Resorcinol/Formaldehyde Aerogel Fine Powders with Nanopore Structure Prepared by Supercritical CO2 Drying Techniques

Jun-Young Lee; Kyung-Nam Lee; Hae-Joon Lee; Jung-Hyun Kim

Journal of Industrial and Engineering Chemistry, Vol.8, No.6, 546-551, November, 2002

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Resorcinol/Formaldehyde Aerogel Fine Powders with Nanopore Structure Prepared by Supercritical CO2 Drying Techniques

Jun-Young Lee , Kyung-Nam Lee, Hae-Joon Lee, and Jung-Hyun Kim^†

Department of Chemical Engineering, Yonsei University, Seoul 120-749, Korea

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The preparation of resorcinol/formaldehyde (R/F) aerogel powders with nanopore structure by means of the supercritical CO2 drying technique has been studied. Spherical morphology of R/F aerogel powders was confirmed by scanning electron microscopy. The sizes of these fine powders ranged from 4 micrometer to a few hundred micrometers. The particle sizes were controlled by the emulsification conditions. The structure of R/F aerogel powder was revealed by FT-IR and BET analysis. The surface area and pore size of R/F aerogel powders with a fibrous-like network are in the range of 400 m(2)/g to 800 m(2)/g and less than 100 nm, respectively.

Keywords:resorcinol/formaldehyde aerogel;nano porous material;supercritical CO2 technique

[References]

Even WR, Crocker RW, Hunter MC, Yang NC, Headley TJ, J. Non-Cryst. Solids, 186, 191 (1995)
Mayer ST, Kong FM, Pekala RW, Kaschmitter JL, U.S. Patent, 5,508,341 (1996)
Rouanet SF, McGovern WE, Cao W, Moses JM, Carrillo AL, Klotz IM, U.S. Patent, 5,725,836 (1998)
Pekala RW, Hrubesh LW, U.S. Patent, 5,731,360 (1998)
Lee HJ, Song JH, Kim JH, Mater. Lett., 37, 197 (1998)
Lindberg R, Sjblom J, Sundholm G, Colloids Surf. A: Physicochem. Eng. Asp., 99, 79 (1995)
Lee KN, Lee HJ, Lee JY, Kim JH, J. Dispersion Sci. Technol., 22(1), 79 (2001)
Lee KN, Lee HJ, Kim JH, J. Supercrit. Fluids, 17(1), 73 (2000)
Baraton MI, Merle-Mejean T, Quintard P, Lorenzelli V, J. Phys. Chem., 94, 5930 (1990)
Park JM, J. Ind. Eng. Chem., 7(1), 11 (2001)
Park JM, Hong SM, J. Ind. Eng. Chem., 7(1), 23 (2001)
Lu X, Caps R, Fricke J, Alviso CT, Pekala RW, J. Non-Cryst. Solids, 188, 226 (1995)
Kim YC, Lee HS, J. Ind. Eng. Chem., 7(6), 424 (2001)
Ratcliffe RT, Br. J. Appl. Phys., 16, 1193 (1965)
Webb PA, Orr C, Analytical Methods in Fine Particle Technology, Micromeritics Instrument Co. (1997)
Brunauer S, Emmertt PH, Teller E, J. Am. Chem. Soc., 60, 309 (1938)
Francoise R, Jean R, Kenneth S, Adsorption by Powders and Porous Solids; Principles, Methodology and Applications, Academic Press (1999)
Yamada T, Yoshinaga Y, Okuhara T, Bull. Chem. Soc. Jpn., 71(11), 2727 (1998)
Dollimore D, Heal GR, J. Colloid Interface Sci., 33, 508 (1970)
Pekala RW, J. Mater. Sci., 24, 3221 (1989)
Lambert SM, Overturf GE, Wilemski G, Letts SA, Schroencarey D, Cook RC, J. Appl. Polym. Sci., 65(11), 2111 (1997)
Hummel DO, Infrared Analysis of Polymers, Resins and Analysis, Vol. 1, p. 145, Wiley, New York (1971)
Shinoda K, Frigberg S, Emulsion and Solubilization, p. 56, Wiley, New York (1986)
Debye P, Prins W, J. Colloid Sci., 13, 86 (1958)
Lee KN, Lee HJ, Lee JY, Suh YJ, Kim JH, Polymer Colloids; Science and Technology of Latex Systems, Chap. 12, p. 152, ACS Symposium Series 801, American Chemical Society, Washington (2002)
Chatterjee M, Ray J, Chatterjee A, Ganguli D, Joshi SV, Srivastava MP, J. Mater. Sci., 28, 2803 (1993)
Pekala RW, Alviso CT, Kong FM, Hulsey SS, J. Non-Cryst. Solids, 145, 90 (1992)
Fung AWP, Reynolds GAM, Wang ZH, Dresselhaus MS, Dresselhaus G, Pekala RW, J. Non-Cryst. Solids, 186, 200 (1995)

