NSCM (나노스마트복합재료연구실)

Advanced Fiber Science

Electrochemical wet-spinning process

The electrochemical wet-spinning process was newly designed.
Molecular changes and water uptake occurred during the electrochemical wet-spinning process, particularly within the spinneret and coagulation bath.

Fig. Schematic diagrams of the electrochemical wet-spinning process

Fig. Schematic diagrams of the molecular changes
occurring during the wet-spinning process

The void length in the fiber was reduced due to electrochemical wet-spinning.
PAN fibers with excellent mechanical properties were fabricated by electrochemical wet-spinning.

Fig. Schematic illustrations of PAN fibers void structures

Fig. Mechanical property of PAN fibers

Electrospinning

Electrospinning is a fiber production method using electric force for nanofiber formation.
High electrical conductivity and stretchability can be secured through changes in fiber structure.

Fig. Scheme of electrospinning / spraying

Fig. SEM images of electrospun nanocomposites

Nanofiber can secure high transparency by size effect.
Development of electrodes with stretchability, transparency and electrochromic performance through composite formation of nanofibers and electrochromic materials

Fig. Transparent electrode

Fig. Electrochromic devices