Electrical percolation behavior of carbon fiber and carbon nanotube polymer composite foams: Experimental and computational investigations

2015 ◽  
Vol 132 (42) ◽  
pp. n/a-n/a ◽  
Author(s):  
Alireza Foroozani Behbahani ◽  
Ghodratollah Hashemi Motlagh ◽  
Morteza Ziaee ◽  
Goolia Nikravan
Keyword(s):  
Carbon Nanotube ◽  
Carbon Fiber ◽  
Polymer Composite ◽  
Electrical Percolation ◽  
Composite Foams ◽  
Percolation Behavior

Mechanical properties of carbon nanotube/carbon fiber reinforced thermoplastic polymer composite

2015 ◽  
Vol 38 (9) ◽  
pp. 2001-2008 ◽  
Author(s):  
Wenbo Liu ◽  
Lizhi Li ◽  
Shu Zhang ◽  
Fan Yang ◽  
Rongguo Wang
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotube ◽  
Carbon Fiber ◽  
Polymer Composite ◽  
Thermoplastic Polymer ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced

scholarly journals Influence of Carbon Nanotube-Pretreatment on the Properties of Polydimethylsiloxane/Carbon Nanotube-Nanocomposites

Polymers ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1355
Author(s):  
Astrid Diekmann ◽  
Marvin C. V. Omelan ◽  
Ulrich Giese
Keyword(s):  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Mechanical Performance ◽  
Softening Effect ◽  
Electrical Percolation ◽  
Optimum Parameters ◽  
Lauryl Ether ◽  
Solvent Residues ◽  
Electrical Percolation Threshold ◽  
Filler Dispersion

Incorporating nanofillers into elastomers leads to composites with an enormous potential regarding their properties. Unfortunately, nanofillers tend to form agglomerates inhibiting adequate filler dispersion. Therefore, different carbon nanotube (CNT) pretreatment methods were analyzed in this study to enhance the filler dispersion in polydimethylsiloxane (PDMS)/CNT-composites. By pre-dispersing CNTs in solvents an increase in electrical conductivity could be observed within the sequence of tetrahydrofuran (THF) > acetone > chloroform. Optimization of the pre-dispersion step results in an AC conductivity of 3.2 × 10−4 S/cm at 1 Hz and 0.5 wt.% of CNTs and the electrical percolation threshold is decreased to 0.1 wt.% of CNTs. Optimum parameters imply the use of an ultrasonic finger for 60 min in THF. However, solvent residues cause a softening effect deteriorating the mechanical performance of these composites. Concerning the pretreatment of CNTs by physical functionalization, the use of surfactants (sodium dodecylbenzenesulfonate (SDBS) and polyoxyethylene lauryl ether (“Brij35”)) leads to no improvement, neither in electrical conductivity nor in mechanical properties. Chemical functionalization enhances the compatibility of PDMS and CNT but damages the carbon nanotubes due to the oxidation process so that the improvement in conductivity and reinforcement is superimposed by the CNT damage even for mild oxidation conditions.

scholarly journals In situ formation of a carbon nanotube buckypaper for improving the interlaminar properties of carbon fiber composites

2021 ◽  
Vol 202 ◽  
pp. 109535
Author(s):  
Yadong Wu ◽  
Xiuyan Cheng ◽  
Shaoyun Chen ◽  
Bo Qu ◽  
Rui Wang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Carbon Fiber ◽  
Fiber Composites ◽  
Carbon Fiber Composites ◽  
In Situ Formation

Bioinspired neuromorphic module based on carbon nanotube/C60/polymer composite

2015 ◽  
Vol 49 (15) ◽  
pp. 1809-1822 ◽  
Author(s):  
Kyunghyun Kim ◽  
Andrew Tudor ◽  
Chia-Ling Chen ◽  
Dongwon Lee ◽  
Alex M Shen ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Polymer Composite
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