Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지
DOI QR코드

DOI QR Code

Influence of SiO2 Content on Wet-foam Stability for Creation of Porous Ceramics

  • Bhaskar, Subhasree (Institute of Processing and Application of Inorganic Materials, (PAIM), Department of Advanced Material Science and Engineering, Hanseo University) ;
  • Park, Jung Gyu (Institute of Processing and Application of Inorganic Materials, (PAIM), Department of Advanced Material Science and Engineering, Hanseo University) ;
  • Cho, Gae Hyung (Institute of Processing and Application of Inorganic Materials, (PAIM), Department of Advanced Material Science and Engineering, Hanseo University) ;
  • Seo, Dong Nam (Institute of Processing and Application of Inorganic Materials, (PAIM), Department of Advanced Material Science and Engineering, Hanseo University) ;
  • Kim, Ik Jin (Institute of Processing and Application of Inorganic Materials, (PAIM), Department of Advanced Material Science and Engineering, Hanseo University)
  • Received : 2014.07.29
  • Accepted : 2014.09.11
  • Published : 2014.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

The thermodynamic instability of bubbles in wet-foam colloidal suspension is due to the substantial area of their gas/liquid interface. Several physical processes lead to gas diffusion from smaller to larger bubbles, resulting in a coarsening and Ostwald ripening of wet foam. This includes a narrowing of the bubble size distribution. The distribution and microstructure of porous ceramics, the adsorption free energy and Laplace pressure of $Al_2O_3$ particle-stabilized colloidal suspension, and $SiO_2$ content were investigated for tailoring the bubble size. Wet-foam stability of more than 80% is related to the degree of hydrophobicity with contact angles of $62-70^{\circ}$ achieved from the surfactant. The contact angle replaces part of the highly energetic interface and lowers the free energy of the system. This leads to an apparent increase in the surface tension (26-33 mN/m) of the colloidal suspension.

