Low density microcellular carbon or catalytically impregnated carbon foams and process for their preparation

Patent · Thu Apr 30 04:00:00 EDT 1987

OSTI ID:6853000

Hooper, R W; Pekala, R W

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.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• Assignee: LLNL; EDB-88-182068
• Patent Number(s): PATENTS-US-A6044253
• OSTI ID: 6853000
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
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& Physical Chemistry
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ALKALI METAL COMPOUNDS
CARBON
CATALYTIC EFFECTS
CHLORIDES
CHLORINE COMPOUNDS
COLLOIDS
DESIGN
DISPERSIONS
ELEMENTS
FOAMS
HALIDES
HALOGEN COMPOUNDS
INVENTIONS
MATERIALS
NONMETALS
SODIUM CHLORIDES
SODIUM COMPOUNDS
THERMONUCLEAR REACTOR MATERIALS