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Title: Organic aerogel microspheres and fabrication method therefor

Abstract

Organic aerogel microspheres which can be used in capacitors, batteries, thermal insulation, adsorption/filtration media, and chromatographic packings, having diameters ranging from about 1 micron to about 3 mm. The microspheres can be pyrolyzed to form carbon aerogel microspheres. This method involves stirring the aqueous organic phase in mineral oil at elevated temperature until the dispersed organic phase polymerizes and forms nonsticky gel spheres. The size of the microspheres depends on the collision rate of the liquid droplets and the reaction rate of the monomers from which the aqueous solution is formed. The collision rate is governed by the volume ratio of the aqueous solution to the mineral oil and the shear rate, while the reaction rate is governed by the chemical formulation and the curing temperature.

Inventors:
; ; ;
Issue Date:
Research Org.:
University of California
OSTI Identifier:
215238
Patent Number(s):
5,508,341
Application Number:
PAN: 8-089,119
Assignee:
Univ. of California, Oakland, CA (United States)
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 16 Apr 1996
Country of Publication:
United States
Language:
English
Subject:
40 CHEMISTRY; MICROSPHERES; CHEMICAL PREPARATION; PYROLYSIS; MONOMERS; POLYMERIZATION; OILS; MIXING; TEMPERATURE DEPENDENCE; USES

Citation Formats

Mayer, S T, Kong, F M, Pekala, R W, and Kaschmitter, J L. Organic aerogel microspheres and fabrication method therefor. United States: N. p., 1996. Web.
Mayer, S T, Kong, F M, Pekala, R W, & Kaschmitter, J L. Organic aerogel microspheres and fabrication method therefor. United States.
Mayer, S T, Kong, F M, Pekala, R W, and Kaschmitter, J L. Tue . "Organic aerogel microspheres and fabrication method therefor". United States.
@article{osti_215238,
title = {Organic aerogel microspheres and fabrication method therefor},
author = {Mayer, S T and Kong, F M and Pekala, R W and Kaschmitter, J L},
abstractNote = {Organic aerogel microspheres which can be used in capacitors, batteries, thermal insulation, adsorption/filtration media, and chromatographic packings, having diameters ranging from about 1 micron to about 3 mm. The microspheres can be pyrolyzed to form carbon aerogel microspheres. This method involves stirring the aqueous organic phase in mineral oil at elevated temperature until the dispersed organic phase polymerizes and forms nonsticky gel spheres. The size of the microspheres depends on the collision rate of the liquid droplets and the reaction rate of the monomers from which the aqueous solution is formed. The collision rate is governed by the volume ratio of the aqueous solution to the mineral oil and the shear rate, while the reaction rate is governed by the chemical formulation and the curing temperature.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {4}
}