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Title: 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. These foams can be used for ICF targets.

Inventors:
;
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Research, Washington, DC (United States)
OSTI Identifier:
555459
Patent Number(s):
PATENTS-US-A8417366
Application Number:
ON: DE97009512; PAN: 8-417,366; TRN: AHC29802%%85
Assignee:
US Dept. of Energy, Washington, DC (United States)
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent Application
Resource Relation:
Other Information: PBD: 1995
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 70 PLASMA PHYSICS AND FUSION; POLYMERS; FOAMS; LASER TARGETS; FABRICATION; NUCLEATION; POROSITY; SOLVENTS; INERTIAL CONFINEMENT; DIRECT DRIVE LASER IMPLOSION; USES

Citation Formats

Simandl, R F, and Brown, J D. Ultra-low density microcellular polymer foam and method. United States: N. p., 1995. Web.
Simandl, R F, & Brown, J D. Ultra-low density microcellular polymer foam and method. United States.
Simandl, R F, and Brown, J D. 1995. "Ultra-low density microcellular polymer foam and method". United States. https://www.osti.gov/servlets/purl/555459.
@article{osti_555459,
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. These foams can be used for ICF targets.},
doi = {},
url = {https://www.osti.gov/biblio/555459}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {12}
}