Polyvinylidene fluoride composites and methods for preparing same
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United States of America Patent
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Aug 16, 2011
Grant Date -
Sep 18, 2008
app pub date -
Aug 20, 2007
filing date -
Jul 11, 2001
priority date (Note) -
Expired
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Abstract
An electrically conductive composite comprising a polyvinylidene fluoride polymer or copolymer and carbon nanotubes is provided. Preferably, carbon nanotubes may be present in the range of about 0.5-20% by weight of the composite.The composites are prepared by dissolving the polymer in a first solvent to form a polymer solution and then adding the carbon nanotubes into the solution. The solution is mixed using an energy source such as a sonicator or a Waring blender. A precipitating component is added to precipitate out a composite comprising the polymer and the nanotubes. The composite is isolated by filtering the solution and drying the composite.
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