High strength toughened epoxy nanocomposite based on poly(ether sulfone)-grafted multi-walled carbon nanotube

2015 ◽  
Vol 27 (1) ◽  
pp. 82-89 ◽  
Author(s):  
Raneesh Konnola ◽  
C. P. Reghunadhan Nair ◽  
Kuruvilla Joseph
Keyword(s):  
Carbon Nanotube ◽  
High Strength ◽  
Epoxy Nanocomposite ◽  
Toughened Epoxy ◽  
Multi Walled Carbon Nanotube

Polymer Grafted Multi-Walled Carbon Nanotube as a Novel Toughening Agent for Epoxy System

2015 ◽  
Vol 830-831 ◽  
pp. 577-580
Author(s):  
Raneesh Konnola ◽  
Kuruvilla Joseph
Keyword(s):  
Fracture Toughness ◽  
Raman Spectroscopy ◽  
Fourier Transform ◽  
Carbon Nanotube ◽  
Epoxy System ◽  
Epoxy Nanocomposite ◽  
Grafting Reaction ◽  
Transmission Electron ◽  
Multi Walled Carbon Nanotube ◽  
Toughening Agent

Hydroxyl terminated poly (ethersulfone) was used to modify the surface of multi-walled carbon nanotube (MWCNT). The grafting reaction was confirmed by different characterization techniques such as Fourier Transform Infrared Spectroscopy, Raman Spectroscopy and Transmission Electron Microscope. Epoxy nanocomposites using the modified fillers were prepared. The fracture toughness of the system was examined and compared with MWCNT-epoxy nanocomposite.

scholarly journals High-Energy Impact Behaviors of Concrete Structures Strengthened with Multi-Walled Carbon Nanotube Composites

2020 ◽  
Vol 20 (2) ◽  
pp. 169-175
Author(s):  
Hyung-Bae Choi ◽  
Sang-Youl Lee
Keyword(s):  
Carbon Nanotube ◽  
High Performance ◽  
Three Dimensional ◽  
Concrete Structures ◽  
High Strength ◽  
High Energy ◽  
Reinforced Concrete Structure ◽  
Energy Impact ◽  
Multi Walled Carbon Nanotube ◽  
The Impact

This study analyzed high-energy impact behaviors of concrete structures strengthened with multi-walled carbon nanotube (MWCNT) composites. The proposed multi-walled carbon nanotubes demonstrated excellent mechanical properties such as high stiffness, high strength, and improved elongation. These distinctive properties allow the use of the product in several high-performance applications. Using a multi-scale analysis, we investigated the impact mechanism of an MWCNT-reinforced concrete structure using various parameters. The parametric studies focused on the various impact effects on structural performance. In addition, a three-dimensional simulation was carried out for the verification of our experimental results.

scholarly journals Photoluminescent Properties of Hydroxyapatite and Hydroxyapatite/Multi-Walled Carbon Nanotube Composites

Crystals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 832
Author(s):  
Edna X. Figueroa-Rosales ◽  
Javier Martínez-Juárez ◽  
Esmeralda García-Díaz ◽  
Daniel Hernández-Cruz ◽  
Sergio A. Sabinas-Hernández ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Hexagonal Phase ◽  
Precipitation Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
Multi Walled Carbon Nanotube ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites ◽  
Co Precipitation ◽  
Functionalized Mwcnts

Hydroxyapatite (HAp) and hydroxyapatite/multi-walled carbon nanotube (MWCNT) composites were obtained by the co-precipitation method, followed by ultrasound-assisted and microwave radiation and thermal treatment at 250 °C. X-ray diffraction (XRD) confirmed the presence of a hexagonal phase in all the samples, while Fourier-transform infrared (FTIR) spectroscopy elucidated the interaction between HAp and MWCNTs. The photoluminescent technique revealed that HAp and the composite with non-functionalized MWCNTs present a blue luminescence, while the composite with functionalized MWCNTs, under UV-vis radiation shows an intense white emission. These findings allowed presentation of a proposal for the use of HAp and HAp with functionalized MWCNTs as potential materials for optoelectronic and medical applications.

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