Browse > Article
http://dx.doi.org/10.3740/MRSK.2016.26.3.136

Correlation Research of Dispersion Factors on the Silica Sol Prepared from Fumed Silica  

Park, Min-Gyeong (Eco-Composite Materials Center, Korea Institute of Ceramic Engineering & Technology (KICET))
Kim, Hun (Han Tech Co., Ltd.)
Lim, Hyung Mi (Eco-Composite Materials Center, Korea Institute of Ceramic Engineering & Technology (KICET))
Choi, Jinsub (Department of Chemistry and Chemical Engineering, Inha University)
Kim, Dae Sung (Eco-Composite Materials Center, Korea Institute of Ceramic Engineering & Technology (KICET))
Publication Information
Korean Journal of Materials Research / v.26, no.3, 2016 , pp. 136-142 More about this Journal
Abstract
To study the dispersion factors of silica sol prepared from fumed silica powder, we prepared silica sol under an aqueous system using a batch type bead mill. The dispersion properties of silica sol have a close relationship to dispersion factors such as pH, milling time and speed, the size and amount of zirconia beads, the solid content of fumed silica, and the shape and diameter of the milling impellers. Especially, the silica particles in silica sol were found to show dispersion stability on a pH value above 7, due to the electrostatic repulsion between the particles having a high zeta potential value. The shape and diameter of the impellers installed in the bead mill for the dispersion of fumed silica was very important in reducing the particle size of the aggregated silica. The median particle size ($D_{50}$) of silica sol obtained after milling was also optimized according to the variation of the size and amount of the zirconia beads that were used as the grinding medium, and according to the solid content of fumed silica. The dispersion properties of silica sol were investigated using zeta potential, turbiscan, particle size analyzer, and transmission electron microscopy.
Keywords
fumed silica; silica sol; dispersion factor; bead mill; milling impeller;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 A. Amiri, G. Oye and J. Sjoblom, Colloids Surf. A, 349, 43 (2009).   DOI
2 G. R. Wiese and T. W. Healy, Trans. Faraday Soc., 66, 490 (1970).   DOI
3 K. H. Hwang, J. H. Park and T. K. Yoon, J. Korean Ceram. Soc., 31, 337 (1994) (in Korean).
4 K. Lee, University physics for scientists and engineers, 182, Hanbitacademy, Seoul, (2011).
5 T. Kashiwagi, J. W. Gilman, K. M. Butler, R. H. Harris, J. R. Shields and A. Asano, Fire Mater., 24, 277 (2000).   DOI
6 Y. M. Ahn, J. Y. Yoon, C. W. Baek and Y. K. Kim, Wear, 257, 785 (2004).   DOI
7 A. M. Buckley and M. Greenblatt, J. Chem. Educ., 71, 599 (1994).   DOI
8 H. Barthel, M. Dreyer, T. Gottschalk-Gaudig, V. Litvinov and E. Nikitina, Macromol. Symp., 187, 573 (2002).
9 I. A. Rahman and V. Padavettan, Nanomaterials., 2012, 15 (2012).
10 H. C. Lee, J. H. Kim and Y. H. Chang, J. Korean Ind. Eng. Chem., 17, 386 (2006) (in Korean).
11 S. E. Pratisinis, Prog. Energy Combust. Sci., 24, 197 (1998).   DOI
12 R. V. Lakshmi, T. Bharathidasan and B. J. Basu, Appl. Surf. Sci., 257, 10421 (2011).   DOI
13 K. Chrissafis, K. M. Paraskevopoulos, G. Z. Papageorgiou and D. N. Bikiaris, J. Appl. Polym. Sci., 110, 1739 (2008).   DOI
14 M. J. Park, J. W. Ahn and H. Kim, J. Korean Ceram. Soc., 38, 343 (2001) (in Korean).
15 J. H. Yu, S. H. Jung, G. P. Hong, J. S. Mun and J. B. Kang, J. Korean Ceram. Soc., 46, 24 (2009) (in Korean).   DOI
16 H. K. Kang, H. C. Park and H. C. Park, J. Korean Ind. Eng. Chem., 8, 704 (1997) (in Korean).
17 H. S. Park, B. S. Cho, E. S. Yoo, J. B. Ahn and S. T. Noh, Appl. Chem. Eng., 22, 384 (2011) (in Korean).
18 H. M. Lim, J. H. Lee, J. H. Jeong, S. G. Oh and S. H. Lee, Eng., 2, 998 (2010).   DOI
19 T. Takatsuka, T. Endo, Y. Jianguo, K. Yuminoki and N. Hashimoto, Chem. Pharm. Bull., 57, 1061 (2009).   DOI
20 D. H. Lee, G. S. Cho, H. M. Lim, D. S. Kim, C. Y. Kim and S. H. Lee, J. Ceram. Process. Res., 14, 274 (2013).