87.08%。

关键词: SiO2/TiO2复合气凝胶, 光催化, 防紫外线纺织品, 超疏水, 棉织物

Abstract:

In order to prepare a new multifunctional textile, SiO2/TiO2 composite aerogel was prepared by sol-gel method, and polydimethylsiloxane (PDMS)/SiO2-TiO2 composite material was obtained by mixing PDMS and SiO2/TiO2 composite aerogel. PDMS/SiO2-TiO2 composites were applied to coat onto the cotton fabrics by dip-pad-cure process to prepare multifunctional textiles. The scanning electron microscopy, X-ray photoelectron spectroscopy, thermogravimetric analyzer, atomic force microscopy were adopted to characterize the treated fabrics, and photocatalysis, hydrophobicity and UV-blocking properties were analyzed. The surface of the cotton fabric after treatment has the micro-nano roughness structure constructed by PDMS/SiO2-TiO2 composite material. The PDMS/SiO2-TiO2 composite material is successfully coated on the surface of the finished cotton fabric. The treated cotton fabric has a water contact angle of 157.7°, the UV protection factor of 122.47, and the photocatalytic degradation ratio for methylene blue of 87.08% after 4 h illumination.

Key words: SiO2/TiO2 composite aerogel, photocatalytic, anti-ultraviolet fabric, super-hydrophobicity, cotton fabric

中图分类号: 

  • TS19

图1

棉织物的热失重曲线图"

图2

棉织物的场发射扫描电子显微镜照片"

图3

棉织物的原子力显微镜三维图"

图4

棉织物的XPS谱图"

图5

棉织物的疏水性能表征"

图6

汞灯光照时间和皂洗次数对处理后棉织物疏水性能的影响"

图7

未整理棉织物与PDMS/SiO2-TiO2复合材料处理棉织物的紫外线透过率"

表1

棉织物的紫外线防护性能"

棉织物 平均透过率/% UPF
UVA UVB
原织物 9.60 3.80 16.03
PDMS/SiO2-TiO2整理后棉织物 0.26 0.07 122.47

图8

紫外光照射不同时间下PDMS/SiO2-TiO2 处理棉织物对亚甲基蓝的降解率"

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