Permeability and structure of resorcinol-formaldehyde gels

Book · Tue Dec 31 00:00:00 EST 1996

OSTI ID:462761

Scherer, G W ^[1]; Alviso, C; Pekala, R; Gross, J ^[2]

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1. Princeton Univ., NJ (United States)
2. Lawrence Livermore National Lab., CA (United States)

The permeability (D) of resorcinol-formaldehyde (RF) gels was measured using a beam-bending technique. For gels made at various solids contents and with different catalyst contents, the permeabilities ranged over a factor of {approximately} 50; the pore radii inferred from D varied from {approximately}3 to 30 nm. Pore radii obtained on RF aerogels using nitrogen desorption were severely affected by compression of the aerogel by capillary forces (resulting from the surface tension of liquid nitrogen). After correction for that effect, the desorption data were found to be in very good agreement with the pore sizes calculated from D.

• OSTI ID: 462761
• Report Number(s): CONF-960401-; ISBN 1-55899-334-7; TRN: IM9719%%231
• Resource Relation: Conference: Spring meeting of the Materials Research Society (MRS), San Francisco, CA (United States), 8-12 Apr 1996; Other Information: PBD: 1996; Related Information: Is Part Of Microporous and macroporous materials; Lobo, R.F. [ed.] [Univ. of Delaware, Newark, DE (United States)]; Beck, J.S. [ed.] [Mobil Technology Co., Paulsboro, NJ (United States)]; Suib, S.L. [ed.] [Univ. of Connecticut, Storrs, CT (United States)]; Corbin, D.R. [ed.] [E.I. Dupont de Nemours and Co., Wilmington, DE (United States)]; Davis, M.E. [ed.] [California Inst. of Tech., Pasadena, CA (United States)]; Iton, L.E. [ed.] [Argonne National Lab., IL (United States)]; Zones, S.I. [ed.] [Chevron Research and Technology Co., Richmond, CA (United States)]; PB: 566 p.; Materials Research Society symposium proceedings, Volume 431
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
GELS
PERMEABILITY
PORE STRUCTURE
CATALYST SUPPORTS
RESORCINOL
FORMALDEHYDE
EXPERIMENTAL DATA