Organic Solvent Based Colloidal Silica Sol and Fabrication Method Thereof

摘要

The present invention relates to an organic solvent-type silica sol and a method for preparing the same, comprising: a silica sol forming step of adding a solvent to the alkoxy silane collected through purification to stir to form a colloidal silica sol; A surface treatment step of modifying the sol-like silica surface by adding and stirring a functional alkoxy silane containing an organic functional group to the silica sol formed in the silica sol forming step; An organic solvent replacement step of replacing the solvent contained in the silica sol having undergone the surface treatment step with an organic solvent; In addition, an organic solvent-type silica sol comprising a concentration step of concentrating the silica sol after the organic solvent replacement step, and a method for manufacturing the same. Accordingly, a high purity silica sol is prepared by using alkoxy silanes obtained through purification, and an organic solvent-type silica sol is prepared through silane surface treatment and substitution and concentration of organic solvents, thereby producing electric and electronic information such as semiconductor displays. The advantage is that the application of the material is possible.;Functional Alkoxy Silane Organic Solvent Silica Sol