Thermal Stability of Epoxy Resin and its Amine Based Curing Agent Encapsulated in Core-Shell Nanofibers

Coaxial Electrospinning was employed to encapsulate dual component low viscosity epoxy resin and its amine based curing agent in the polyacrylonitrile (PAN) nanofibers for self-healing purposes. Nanofibers’morphology was investigated by scanning electron microscopy (SEM) and transition electron microscopy (TEM). Thermogravimetric analysis (TGA) was used to study the thermal stability and core content of the produces nanofibers. SEM and TEM images showed the electrospun core-shell nanofibers were smooth,continuous, and without beads, with average diameters measured to be 483 nm and 406 nm for encapsulated epoxy and amine nanofibers, respectively. The thermal characterization of the nanofibers reinforced these findings, showing a 24 wt% and 37 wt% availability of the epoxy resin and amine curing agent contained within the PAN nanofibers, respectively.

کلیدواژه ها:

Coaxial Electrospinning ، Core-Shell Nanofibers ، Epoxy Resin ، Amine Based Curing Agent ، Thermal Stability