Morphology and electrical properties of multi-walled carbon nanotube/carbon aerogel prepared by using polyacrylonitrile as precursor

RSC Advances ◽  
2015 ◽  
Vol 5 (62) ◽  
pp. 49944-49952 ◽  
Author(s):  
A. Dourani ◽  
M. Hamadanian ◽  
M. Haghgoo ◽  
M. R. Jahannama ◽  
H. Goudarzi
Keyword(s):  
Phase Separation ◽  
Carbon Nanotube ◽  
Electrical Properties ◽  
Carbon Aerogel ◽  
Multi Walled Carbon Nanotube

MWCNT/PAN aerogel composites were synthesized using the Thermal Induced Phase Separation (TIPS) procedure.

On the 3D Printability of Multi-Walled Carbon Nanotube/High Density Polyethylene Composites

2019 ◽  
Author(s):  
Felicia Stan ◽  
Nicoleta-Violeta Stanciu ◽  
Catalin Fetecau
Keyword(s):  
Carbon Nanotube ◽  
Electrical Properties ◽  
3D Printing ◽  
Shear Viscosity ◽  
High Density Polyethylene ◽  
High Density ◽  
High Shear ◽  
Shear Rates ◽  
Mechanical And Electrical Properties ◽  
Multi Walled Carbon Nanotube

Abstract This study focuses on 3D printing of multi-walled carbon nanotube/high density polyethylene (MWCNT/HDPE) composites. First, rheological properties of 0.1, 1, and 5 wt.% MWCNT/HDPE composites were investigated to estimate the 3D printability window. Second, filaments with 1.75 mm diameter were fabricated and subsequently extruded by a commercial 3D printer. Finally, the filaments and 3D printed parts were tested to correlate the rheological, mechanical, and electrical properties with processing parameters. Experimental results show that flow behavior of MWCNT/HDPE composites is a critical factor affecting the 3D printability. The shear viscosity exhibits good shear thinning behavior at high shear rates and significantly increases with increasing nanotube loading from 0.1 to 5 wt.%, at low shear rates. Reliable MWCNT/HDPE filaments were obtained with smooth surface finish and good mechanical and electrical properties. The 0.1 and 1 wt.% MWCNT/HDPE filaments exhibit very good printing characteristics. However, under the flow conditions of a standard 0.4-mm nozzle, 3D printing of 5 wt.% MWCNT/HDPE filament can be rather difficult primarily due to high shear viscosity and nozzle clogging. Thus, further investigation is needed to fully optimize the 3D printing of MWCNT/HDPE composites.

Experimental Research on the Conductive Property of MWCNT Nanopaper

2015 ◽  
Vol 727-728 ◽  
pp. 137-140
Author(s):  
A Ying Zhang
Keyword(s):  
Electrical Conductivity ◽  
Electrical Resistivity ◽  
Carbon Nanotube ◽  
Electrical Properties ◽  
The Self ◽  
Vacuum Deposition ◽  
Temperature Dependent ◽  
Polycarbonate Membrane ◽  
Multi Walled Carbon Nanotube ◽  
Conductive Property

This paper presents a systematic study of the nano-sized structure and temperature dependent electrical properties. A method of synthesizing the self-assembled multi-walled carbon nanotube (MWCNT) nanopaper on hydrophilic polycarbonate membrane was explored. The process is based on the very well-defined dispersion of nanotube and controlled pressure vacuum deposition procedure. The experiment results show that the ratio changes of MWCNT in the nanopaper could lead to the changes in the electrical conductivity efficiency of the nanopaper. Furthermore, the electrical resistivity of MWCNT nanopaper decreased as temperature increase.

Effects of tube diameter and state of dispersion on electrical properties of multi-walled carbon nanotube/natural rubber composites

Carbon ◽  
2012 ◽  
Vol 50 (10) ◽  
pp. 3965
Author(s):  
Tomoyoshi Sugiura ◽  
Toru Noguchi ◽  
Masatsugu Fujishige ◽  
Shigeki Inukai ◽  
Hiroyuki Ueki ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Electrical Properties ◽  
Natural Rubber ◽  
Tube Diameter ◽  
Rubber Composites ◽  
Multi Walled Carbon Nanotube ◽  
Natural Rubber Composites
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