Organic aerogel microspheres
Abstract
Organic aerogel microspheres are disclosed 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 nonstick 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:
- Sponsoring Org.:
- USDOE; USDOE, Washington, DC (United States)
- OSTI Identifier:
- 6332906
- Patent Number(s):
- 5908896
- Application Number:
- PPN: US 8-586038
- Assignee:
- Univ. of California, Oakland, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 16 Jan 1996
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; ADSORBENTS; CAPACITORS; COLUMN PACKING; ELECTRIC BATTERIES; FILTERS; MICROSPHERES; ORGANIC COMPOUNDS; PARTICLE SIZE; PYROLYSIS; THERMAL INSULATION; CHEMICAL REACTIONS; DECOMPOSITION; ELECTRICAL EQUIPMENT; ELECTROCHEMICAL CELLS; EQUIPMENT; PACKINGS; SIZE; THERMOCHEMICAL PROCESSES; 360601* - Other Materials- Preparation & Manufacture
Citation Formats
Mayer, S T, Kong, F M, Pekala, R W, and Kaschmitter, J L. Organic aerogel microspheres. United States: N. p., 1999.
Web.
Mayer, S T, Kong, F M, Pekala, R W, & Kaschmitter, J L. Organic aerogel microspheres. United States.
Mayer, S T, Kong, F M, Pekala, R W, and Kaschmitter, J L. Tue .
"Organic aerogel microspheres". United States.
@article{osti_6332906,
title = {Organic aerogel microspheres},
author = {Mayer, S T and Kong, F M and Pekala, R W and Kaschmitter, J L},
abstractNote = {Organic aerogel microspheres are disclosed 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 nonstick 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 = {Tue Jun 01 00:00:00 EDT 1999},
month = {Tue Jun 01 00:00:00 EDT 1999}
}