Ultra-low density microcellular polymer foam and method
Abstract
An ultra-low density, microcellular open-celled polymer foam and a method for making such foam are disclosed. A polymer is dissolved in a heated solution consisting essentially of at least one solvent for the dissolution of the polymer in the heated solution and the phase inversion of the dissolved polymer to a liquid gel upon sufficient cooling of the heated solution. The heated solution is contained in a containment means provided with a nucleating promoting means having a relatively rough surface formed of fixed nucleating sites. The heated solution is cooled for a period of time sufficient to form a liquid gel of the polymer by phase inversion. From the gel, a porous foam having a density of less than about 12.0 mg/cm{sup 3} and open porosity provided by well interconnected strut morphology is formed.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 203874
- Patent Number(s):
- 5500450
- Application Number:
- PAN: 8-417,366
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 19 Mar 1996
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; FOAMS; SYNTHESIS; POLYMERS; SOL-GEL PROCESS; PORE STRUCTURE; PHASE TRANSFORMATIONS; NUCLEATION
Citation Formats
Simandl, R F, and Brown, J D. Ultra-low density microcellular polymer foam and method. United States: N. p., 1996.
Web.
Simandl, R F, & Brown, J D. Ultra-low density microcellular polymer foam and method. United States.
Simandl, R F, and Brown, J D. Tue .
"Ultra-low density microcellular polymer foam and method". United States.
@article{osti_203874,
title = {Ultra-low density microcellular polymer foam and method},
author = {Simandl, R F and Brown, J D},
abstractNote = {An ultra-low density, microcellular open-celled polymer foam and a method for making such foam are disclosed. A polymer is dissolved in a heated solution consisting essentially of at least one solvent for the dissolution of the polymer in the heated solution and the phase inversion of the dissolved polymer to a liquid gel upon sufficient cooling of the heated solution. The heated solution is contained in a containment means provided with a nucleating promoting means having a relatively rough surface formed of fixed nucleating sites. The heated solution is cooled for a period of time sufficient to form a liquid gel of the polymer by phase inversion. From the gel, a porous foam having a density of less than about 12.0 mg/cm{sup 3} and open porosity provided by well interconnected strut morphology is formed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {3}
}