Multi-walled carbon nanotubes functionalized with a ultrahigh fraction of carboxyl and hydroxyl groups by ultrasound-assisted oxidation

2015 ◽  
Vol 51 (7) ◽  
pp. 3513-3524 ◽  
Author(s):  
Shaolei Liang ◽  
Guangfen Li ◽  
Run Tian
Keyword(s):  
Carbon Nanotubes ◽  
Hydroxyl Groups ◽  
Multi Walled Carbon Nanotubes ◽  
Ultrasound Assisted ◽  
Walled Carbon Nanotubes

Study on Preparation and Properties of Hyperbranched Polyurethane/Multi-Walled Carbon Nanotubes Composites

2013 ◽  
Vol 716 ◽  
pp. 103-108
Author(s):  
Ning Sun ◽  
Jun Chao Wang ◽  
Chun Yun Feng ◽  
Yi Biao Li ◽  
Shao Hua Jiang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Hydroxyl Groups ◽  
Gravimetric Analysis ◽  
Test Results ◽  
Scanning Calorimetry ◽  
Hyperbranched Polyurethane ◽  
Multi Walled Carbon Nanotubes ◽  
Ft Ir ◽  
Walled Carbon Nanotubes ◽  
Better Than

With the Grafting to method, the hyperbranched polyurethane/multi-walled carbon nanotubes composites (MWNT-HBPU) was prepared. The reaction mechanism was covalently grafting hyperbranched polyurethane to multi-walled carbon nanotubes,through the reaction of the isocyanate groups of multi-walled carbon nanotubes (MWNT-NCO) and the hydroxyl groups of homemade hyperbranched polyurethane (HBPU). The structure and properties of the composites was studied by Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy (Raman), Thermal gravimetric analysis (TG) and Differential scanning calorimetry (DSC). The test results of FT-IR and TG showed that the prepared product was MWNT-HBPU; the DSC results demonstrated that the glass transition temperature of HBPU was significantly increased from 91.9°C to more than 99.7°C by the addition of MWNT-HBPU; the dispersion of the MWNT-HBPU was much better than the pure MWNT in solvents, such as N, N-dimethylformamide , Dimethyl sulfoxide etc.

scholarly journals Metamaterial Behavior of Polymer Nanocomposites Based on Polypropylene/Multi-Walled Carbon Nanotubes Fabricated by Means of Ultrasound-Assisted Extrusion

Materials ◽  
2016 ◽  
Vol 9 (11) ◽  
pp. 923 ◽  
Author(s):  
Juan Pérez-Medina ◽  
Miguel Waldo-Mendoza ◽  
Víctor Cruz-Delgado ◽  
Zoe Quiñones-Jurado ◽  
Pablo González-Morones ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Polymer Nanocomposites ◽  
Multi Walled Carbon Nanotubes ◽  
Ultrasound Assisted ◽  
Walled Carbon Nanotubes

Reinforcing Effects of Poly(D-Lactide)-g-Multiwall Carbon Nanotubes on Polylactide Nanocomposites

2015 ◽  
Vol 15 (10) ◽  
pp. 8086-8092 ◽  
Author(s):  
Jeong Hee Yang ◽  
Jae Yun Lee ◽  
In-Joo Chin
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Testing Machine ◽  
Multiwall Carbon Nanotubes ◽  
Hydroxyl Groups ◽  
Scanning Calorimetry ◽  
Transmission Electron ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Polylactide (PLA) nanocomposites with multi-walled carbon nanotubes (MWNTs) grafted with poly(L-lactide) or poly(D-lactide) were prepared by solution casting, and their thermal and mechanical properties were evaluated. MWNTs containing hydroxyl groups were treated by ring-opening polymerization of either L-lactide or D-lactide. Fourier transform infrared spectroscopy confirmed that the MWNT surfaces had been modified by the PLLA or PDLA chains. The thermal properties were measured by differential scanning calorimetry and thermogravimetric analysis. The mechanical properties were examined using a universal testing machine. The morphology of the fractured surfaces of the PLA nanocomposites was observed by scanning electron microscopy and transmission electron microscopy. PDLA-g-MWNTs were dispersed more uniformly compared to PLLA-g-MWNTs in the PLA matrix. The incorporation of PDLA-g-MWNTs greatly improved the tensile strength of the nanocomposites regardless of the contents. Thermal analysis revealed different characteristics at specific composites depending on the type of modification.

Facile synthesis of SnO2 nanoparticle intercalated unzipped multi-walled carbon nanotubes via an ultrasound-assisted route for symmetric supercapacitor devices

2020 ◽  
Vol 4 (10) ◽  
pp. 5120-5131
Author(s):  
Murugesan Krishnaveni ◽  
Jerry J. Wu ◽  
Sambandam Anandan ◽  
Muthupandian Ashokkumar
Keyword(s):  
Carbon Nanotubes ◽  
Facile Synthesis ◽  
Symmetric Supercapacitor ◽  
Sno2 Nanoparticle ◽  
Multi Walled Carbon Nanotubes ◽  
Ultrasound Assisted ◽  
Walled Carbon Nanotubes

SnO2 nanoparticle intercalated unzipped multi-walled carbon nanotubes via an ultrasound-assisted route for symmetric supercapacitor devices.

Influence of sample depletion on Z-scan measurements of hydroxyl groups modified multi-walled carbon nanotubes dispersions

2019 ◽  
Vol 6 (4) ◽  
pp. 045611
Author(s):  
Xiao-Liang Zhang ◽  
Zhi-Bo Liu ◽  
Xiao-Qing Yan ◽  
Xiao-Chun Li ◽  
Jian-Guo Tian
Keyword(s):  
Carbon Nanotubes ◽  
Hydroxyl Groups ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Fabrication of Fe3O4 Nanoparticles Decorated Multi-Walled Carbon Nanotubes Magnetic Nanocomposite

2014 ◽  
Vol 716-717 ◽  
pp. 41-43
Author(s):  
Ling Ling Chen
Keyword(s):  
Carbon Nanotubes ◽  
Chemical Reaction ◽  
Magnetite Nanoparticles ◽  
Magnetic Nanocomposite ◽  
Carboxyl Groups ◽  
Hydroxyl Groups ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Functionalized Mwcnts

In this paper, Fe3O4magnetite nanoparticles decorated multi-walled carbon nanotubes (MWCNTs-Fe3O4) nanocomposite was successfully prepared. Firstly, carboxyl-functionalized MWCNTs were obtained after acid oxidization. Then, Fe3O4 nanoparticles were attached onto the surface of MWCNTs through chemical reaction between hydroxyl groups on the surface of Fe3O4 nanoparticles and carboxyl groups on the surface of MWCNTs.

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