Low density microcellular carbon or catalytically impregnated carbon foams and process for their preparation
Abstract
Machinable and structurally stable, low density microcellular carbon, and catalytically impregnated carbon, foams, and process for their preparation, are provided. Pulverized sodium chloride is classified to improve particle size uniformity, and the classified particles may be further mixed with a catalyst material. The particles are cold pressed into a compact having internal pores, and then sintered. The sintered compact is immersed and then submerged in a phenolic polymer solution to uniformly fill the pores of the compact with phenolic polymer. The compact is then heated to pyrolyze the phenolic polymer into carbon in the form of a foam. Then the sodium chloride of the compact is leached away with water, and the remaining product is freeze dried to provide the carbon, or catalytically impregnated carbon, foam.
- Inventors:
- Issue Date:
- Research Org.:
- Lawrence Livermore National Lab., CA (USA)
- OSTI Identifier:
- 6853000
- Patent Number(s):
- -US-A6044253
- Assignee:
- LLNL; EDB-88-182068
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; FOAMS; DESIGN; CARBON; CATALYTIC EFFECTS; INVENTIONS; SODIUM CHLORIDES; THERMONUCLEAR REACTOR MATERIALS; ALKALI METAL COMPOUNDS; CHLORIDES; CHLORINE COMPOUNDS; COLLOIDS; DISPERSIONS; ELEMENTS; HALIDES; HALOGEN COMPOUNDS; MATERIALS; NONMETALS; SODIUM COMPOUNDS 700209* -- Fusion Power Plant Technology-- Component Development & Materials Testing; 400200 -- Inorganic, Organic, & Physical Chemistry
Citation Formats
Hooper, R.W., and Pekala, R.W. Low density microcellular carbon or catalytically impregnated carbon foams and process for their preparation. United States: N. p., 1987.
Web.
Hooper, R.W., & Pekala, R.W. Low density microcellular carbon or catalytically impregnated carbon foams and process for their preparation. United States.
Hooper, R.W., and Pekala, R.W. Thu .
"Low density microcellular carbon or catalytically impregnated carbon foams and process for their preparation". United States.
@article{osti_6853000,
title = {Low density microcellular carbon or catalytically impregnated carbon foams and process for their preparation},
author = {Hooper, R.W. and Pekala, R.W.},
abstractNote = {Machinable and structurally stable, low density microcellular carbon, and catalytically impregnated carbon, foams, and process for their preparation, are provided. Pulverized sodium chloride is classified to improve particle size uniformity, and the classified particles may be further mixed with a catalyst material. The particles are cold pressed into a compact having internal pores, and then sintered. The sintered compact is immersed and then submerged in a phenolic polymer solution to uniformly fill the pores of the compact with phenolic polymer. The compact is then heated to pyrolyze the phenolic polymer into carbon in the form of a foam. Then the sodium chloride of the compact is leached away with water, and the remaining product is freeze dried to provide the carbon, or catalytically impregnated carbon, foam.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {4}
}