Method of low pressure and/or evaporative drying of aerogel

Patent · Sat Dec 31 23:00:00 EST 1994

OSTI ID:869909

Mayer, Steven T ^[1]; Kaschmitter, James L ^[2]; Pekala, Richard W ^[3]

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1. San Leandro, CA
2. Pleasanton, CA
3. Pleasant Hill, CA

A process whereby Resorcinol/Formaldehyde (RF) aerogel having a density of about 0.4-1.2 g/cc can be manufactured using a simple air drying procedure. This process is inherently simpler, quicker, and less expensive than the more conventional supercritical or subcritical CO.sub.2 extraction procedures. RF aerogels can be used as produced, such as in insulation applications, or pyrolyzed to form carbon aerogels with a density of about 0.9 g/cc for use in applications such as batteries, supercapacitors, etc.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA
• DOE Contract Number: W-7405-ENG-48
• Assignee: Regents of University of California (Oakland, CA)
• Patent Number(s): US 5420168
• OSTI ID: 869909
• Country of Publication: United States
• Language: English

Related Subjects

/521/502/
4-1
aerogel
aerogels
air
air drying
applications
batteries
carbon
carbon aerogel
carbon aerogels
cc
conventional
density
drying
etc
evaporative
evaporative drying
expensive
extraction
form
form carbon
formaldehyde
inherently
insulation
manufactured
method
pressure
procedure
procedures
process
process whereby
produced
pyrolyzed
quicker
resorcinol
rf
simple
simpler
subcritical
supercapacitors
supercritical
whereby