Graphene Composite Fiber and Method for Manufacturing the Same
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United States of America Patent
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Aug 6, 2015
app pub date -
Jun 16, 2014
filing date -
Feb 5, 2014
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Abstract
Disclosed is a graphene composite fiber and a method for manufacturing the same. The graphene composite fiber includes a polymer material and graphene sheets which are 1˜10% by weight of the graphene composite fiber, each having a modified layer with first organic functional groups and second organic functional groups for forming chemical bonds with the surface of the graphene sheet and the polymer material, respectively. The polymer material is a thermoplastic polymer for enclosing the graphene sheets. The method includes steps of preparing graphene sheets, modifying the surfaces of the graphene sheets, adding melted polymer material, blending, forming composite raw particles through the granulator, and finally spinning to form the graphene composite fibers. The graphene composite fibers of the present invention are manufactured by simple processes and possess excellent mechanical strength, thermal conductivity and electrical conductivity, thereby replacing commonly used fibers.
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