| 초록 |
While mono-dispersed spherical silica can be manufactured with the hydration and condensation reactions of TEOS, the maximum size of the silica particles is about 1.5㎛. To overcome this limit, a method where the seed was synthesized, dispersed, and then reacted with TEOS again, was introduced. Silica seed of 0.6㎛ size was synthesized using C16-NH2 as an additive and 1㎛ size seed was synthesized using the Stober method. The particle size of the silica produced with 1㎛ silica seed ranged between 1.3 to 1.7㎛, and the particles showed more elliptical-like shape as they became bigger. The particle size of the silica produced with 0.6㎛ silica seed ranged between 1.6 to 1.75㎛, according to the process conditions, in round shape, by a maximum size of 2㎛. |
