DENSIFICATION OF CARBON-CARBON COMPOSITE MATERIAL WITH COPNA RESIN
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United States of America Patent
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Sep 10, 2015
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Mar 5, 2014
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Mar 5, 2014
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In one example, a method for forming a densified carbon-carbon composite material comprises infiltrating a carbon fiber preform with a monomer mixture for a condensed polynuclear aromatic (COPNA) resin; polymerizing and crosslinking the monomer mixture within the carbon fiber preform to form a crosslinked COPNA by subsequently heating the carbon fiber preform infiltrated with the monomer mixture to a polymerization temperature of the COPNA resin; and carbonizing the crosslinked COPNA resin within the carbon fiber preform by heating the crosslinked COPNA resin to a carbonization temperature to form the densified carbon-carbon composite material, wherein the carbonization temperature is greater than the polymerization temperature.
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