Abstract
In the electrospinning process, a modified parallel electrode method (MPEM), conducted by placing a positively charged ring between the needle and the parallel electrode collector, was used to fabricate highly aligned carbon nanotubes/polyacrylonitrile (CNTs/PAN) composite nanofibers. Characterizations of the samples—such as morphology, the degree of alignment, and mechanical and conductive properties—were investigated by a combination of scanning electron microscopy (SEM), transmission electron microscopy (TEM), universal testing machine, high-resistance meter, and other methods. The results showed the MPEM could improve the alignment and uniformity of electrospun CNTs/PAN composite nanofibers, and enhance their mechanical and conductive properties. This meant the successful preparation of highly aligned CNT-reinforced PAN nanofibers with enhanced physical properties, suggesting their potential application in appliances and communication areas.
Highlights
Polymer nanocomposites with nanoparticles show amazing mechanical, electrical, and thermal properties due to the interaction between the polymer matrixes and nanoparticles [1,2,3]
Content, the diameters of the composite nanofibers increased and their surface became rough, which could be related to the aggregation of single-walled carbon nanotubes (SWCNTs) and the bundling phenomenon during the modified parallel electrode method (MPEM)
The results showed the properties of PAN nanofibers were improved by adding SWCNTs
Summary
Polymer nanocomposites with nanoparticles show amazing mechanical, electrical, and thermal properties due to the interaction between the polymer matrixes and nanoparticles [1,2,3]. We presented a modified parallel electrode method (MPEM) by placing a positively charged ring between the needle and the parallel electrode collector to fabricate highly aligned electrospun the needle and parallel electrode collector to1fabricate highly aligned electrospunofnanofibers for nanofibers for athe long spinning time [24]. The results showed the MPEM could improve the uniformity of diameter distribution andand the the degree of alignment of electrospun composite nanofibers. Mechanical degree of alignment of electrospun mechanical and and conductive properties the composite nanofibers were enhanced. PAN nanofibers, strong interfacial adhesion, uniform dispersion, and high alignment were more crucial more crucial factors for improving the physical properties of the composite nanofibers.
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