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http://dx.doi.org/10.4191/KCERS.2005.42.3.205

Synthesis of Silica Nanopowder via Change in Polymer Gel Concentration  

Kim, Ji-Kyung (School of Materials Science and Engineering, Pusan National University)
Lee, Sang-Geun (School of Materials Science and Engineering, Pusan National University)
Kwon, Jae-Youl (School of Materials Science and Engineering, Pusan National University)
Seo, Geum-Seok (Division of Applied Chemical Engineering, Pukyong National University)
Park, Seong-Soo (Division of Applied Chemical Engineering, Pukyong National University)
Park, Hee-Chan (School of Materials Science and Engineering, Pusan National University)
Publication Information
Journal of the Korean Ceramic Society / v.42, no.3, 2005 , pp. 205-210 More about this Journal
Abstract
Nanoscale silica powder was synthesized from $SiO_2$ precursor solution using Tetraethyl Orthosilicate (TEOS) by polyacrylamide gel method. This process was of simplicity and provided ultrafine powders at relatively low calcination temperatures because polymer network could inhibit aggregation of $SiO_2$ powder. The particle size of Si02 powder was affected by the concentration of ammonium persulphate and N, N'-methylene-bis-acrylamide(BIS) in the gel precursor. The particle size decreased with increasing ammonium persulphate and was mininum size of 10 nm at 0.01 M. Also, the size decreased with increasing BIS concentration and was 5 nm at its concentration of 0.05 M.
Keywords
Silica; Nano powder; Precursor; Polyacrylamide gel;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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