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Apparatus and method for oxidation and stabilization of polymeric materials

United States Patent

May 19, 2009
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
Apparatus and Method for Oxidation and Stabilization of Polymeric Materials
An apparatus for treating polymeric materials comprises a treatment chamber adapted to maintain a selected atmosphere; a means for supporting the polymeric material within the chamber; and, a source of plasma-derived gas containing at least one reactive oxidative species whereby the polymer is stabilized and cross linked through exposure to the oxidative species in the chamber at a selected temperature. The polymer may be directly exposed to the plasma, or alternatively, the plasma may be established in a separate volume from which the reactive species may be extracted and introduced into the vicinity of the polymer. The apparatus may be configured for either batch-type or continuous-type processing. The apparatus and method are especially useful for preparing polymer fibers, particularly PAN fibers, for later carbonization treatments.
Paulauskas; Felix L. (Knoxville, TN), White; Terry L. (Knoxville, TN), Sherman; Daniel M. (Knoxville, TN)
UT-Battelle, LLC (Oak Ridge, TN)
11/ 344,573
January 31, 2006
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH This invention was made with Government support under Contract No. DE-AC05-000R22725 awarded by the U.S. Department of Energy to UT-Battelle, LLC, and the Government has certain rights in this invention.