Keywords

References

  1. O. Paulson and R. J. Pugh, "Flotation of Inherently Hydrophobic Particles in Aqueous Solution of Inorganic Electrolytes," Langmuir, 12 [20], 4808-13 (1996). https://doi.org/10.1021/la960128n
  2. S. Ata and P. D. Yates, "Stability and Flotation Behaviour of Silica in the Presence of a Non-polar Oil and Cationic Surfactant," Colloids Surf. A, 277 [1-3], 1-7 (2006). https://doi.org/10.1016/j.colsurfa.2005.10.062
  3. M. Srinivasarao, D. Collings, A. Philips, and S. Patel, "Three-dimensionally Ordered Array of Air Bubbles in a Polymer Film," Science, 292 [5514], 79-83 (2001). https://doi.org/10.1126/science.1057887
  4. N. J. Shirtcliffe, G. McHale, M. I. Newton, and C. C. Perry, "Intrinsically Super Hydrophobic Organo-silica Sol-gel Foams," Langmuir, 19 [14], 5626-31 (2003). https://doi.org/10.1021/la034204f
  5. H. Zhang and A. I. Cooper, "Synthesis and Application of Emulsion-templated Porous Materials," Soft Matter, 2, 1107-13 (2005).
  6. Y. W. Kim, C. Wang, and C. B. Park, "Processing of Porous Silicon Oxycarbide Ceramics from Extruded Blends of Polysiloxane and Polymer Microbead," J. Ceram. Soc. Jpn., 115 [7], 419-24 (2007). https://doi.org/10.2109/jcersj.115.419
  7. A. Pokhrel, J. G. Park, J. S. Nam, D. S. Cheong, and I. J. Kim, "Stabilization of Wet Foams for Porous Ceramics Using Amphiphilic Particles," J. Kor. Ceram. Soc., 48 [5], 463-66 (2011). https://doi.org/10.4191/kcers.2011.48.5.463
  8. Q. Liu, S. Zhang, D. Sun, and J. Xu, "Aqueous Foams Stabilized by Hexylamine-modified Laponite Particles," Colloids Surf. A, 338 [1-3], 40-46 (2009).
  9. T. Uchikoshi, L. Kreethawate, C. Matsunaga, S. Larpkiattaworn, S. Jiemsirilers, and L. Besra, "Fabrication of Ceramic Membranes on Porous Ceramic Supports by Electrophoretic Deposition," Adv. Appl. Ceram., 113 [1], 3-7 (2014). https://doi.org/10.1179/1743676113Y.0000000111
  10. R. J. Darby, I. Farnan, and R. V. Kumar, "Method for Making Minor Dopant Additions to Porous Ceramics," Adv. Appl. Ceram., 108 [8], 506-08 (2009). https://doi.org/10.1179/174367609X459531
  11. A. Pokhrel, J. G. Park, W. Zhao, and I. J. Kim, "Functional Porous Ceramics Using Amphiphilic Molecule," J. Ceram. Proc. Res., 13 [4], 20-24 (2012).
  12. G. Kaptay, "On the Equation of the Maximum Capillary Pressure Induced by Solid Particles to Stabilize Emulsions and Foams and on the Emulsion Stability Diagrams," Colloids Surf. A, 282, 387-401 (2006).
  13. U. T. Gonzenabach, A. R. Studart, E. Tervoort, and L. J. Gauckler, "Stabilization of Foams with Inorganic Colloidal Particles," Langmuir, 22 [26], 10983-88 (2006). https://doi.org/10.1021/la061825a
  14. D. M. Alguacil, E. Tervoort, C. Cattin, and L. J. Gauckler, "Contact Angle and Adsorption Behavior of Carboxylic Acids on ${\alpha}-Al_2O_3$ Surfaces," J. Colloid Interface. Sci., 353 [2], 512-18 (2011). https://doi.org/10.1016/j.jcis.2010.09.087
  15. T. S. Horozov, "Foams and Foam Films Stabilized by Solid Particles," Curr. Opin. Colloid Interface Sci., 13 [3], 134-40 (2008). https://doi.org/10.1016/j.cocis.2007.11.009
  16. O. Lyckfeldt and J. M. F. Ferreira, "Processing of Porous Ceramics by Starch Consolidation," J. Eur. Ceram. Soc., 18 [2], 131-40 (1998). https://doi.org/10.1016/S0955-2219(97)00101-5
  17. T. N. Hunter, R. J. Pugh, G. V. Fanks, and G. J. Jameson, "A Role of Particles in Stabilizing Foams and Emulsions," Adv. Colloid Interface. Sci., 13 [7], 57-81 (2008).
  18. A. R. Studart, J. Studer, L. Xu, K.Yoon, H. C. Shum, and D. A. Weitz, "Hierarchical Porous Materials made by Drying Complex Suspensions," Langmuir., 27 [3], 955-64 (2011). https://doi.org/10.1021/la103995g
  19. I. Aranberri, B. P. Binks, J. H. Clint, and P. D. I. Fletcher, "Synthesis of Macroporous Silica from Solid-stabilized Emulsion Templates," J. Porous. Mater., 16 [4], 429-37 (2009). https://doi.org/10.1007/s10934-008-9215-x
  20. E. Dickinson, R. Ettelaie, T. Kostakis, and B. S. Murray, "Factors Controlling the Formation and Stability of Air Bubbles Stabilized by Partially Hydrophobic Silica Nanoparticles," Langmuir, 20 [20], 8517-25 (2004). https://doi.org/10.1021/la048913k

Cited by

  1. Effect of Alkaline-Earth Oxide Additives on Flexural Strength of Clay-Based Membrane Supports vol.52, pp.3, 2015, https://doi.org/10.4191/kcers.2015.52.3.180
  2. Particle Stabilized Wet Foam to Prepare SiO2-SiC Porous Ceramics by Colloidal Processing vol.52, pp.6, 2015, https://doi.org/10.4191/kcers.2015.52.6.455