A Method for Preparation of Surface Modified Silica and a Surface Modified Silica Prepared by the Same

摘要

(A) passing colloidal silica through a cation exchange resin to remove metal ions; (b) adding an acid or base catalyst to the colloidal silica from which the metal ion has been removed to adjust the acidity to pH 2 to 3; And (c) modifying the surface of the silica by adding a silane coupling agent and an alcohol compound to the surface-modified silica, and the surface-modified silica produced thereby.