Hydrophobic silica gel was prepared by sol-gel process using tetraethoxy silicone(TEOS) as raw material, then the surface was chemically modified by diethoxydimethylsilane(DDS).

以正硅酸乙酯为原料，经溶胶-凝胶过程制备二氧化硅溶胶，再利用二甲基二乙氧基硅烷（DDS）对其进行改性，制备了疏水性二氧化硅凝胶。

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Super-hydrophobic silica-based thin films were prepared by sol-gel processing. Both surface energy and roughness were controlled using colloidal silica particles and fluoroalkylsilane.

溶胶— 凝胶法制备超疏水薄膜，加入胶体二氧化硅粒子和氟硅烷控制薄膜表面粗糙度和表面化学性质。

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The influences of hydrophobic group content on the stability of the silica sols and the surface wettability and vapour stability of the silica membranes were investigated.

研究了憎水基团的添加量对溶胶体系的稳定性和对二氧化硅膜润湿性以及水汽稳定性的影响。

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