skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: High strength air-dried aerogels

Abstract

A method for the preparation of high strength air-dried organic aerogels. The method involves the sol-gel polymerization of organic gel precursors, such as resorcinol with formaldehyde (RF) in aqueous solvents with R/C ratios greater than about 1000 and R/F ratios less than about 1:2.1. Using a procedure analogous to the preparation of resorcinol-formaldehyde (RF) aerogels, this approach generates wet gels that can be air dried at ambient temperatures and pressures. The method significantly reduces the time and/or energy required to produce a dried aerogel compared to conventional methods using either supercritical solvent extraction. The air dried gel exhibits typically less than 5% shrinkage.

Inventors:
;
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1080443
Patent Number(s):
8304465
Application Number:
11/335,297
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08J - WORKING-UP
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Coronado, Paul R., and Satcher, Jr., Joe H. High strength air-dried aerogels. United States: N. p., 2012. Web.
Coronado, Paul R., & Satcher, Jr., Joe H. High strength air-dried aerogels. United States.
Coronado, Paul R., and Satcher, Jr., Joe H. Tue . "High strength air-dried aerogels". United States. https://www.osti.gov/servlets/purl/1080443.
@article{osti_1080443,
title = {High strength air-dried aerogels},
author = {Coronado, Paul R. and Satcher, Jr., Joe H.},
abstractNote = {A method for the preparation of high strength air-dried organic aerogels. The method involves the sol-gel polymerization of organic gel precursors, such as resorcinol with formaldehyde (RF) in aqueous solvents with R/C ratios greater than about 1000 and R/F ratios less than about 1:2.1. Using a procedure analogous to the preparation of resorcinol-formaldehyde (RF) aerogels, this approach generates wet gels that can be air dried at ambient temperatures and pressures. The method significantly reduces the time and/or energy required to produce a dried aerogel compared to conventional methods using either supercritical solvent extraction. The air dried gel exhibits typically less than 5% shrinkage.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {11}
}

Patent:

Save / Share:

Works referenced in this record:

Organic and carbon aerogels from the NaOH-catalyzed polycondensation of resorcinol-furfural and supercritical drying in ethanol
journal, January 2005


Structure and Performance of Carbon Aerogel Electrodes
journal, January 1994


Aerogels derived from multifunctional organic monomers
journal, January 1992


Carbon Aerogels and Xerogels
journal, January 1992


Organic aerogels from the polycondensation of resorcinol with formaldehyde
journal, September 1989


Electrochemical Behavior of Carbon Aerogels Derived From Different Precursors
journal, January 1995