Low density microcellular carbon or catalytically impregnated carbon foams and process for their prepartion
- Danville, CA
- Pleasant Hill, CA
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 Laboratory (LLNL), Livermore, CA
- DOE Contract Number:
- W-7405-ENG-48
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 4756898
- OSTI ID:
- 866648
- Country of Publication:
- United States
- Language:
- English
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Low density microcellular carbon or catalytically impregnated carbon forms and process for their preparation
Low density microcellular carbon or catalytically impregnated carbon forms and process for their preparation
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carbon
carbon foam
carbon foams
catalyst
catalyst material
catalytically
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chloride
classified
cold
cold pressed
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density
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freeze
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immersed
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impregnated carbon
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internal
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machinable
material
microcellular
microcellular carbon
mixed
particle
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phenolic
polymer
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pores
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pulverized
pyrolyze
remaining
sintered
sintered compact
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sodium
sodium chloride
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structurally stable
submerged
uniformity
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water