Characterization of particle aggregation in a colloidal suspension of magnetite particles

Jungsang Cho; Sangkyun Koo

Journal of Industrial and Engineering Chemistry, Vol.27, 218-222, July, 2015

DOI10.1016/j.jiec.2014.12.038 Export Citation

Characterization of particle aggregation in a colloidal suspension of magnetite particles

Jungsang Cho, and Sangkyun Koo^†

Department of Industrial Chemistry, Sangmyung University, Seoul 110-743, Republic of Korea

E-mail:

We investigate relation between hydrodynamic transport properties of a colloidal suspension of magnetite particles and aggregation of the particles. The magnetite particles are of 0.3 μm in diameter and are dispersed in Newtonian ethylene glycol. The volume fraction of the particles in the suspension ranges from 0.003 to 0.04. Shear viscosity and average sedimentation velocity of the suspension are measured as a function of the particle volume fraction. To predict the aggregation of the suspended particles particle-scale analysis of sedimentation and viscosity behavior of the suspension is correlated with scaling theories for fractal aggregates. The sedimentation velocity as a function of particle concentration gives the fractal dimension of 1.91 for the magnetite aggregates in the suspension. Shear dependence of the aggregate size which is expressed by a power law is determined from intrinsic viscosity for the aggregates and yield stress of the suspension, respectively. It is found that the shear dependence from intrinsic viscosity is in good agreement with that from yield stress.

Keywords:Fractal dimension;Particle aggregates;Sedimentation;Intrinsic viscosity;Yield stress

[References]

Horng HE, Hong CY, Yang SY, Yang HC, J. Phys. Chem. Solids, 62, 1749 (2001)
Xu XL, Majetich SA, Asher SA, J. Am. Chem. Soc., 124(46), 13864 (2002)
Seo JW, Jeon SM, Park SJ, Lee HS, J. Magn. Magn. Mater., 252, 353 (2002)
Ge JP, Lee H, He L, Kim J, Lu ZD, Kim H, Goebl J, Kwon S, Yin YD, J. Am. Chem. Soc., 131(43), 15687 (2009)
Smith TL, Bruce CA, J. Colloid Interface Sci., 72, 13 (1979)
Sonntag RC, Russel WB, J. Colloid Interface Sci., 113, 399 (1986)
Potanin AA, J. Chem. Phys., 96, 9191 (1992)
de Rooij R, Potanin AA, van den Ende D, Mellema J, J. Chem. Phys., 99, 9213 (1993)
Potanin AA, J. Colloid Interface Sci., 175, 339 (1993)
Snabre P, Mills P, J. Phys. III, 6, 1811 (1996)
Genovese DB, Adv. Colloid Interface Sci., 171-172, 1 (2012)
Mewis J, Wagner NJ, Colloidal Suspension Rheology, Cambridge University Press, Cambridge, UK, 2012.
Lee B, Koo S, Powder Technol., 266, 16 (2014)
Rosensweig RE, Ferrohydrodynamics, Dover Pub., Inc, Mineola, NY, 1985.
Kwon TM, Jhon MS, Choi HJ, J. Mol. Liq., 75, 115 (1998)
Zhou ZW, Scales PJ, Boger DV, Chem. Eng. Sci., 56(9), 2901 (2001)
Jeon J, Koo S, J. Magn. Magn. Mater., 324, 424 (2012)
Bossis G, Lacis S, Meunier A, Volkova O, J. Magn. Magn. Mater., 252, 224 (2002)
Krieger IM, Dougherty TJ, Trans. Soc. Rheol., 3, 137 (1959)
Casson N, in: Mill CC (Ed.), Rheology of Disperse Systems, Pergamon Press, New York, NY, 1959.
Allain C, Cloitre M, Wafra M, Phys. Rev. Lett., 74, 1478 (1995)
Tseng WJ, Lin KC, Mater. Sci. Eng., 186 (2003)

[Referenced By]

[1] Horng HE, Hong CY, Yang SY, Yang HC, J. Phys. Chem. Solids, 62, 1749 (2001)

[2] Xu XL, Majetich SA, Asher SA, J. Am. Chem. Soc., 124(46), 13864 (2002)

[3] Seo JW, Jeon SM, Park SJ, Lee HS, J. Magn. Magn. Mater., 252, 353 (2002)

[4] Ge JP, Lee H, He L, Kim J, Lu ZD, Kim H, Goebl J, Kwon S, Yin YD, J. Am. Chem. Soc., 131(43), 15687 (2009)

[5] Smith TL, Bruce CA, J. Colloid Interface Sci., 72, 13 (1979)

[6] Sonntag RC, Russel WB, J. Colloid Interface Sci., 113, 399 (1986)

[7] Potanin AA, J. Chem. Phys., 96, 9191 (1992)

[8] de Rooij R, Potanin AA, van den Ende D, Mellema J, J. Chem. Phys., 99, 9213 (1993)

[9] Potanin AA, J. Colloid Interface Sci., 175, 339 (1993)

[10] Snabre P, Mills P, J. Phys. III, 6, 1811 (1996)

[11] Genovese DB, Adv. Colloid Interface Sci., 171-172, 1 (2012)

[12] Mewis J, Wagner NJ, Colloidal Suspension Rheology, Cambridge University Press, Cambridge, UK, 2012.

[13] Lee B, Koo S, Powder Technol., 266, 16 (2014)

[14] Rosensweig RE, Ferrohydrodynamics, Dover Pub., Inc, Mineola, NY, 1985.

[15] Kwon TM, Jhon MS, Choi HJ, J. Mol. Liq., 75, 115 (1998)

[16] Zhou ZW, Scales PJ, Boger DV, Chem. Eng. Sci., 56(9), 2901 (2001)

[17] Jeon J, Koo S, J. Magn. Magn. Mater., 324, 424 (2012)

[18] Bossis G, Lacis S, Meunier A, Volkova O, J. Magn. Magn. Mater., 252, 224 (2002)

[19] Krieger IM, Dougherty TJ, Trans. Soc. Rheol., 3, 137 (1959)

[20] Casson N, in: Mill CC (Ed.), Rheology of Disperse Systems, Pergamon Press, New York, NY, 1959.

[21] Allain C, Cloitre M, Wafra M, Phys. Rev. Lett., 74, 1478 (1995)

[22] Tseng WJ, Lin KC, Mater. Sci. Eng., 186 (2003)