Flexible polymer/multi-walled carbon nanotube composite films for thermoelectric generators

ABSTRACTHigh molecular weight polyaniline / multi-walled carbon nanotube composite films were fabricated using solution processing. Composite films with various weight percentages of multiwalled carbon nanotubes were fabricated. Physical properties of these composites were analyzed by thermogravimetric analysis, tensile testing, and scanning electron microscopy. These results indicate that the addition of multiwalled nanotubes to polyaniline significantly enhances the mechanical properties of the films. In addition, metal–semiconductor (composite) (MS) contact devices were fabricated, and it was observed that the current level in the films increased with increasing multiwalled nanotube content. Furthermore, it was observed that polyaniline containing one weight percent of carbon nanotubes appears to be the most promising composition for applications in organic electronic devices.

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Percolation-amplified infrared sensitivity in titanium oxide-multi-walled carbon nanotube composite films

Nanotechnology ◽

10.1088/1361-6528/ab0830 ◽

2019 ◽

Vol 30 (23) ◽

pp. 235702

Author(s):

Qian Liang ◽

Xiangdong Xu ◽

Huaxin Zhou ◽

Junsung Park ◽

Jimmy Xu ◽

...

Keyword(s):

Carbon Nanotube ◽

Titanium Oxide ◽

Composite Films ◽

Multi Walled Carbon Nanotube ◽

Carbon Nanotube Composite

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Efficient electromagnetic interference shielding and radar absorbing properties of ultrathin and flexible polymer-carbon nanotube composite films

Materials Research Express ◽

10.1088/2053-1591/aade39 ◽

2018 ◽

Vol 5 (11) ◽

pp. 115304 ◽

Cited By ~ 5

Author(s):

G Sudheer Kumar ◽

T Umasankar Patro

Keyword(s):

Carbon Nanotube ◽

Electromagnetic Interference ◽

Composite Films ◽

Electromagnetic Interference Shielding ◽

Flexible Polymer ◽

Carbon Nanotube Composite

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Photoabsorption and desorption studies on poly-3-hexylthiophene/multi-walled carbon nanotube composite films

Surface Science ◽

10.1016/j.susc.2009.01.002 ◽

2009 ◽

Vol 603 (4) ◽

pp. 647-652 ◽

Cited By ~ 11

Author(s):

G. Araújo ◽

C. Arantes ◽

L.S. Roman ◽

A.J.G. Zarbin ◽

M.L.M. Rocco

Keyword(s):

Carbon Nanotube ◽

Composite Films ◽

Multi Walled Carbon Nanotube ◽

Carbon Nanotube Composite

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Physical Properties of Thin PVDF/MWNT (Multi-Walled Carbon Nanotube) Composite Films by Melt Blending

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2008.ic49 ◽

2008 ◽

Vol 8 (9) ◽

pp. 4860-4863 ◽

Cited By ~ 20

Author(s):

Soon Man Hong ◽

Seung Sang Hwang

Keyword(s):

Electrical Conductivity ◽

Carbon Nanotube ◽

Physical Properties ◽

Vinylidene Fluoride ◽

Composite Films ◽

Nucleating Agent ◽

Multi Walled Carbon Nanotube ◽

Poly Vinylidene Fluoride ◽

Carbon Nanotube Composite ◽

Internal Mixer

Poly(vinylidene fluoride)(PVDF)/Multi-walled carbon nanotube (MWNT) composites were melt blended using internal mixer. The relationships between structures and physical properties of thin PVDF/MWNT composite films were studied. With increasing the content of MWNT, the size of spherulites in PVDF decreased. MWNT was used as a nucleating agent. The incorporation of MWNT produced a polar β-form crystal structure of PVDF. The permittivities of thin PVDF/MWNT composite films were increased with increasing the MWNT content. The percolation level in electrical conductivity occurred between 2 and 2.5 wt%. The critical conductivity saturation point for the electrical conductivity in PVDF was confirmed. Similar tendency was also observed in thermal conductivity.

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