用SiO2/TiO2复合气凝胶制备超疏水光催化防紫外线织物  

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

作　　者：盛宇 徐丽慧[1,2] 孟云 沈勇[1] 王黎明[1] 潘虹[1] SHENG Yu;XU Lihui;MENG Yun;SHEN Yong;WANG Liming;PAN Hong(Fashion College, Shanghai University of Engineering Science, Shanghai 201620,China;Zhejiang Key Laboratory of Clean Dyeing and Finishing Technology,Shaoxing, Zhejiang 312000,China;Shenzhen Academy of Metrology & Quality Inspection, Shenzhen, Guangdong 518000, China)

机构地区：[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

出　　处：《纺织学报》2019年第7期90-96,共7页Journal of Textile Research

基　　金：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)

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%。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.

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 

分 类 号：TS19[轻工技术与工程—纺织化学与染整工程]