Effective properties of a novel composite reinforced with short carbon fibers and radially aligned carbon nanotubes

2012 ◽  
Vol 53 ◽  
pp. 47-60 ◽  
Author(s):  
S.I. Kundalwal ◽  
M.C. Ray
2018 ◽  
Vol 18 (7) ◽  
pp. 4940-4952 ◽  
Author(s):  
Luo Zhanjun ◽  
Chen Hui ◽  
Wu Jing ◽  
Xia Xiaohong ◽  
Liu Hongbo ◽  
...  

2014 ◽  
Vol 802 ◽  
pp. 192-196 ◽  
Author(s):  
Eduardo Saito ◽  
Vagner Eduardo Caetano ◽  
Erica Freire Antunes ◽  
Anderson Oliveira Lobo ◽  
Fernanda Roberto Marciano ◽  
...  

Carbon fibers have been studied for electrochemical applications. Recently, carbon nanotubes present a wide potential uses in electric, mechanic, electrochemical and materials science field. At present study, vertically aligned carbon nanotubes were produced over carbon fibers. The process occurs catalytically by chemical vapor deposition (CVD) using mixture with camphor and ferrocene. After that, the VACNT/CF composite are treated by oxygen plasma for oxygen functionalization. Prior the electrochemical analysis, CNT/Carbon fibers are treated by hydrochloric acid to remove residual catalyst. The electrodes were tested in a usual electrolyte (with H2SO4 0.5M) in a conventional electrochemical cell. The specific capacitance was tested in a separate device. The configuration of carbon fibers and VACNT presents a high potential application for electro analytical application and energy storage.


2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Szatkowski Piotr ◽  
Pielichowska Kinga ◽  
Blazewicz Stanislaw

Self-healing polyurethanes (PUs) were synthesized as a matrix of nanocomposites containing two fibrous carbon components, i.e., functionalized carbon nanotubes (CNF-OH) and short carbon fibers (CF). Two types of PUs differing in the content of flexible chain segments (40% and 50%) were used. Changes in mechanical strength were analyzed to assess the ability to self-healing of PU-based matrix nanocomposites with experimentally introduced damage in the form of an incision. The healing process was activated by heating the damaged samples at 60°C, for 30 minutes. The addition of CNT-OH and CF caused a slight reduction in the self-healing ability of the nanocomposites as compared to the neat PUs. After heating to 60°C, the nanocomposites self-healed up to 72% of the initial strength of the undamaged samples. The introduction of fibrous components to the polymer matrix improved the thermal conductivity of nanocomposites and facilitated heat transfer from the environment to the interior of the samples, necessary to initiate self-healing. Low content of carbon components in the PU matrix, i.e., 3 wt% of CF and 2 wt% of CNF-OH increased the total work up to fracture of samples after healing by about 53%.


2016 ◽  
Vol 2 (3) ◽  
pp. 47-57 ◽  
Author(s):  
S.S. Pesetskii ◽  
S.P. Bogdanovich ◽  
V.V. Dubrovskii ◽  
T.M. Sodyleva ◽  
V.N. Aderikha ◽  
...  

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