本文成功制备了聚氟硅氧烷处理的微纳结构表面,并研究了其宏观水流减阻特性.首先,采用包覆工艺对粉煤灰球形微珠进行表面纳米化处理,制备出微纳结构复合微珠颗粒,并利用聚氟硅氧烷对复合微珠进行表面疏水处理；然后以硅橡胶为黏接剂将表面疏水化的复合微珠涂覆于槽道表面,制备出宏观尺度的超疏水性表面槽道.研究表明:聚氟硅氧烷处理的微纳结构粉煤灰复合微珠制备的宏观尺度超疏水性表面槽道与相同尺寸的普通表面槽道相比,当雷诺数Re＜ 1500时,层流减阻为22.6％,而Re＞ 1500时,湍流减阻达到76.5％.
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