The results indicate that the polar micromolecules can enhance the hydrophobic ability of SiO_2 nanoparticles modified by HMDS and improve dispersion of SiO_2 in organic solvents.

• 水和乙醇的引入能有效提高HMDS对纳米SiO2的改性效果及纳米SiO2的疏水程度,改善其在有机相中的分散性。