n this study, we use giant lamellar graphite (500μm) to prepare graphene oxide (GO). The amine alcohol solution was adopted as a coagulation liquid to integrate the large GO sheets into macroscopic fibers by wet-spinning method. A meters-long graphene fibers were continuously spun from GO suspensions followed by chemical reduction with HI(40％). Then, the mechanical performances and the electrochemical performance of the fiber were investigated. The mechanical strength of the fibers before reduction can be achieved about 200 MPa, and a 430MPa was obtained after the reduction. Both of the fiber existed with good flexibility, and the electronic conductivity of the fiber is about 38 S/Cm.

Wet-spinning of graphene fibers from giant graphene oxide sheets by adopting a series of amine alcohol solution as coagulation solution

249th National Meeting (2015)

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