摘要
文中基于仿生超疏水理论,将溶胶-凝胶法制得的纳米二氧化硅粒子与阳离子聚电解质聚烯丙基胺盐酸盐(PAH)通过静电层层自组装作用交替沉积在棉织物表面构筑粗糙结构,随后用低表面能物质十七氟癸基三甲氧基硅烷(FAS)和十六烷基三甲氧基硅烷(HDTMS)进行修饰以实现超疏水效果。使用扫描电子显微镜对织物表观形貌进行表征,通过水接触角、滑移角测定评价其疏水性能。结果表明:溶胶-凝胶法制备的纳米二氧化硅为单分散性良好的规则球形,平均粒径为280~300 nm;当棉织物表面组装(SiO2-PAH)层数为7、修饰剂为FAS时,棉织物表面水接触角为150.27°,滑移角6.67°,具备超疏水性。
Based on the biomimetic superhydrophobic theory, the nano-silica particles prepared by sol-gel method and the cationic polyelectrolyte-polyallylamine hydrochloride(PAH) were alternately deposited on the surface of the cotton fabric by electrostatic layer self-assembly. The surface of the finished cotton fabric was then modified with low surface energy materials heptafluorodecyltrimethoxysilane(FAS) and cetyltrimethoxysilane(HDTMS) in order to achieve super-hydrophobic effect. The functional morphology of the fabric was characterized by scanning electron microscopy(SEM). The hydrophobic properties were evaluated by water contact angle(WCA) and water slip angle(WSA). The results show that the nano-silica particles prepared are mono-disperse with regular spherical shape and an average particle size of 280 ~300 nm. When the assembled number of(SiO2-PAH) is 7 and the modifier is FAS, the cotton fabric is super-hydrophobic with WCA of 150.27° and WSA of 6.67°.
作者
张维
邢红立
皇甫志杰
Zhang Wei;Xing Hongli;Huangfu Zhijie(College of Textile and Garments,Hebei University of Science&Technology,Shijiazhuang,Hebei 050018,China)
出处
《针织工业》
北大核心
2019年第10期23-27,共5页
Knitting Industries
基金
石家庄市科学技术研究与发展计划(191190551A)
河北科技大学博士科研基金(1181196)
关键词
超疏水
纳米二氧化硅
聚烯丙基胺盐酸盐
层层自组装
棉织物
Superhydrophobic
Nano-Silica
Poly (Allylamine Hydrochloride)
Layer-By-Layer Assembly
Cotton Fabric
