纳米二氧化钛/氧化锌超疏水涂层的制备及其性能  

Preparation of nano-TiO_2 /ZnO superhydrophobic coating and its performance

作　　者：青勇权[1] 郑燕升[1,2] 何易[1] 胡传波[1] 莫倩[1] 

机构地区：[1]广西工学院生物与化学工程学院,广西柳州545006 [2]广西工学院鹿山学院,广西柳州545616

出　　处：《电镀与涂饰》2013年第4期55-58,共4页Electroplating & Finishing

基　　金：广西研究生教育创新计划资助项目(2013105940817M01)

摘　　要：将纳米TiO2和微米ZnO机械搅拌,制备了纳米TiO2/ZnO复合粒子。通过硬脂酸对其改性,于200°C下烘烤15min,在钢试片上得到纳米TiO2/ZnO复合超疏水涂层。采用扫描电镜、红外光谱和接触角分析仪对涂层表面的形貌和疏水性进行了表征。结果表明,复合粒子经硬脂酸表面改性后引入了疏水性的甲基,形成微/纳米双重粗糙结构。当硬脂酸含量为9%时,所得涂层表面与水的静态接触角为165.3°,滚动角4°。该涂层具有优异的耐溶解性、耐温性及自清洁性。Nano-TiO2/ZnO composite particles were prepared by mechanical stirring nano-TiO2 and micro-ZnO, and then modified with stearic acid. A TiO2/ZnO composite superhydrophobic coating was formed on steel plate by baking at 200 ℃ for 15 min. The surface morphology and superhydrophobicity of the coating were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, and contact angle analysis. It was found that the hydrophobic methyl group is introduced into composite particles through modification by stearic acid, thus forming a micro/nano double roughness structure. When the content of stearic acid is 9%, the static state contact angle of the coating surface with water is 165.3°, and the sliding angle is 4°. The coating has excellent dissolution resistance, temperature tolerance, and self-cleaning property.

关 键 词：超疏水涂层 纳米二氧化钛 氧化锌 硬脂酸 表面 改性 自清洁 

分 类 号：TG174.4[金属学及工艺—金属表面处理]