Octadecyl trichlorosilane in the organic aqueous solutions of low concentration can be mica, silicon, silicon dioxide, glass, metal or the like formed on the surface hydroxyl groups with certain solid mechanical strength, surface properties and stable homogeneous structure of self-assembled monolayer molecular film, and has a certain lipophilic hydrophobic properties.

 In mica, silicon, silicon dioxide, glass, metal and other solid hydroxyl group.