一种基于SiO_2气凝胶制备超疏水表面的工艺探讨  

Process Study on Superhydrophobic Surface Based on SiO_2 Aerogel

作　　者：徐方平[1] 徐壁[1] 蔡再生[1] 

机构地区：[1]东华大学,上海201620

出　　处：《表面技术》2012年第5期111-113,共3页Surface Technology

摘　　要：以商品化SiO2气凝胶为原料,选择不同的分散介质进行分散,然后在玻璃表面进行涂覆并干燥,制得超疏水表面。研究结果表明:当选择丙酮作为分散介质,SiO2气凝胶质量浓度为30g/L,以旋涂的方式涂覆2次,并于20℃进行干燥时,所制备的表面超疏水效果最好,其接触角为153.2°,滞后角为1.7°。Superhydrophobic glass was prepared by coating and drying with different dispersion medium based on commercialized silica aerogel. It is found that a superhydrophobic surface with a contact angle of 153.2° and a contact an-gle hysteresis of 1.7°can be achieved under the following conditions： acetone as the solvent, SiO2 aerogel concentration of 30 g/L, spining coating twice, drying temperature of 20 ℃.

关 键 词：SIO2气凝胶 超疏水表面 接触角 滞后角 

分 类 号：O484.4[理学—固体物理] TB34[理学—物理]