研究目的
Investigating the formation of single fibres of polymer nanocomposite PVDF-HFP containing MWCNT by Pyro-EHD electrospinning and their electrical conductivity.
研究成果
Pyro-EHD printing is an easy and versatile technique for the production of single fibres of PVDF-HFP containing MWCNT, showing a remarkable reduction in the percolation threshold and an increase in electrical conductivity. This opens the way to direct printing fibres and well-ordered patterns for advanced technologies.
研究不足
The study is limited to the specific polymer nanocomposite PVDF-HFP/MWCNT and the Pyro-EHD electrospinning technique. The electrical conductivity measurements for pure PVDF-HFP single-fibre were limited by the experimental set-up's sensibility.
1：Experimental Design and Method Selection:
Pyro-EHD electrospinning was used to produce continuous micro-/nano-scale fibres directly from polymeric solutions.
2：Sample Selection and Data Sources:
PVDF-HFP/MWCNT solutions were prepared with different MWCNT concentrations.
3：List of Experimental Equipment and Materials:
Poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP), N-N-Dimethylformamide (DMF), multiwalled carbon nanotubes (MWCNT), Keithley Electrometer/High resistance meter (Model 6517A), Resistivity Test Fixture (Model 8009), FEI Quanta 200 FEG microscope.
4：Experimental Procedures and Operational Workflow:
Solutions were prepared, films and fibres were fabricated, and their electrical conductivity and morphology were analyzed.
5：Data Analysis Methods:
Electrical conductivity measurements were performed, and the percolation threshold parameters were calculated using a custom script in GNU Octave.
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