Coaxial electrostatic spinning polyurethane/graphene conductive fiber, preparation and application

The invention provides a coaxial electrostatic spinning polyurethane/graphene conductive fiber as well as preparation and application thereof. The coaxial electrostatic spinning polyurethane/graphene conductive fiber is prepared into a porous PU/PDA/rGO coaxial nanofiber which takes polyurethane (PU) as a skin layer and graphene oxide (GO) as a core layer by adopting coaxial electrostatic spinning; dA is subjected to in-situ polymerization in the coaxial electrostatic spinning and vacuum drying process by using the reaction activity of DA, and meanwhile, reduced graphene oxide (rGO) is generated through synchronous reduction and is adhered to the surface of PU, so that excessive aggregation of rGO in the conventional loading process and falling in the use process are improved. In order to improve the polymerization rate of DA in N, N-dimethylformamide (DMF), triethylamine is added to capture H < + > generated by dopamine polymerization and promote dopamine polymerization. The PU/PDA/rGO coaxial nanofiber prep