[Referenced By]

[Related Articles]

[1] Even WR, Crocker RW, Hunter MC, Yang NC, Headley TJ, J. Non-Cryst. Solids, 186, 191 (1995)

[2] Mayer ST, Kong FM, Pekala RW, Kaschmitter JL, U.S. Patent, 5,508,341 (1996)

[3] Rouanet SF, McGovern WE, Cao W, Moses JM, Carrillo AL, Klotz IM, U.S. Patent, 5,725,836 (1998)

[4] Pekala RW, Hrubesh LW, U.S. Patent, 5,731,360 (1998)

[5] Lee HJ, Song JH, Kim JH, Mater. Lett., 37, 197 (1998)

[6] Lindberg R, Sjblom J, Sundholm G, Colloids Surf. A: Physicochem. Eng. Asp., 99, 79 (1995)

[7] Lee KN, Lee HJ, Lee JY, Kim JH, J. Dispersion Sci. Technol., 22(1), 79 (2001)

[8] Lee KN, Lee HJ, Kim JH, J. Supercrit. Fluids, 17(1), 73 (2000)

[9] Baraton MI, Merle-Mejean T, Quintard P, Lorenzelli V, J. Phys. Chem., 94, 5930 (1990)

[10] Park JM, J. Ind. Eng. Chem., 7(1), 11 (2001)

[11] Park JM, Hong SM, J. Ind. Eng. Chem., 7(1), 23 (2001)

[12] Lu X, Caps R, Fricke J, Alviso CT, Pekala RW, J. Non-Cryst. Solids, 188, 226 (1995)

[13] Kim YC, Lee HS, J. Ind. Eng. Chem., 7(6), 424 (2001)

[14] Ratcliffe RT, Br. J. Appl. Phys., 16, 1193 (1965)

[15] Webb PA, Orr C, Analytical Methods in Fine Particle Technology, Micromeritics Instrument Co. (1997)

[16] Brunauer S, Emmertt PH, Teller E, J. Am. Chem. Soc., 60, 309 (1938)

[17] Francoise R, Jean R, Kenneth S, Adsorption by Powders and Porous Solids; Principles, Methodology and Applications, Academic Press (1999)

[18] Yamada T, Yoshinaga Y, Okuhara T, Bull. Chem. Soc. Jpn., 71(11), 2727 (1998)

[19] Dollimore D, Heal GR, J. Colloid Interface Sci., 33, 508 (1970)

[20] Pekala RW, J. Mater. Sci., 24, 3221 (1989)

[21] Lambert SM, Overturf GE, Wilemski G, Letts SA, Schroencarey D, Cook RC, J. Appl. Polym. Sci., 65(11), 2111 (1997)

[22] Hummel DO, Infrared Analysis of Polymers, Resins and Analysis, Vol. 1, p. 145, Wiley, New York (1971)

[23] Shinoda K, Frigberg S, Emulsion and Solubilization, p. 56, Wiley, New York (1986)

[24] Debye P, Prins W, J. Colloid Sci., 13, 86 (1958)

[25] Lee KN, Lee HJ, Lee JY, Suh YJ, Kim JH, Polymer Colloids; Science and Technology of Latex Systems, Chap. 12, p. 152, ACS Symposium Series 801, American Chemical Society, Washington (2002)

[26] Chatterjee M, Ray J, Chatterjee A, Ganguli D, Joshi SV, Srivastava MP, J. Mater. Sci., 28, 2803 (1993)

[27] Pekala RW, Alviso CT, Kong FM, Hulsey SS, J. Non-Cryst. Solids, 145, 90 (1992)

[28] Fung AWP, Reynolds GAM, Wang ZH, Dresselhaus MS, Dresselhaus G, Pekala RW, J. Non-Cryst. Solids, 186, 200 (1995)