Moisture-sensitive properties of multi-walled carbon nanotubes/polyvinyl alcohol nanofibers prepared by electrospinning electrostatically modified method

Polyvinyl alcohol (PVA) nanofibers reinforced with multi-walled carbon nanotubes (MWCNTs) were fabricated by electrospinning. MWCNTs were introduced into the PVA matrix through the application of an electric field. The morphology of the composite MWCNTs/PVA fibers was characterized by scanning elect...

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Bibliographic Details
Published in:Materials letters 2016-12, Vol.185, p.278-281
Main Authors: Ramos, Pierre G., Morales, Noé J., Goyanes, Silvia, Candal, Roberto J., Rodríguez, Juan
Format: Article
Language:English
Subjects:
Conductivity
Electrical properties
Electrical resistivity
Electrospinning
Electrostatic
Fiber technology
Impedance
Materials science
Multi wall carbon nanotubes
Multi-walled carbon nanotubes
Nanocomposites
Nanofibers
Nanotubes
Polyvinyl alcohol
Polyvinyl alcohols
Relative humidity
Sensors
Studies
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Summary:Polyvinyl alcohol (PVA) nanofibers reinforced with multi-walled carbon nanotubes (MWCNTs) were fabricated by electrospinning. MWCNTs were introduced into the PVA matrix through the application of an electric field. The morphology of the composite MWCNTs/PVA fibers was characterized by scanning electron microscopy. Results show that the nanofibers had a diameter between 48 and 103nm and contained a variable amount of MWCNTs. The electrical properties of MWCNTs/PVA nanofibers were investigated by fabricating impedance-type sensors. The impedance and electrical conductivity of the samples were evaluated in the range 46% and 89% relative humidity. [Display omitted] •CNTs/PVA fibers fabricated by electrospinning modified method.•CNTs deposited onto the surface of PVA nanofibers by using an electric field.•CNTs/PVA nanofibers of 52–107nm in diameter used to sense humidity in air.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2016.08.125