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US 6,746,627 B2Granted
Methods for preparing polyvinylidene fluoride composites
AssigneeHyperion Catalysis International, Inc.
InventorsChunming Niu, Lein Ngaw
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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 mixing or dispersing carbon nanotubes in polymer emulsion using an energy source such as a Waring blender. The liquid in the mixture is then evaporated to obtain the composite comprising the polymer and the nanotubes.
Claims6
A method for preparing an electrically conductive composite comprising the steps of:
- (a) mixing carbon nanotubes with a polymer emulsion, said emulsion comprising a liquid and a polymer selected from the group consisting of polyvinylidene fluoride and copolymer of vinylidene fluoride and another monomer;
- and
- (b) removing said liquid to form a composite comprising said nanotubes and said polymer, wherein said nanotubes have a diameter less than about 100 nanometers.
Dependencies are inferred from the claim text.