Resorcinol-formaldehyde aerogels and their carbonized derivatives

Conference · Mon Oct 24 00:00:00 EDT 1988

OSTI ID:6482809

Pekala, R W; Kong, F M

Organic aerogels are produced from the supercritical drying of resorcinol-formaldehyde gels. The aerogels have continuous porosity with cell/pore sizes <1000 /angstrom/. Their morphology consists of interconnected colloidal-like particles with diameters of 30--100 /angstrom/. The microstructure is retained even after pyrolysis to 1075/degree/C. The particle size, cell size, surface area, and density of both the resorcinol-formaldehyde aerogels and their carbonized derivatives are largely determined by the catalyst concentration used in the gel synthesis. A major benefit of carbonization is the superior mechanical properties of the resultant aerogels. 10 refs., 6 figs.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6482809
• Report Number(s): UCRL-99846; CONF-890401-1; ON: DE89002274
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation &amp; Manufacture
360602* -- Other Materials-- Structure &amp; Phase Studies
ALDEHYDES
AROMATICS
CARBONIZATION
CATALYSTS
CHEMICAL REACTIONS
COLLOIDS
CRYSTAL STRUCTURE
DECOMPOSITION
DEVELOPERS
DISPERSIONS
DRYING
FORMALDEHYDE
GELS
HYDROXY COMPOUNDS
MECHANICAL PROPERTIES
MICROSTRUCTURE
ORGANIC COMPOUNDS
PARTICLE SIZE
PHENOLS
POLYPHENOLS
POROSITY
RESORCINOL
SIZE
SURFACE AREA
SURFACE PROPERTIES