Paper Title
Fabrication Of Macro Scale Graphene Fibers Via Wet Spinning
Abstract
There has been greatly interest in macro scale graphene based wearable electronics, wearable energy devices and
wire shaped electronic devices for applications flexible, wearable and stretchable electronics. Integration of graphene flakes
into macroscopic fibers with controllable physical properties is a very important way for their application. The main goal of
this study is to investigate physical properties of graphene based fibers fabricated with different size of building blocks. A
facile and effective density gradient centrifugation method was carried out for size sorting of graphene oxide flakes.
Macroscopic graphene fibers were continuously spun from graphene oxide/water suspensions followed by chemical and
thermal reductions to obtain reduced graphene oxide fibers. All wet spinning parameters such as suspension concentration,
injection rate and nozzle diameters were fixed to reveal the effect of average building block size on the structural features
and mechanical properties of graphene based fibers. After all assessments we found that large size and interaction between
building blocks namely graphene oxide flakes have an influential effect on mechanical properties of fibers.
Keywords- Graphene, Graphene Fiber, Wet Spinning.