Combined effect of multiwalled carbon nanotubes, graphene nanoplatelets, and aluminum trihydride on the thermal stability of epoxy composites

2021 ◽  
Author(s):  
Madhu B. M. ◽  
Rashmi ◽  
Sailaja R. R. N. ◽  
Sundara Rajan J
Keyword(s):  
Carbon Nanotubes ◽  
Thermal Stability ◽  
Multiwalled Carbon Nanotubes ◽  
Graphene Nanoplatelets ◽  
Combined Effect ◽  
Epoxy Composites ◽  
Multiwalled Carbon ◽  
Thermal Stability Of

Towards Long-Term Thermal Stability of Dye-Sensitized Solar Cells Using Multiwalled Carbon Nanotubes

ChemPlusChem ◽  
2018 ◽  
Vol 83 (7) ◽  
pp. 682-690 ◽  
Author(s):  
Mahyar Mohammadnezhad ◽  
Gurpreet Singh Selopal ◽  
Zhiming M. Wang ◽  
Barry Stansfield ◽  
Haiguang Zhao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Thermal Stability ◽  
Solar Cells ◽  
Multiwalled Carbon Nanotubes ◽  
Dye Sensitized Solar Cells ◽  
Multiwalled Carbon ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Thermal Stability Of

An effective and novel approach for enhancement of the oxidative thermal stability of multiwalled carbon nanotubes loaded polymer blend

2019 ◽  
Vol 33 (11) ◽  
pp. 1499-1517
Author(s):  
Mohammad Abu-Abdeen ◽  
Osama Saber ◽  
Javed Mazher ◽  
Mohamed M Ahmed ◽  
Mohamed Gouda
Keyword(s):  
Carbon Nanotubes ◽  
Thermal Stability ◽  
Thermal Treatment ◽  
Multiwalled Carbon Nanotubes ◽  
Polymer Matrix ◽  
Gravimetric Analysis ◽  
Multiwalled Carbon ◽  
Ac Electrical Conductivity ◽  
Wide Range ◽  
Thermal Stability Of

Multiwalled carbon nanotubes (MWCNTs) have wide range of applications. Commercial MWCNTs have impurities, disorder and entangled structure, which limit its applications. In this respect, novel, low-energy consumption and friendly technique was applied to enhance its structure. The technique is operated during isometric process inside autoclave and based on thermal treatment of MWCNTs in the presence of solvent and pressure. It was used to enhance the oxidative thermal stability of MWCNTs. Thermal gravimetric analysis results showed an increase in onset temperature, activation energy of decomposition, and the temperature required to loss 75, 50, and 33 wt% as the treating temperature increased. Raman spectroscopy tests showed a decrease in the degree of disorder from 1.29 for untreated samples to 0.45 for samples treated at 250°C. The electrical resistivity of MWCNTs was increased from 0.33 Ω.cm for untreated samples to 0.54 Ω cm for 250°C treated samples. Advantages of thermal treatment of MWCNTs using this technique appeared in the presence of a percolation behavior for the AC electrical conductivity when a polymer matrix was loaded with it with a threshold percolation concentration of 0.7 wt%. Furthermore, Cole–Cole Z semicircles as well as Argand plots of the electric modulus appeared for polymer matrix loaded with thermally treated MWCNTs beyond the threshold percolation concentration.

scholarly journals Cover Feature: Towards Long-Term Thermal Stability of Dye-Sensitized Solar Cells Using Multiwalled Carbon Nanotubes (ChemPlusChem 7/2018)

ChemPlusChem ◽  
2018 ◽  
Vol 83 (7) ◽  
pp. 546-546
Author(s):  
Mahyar Mohammadnezhad ◽  
Gurpreet Singh Selopal ◽  
Zhiming M. Wang ◽  
Barry Stansfield ◽  
Haiguang Zhao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Thermal Stability ◽  
Solar Cells ◽  
Multiwalled Carbon Nanotubes ◽  
Dye Sensitized Solar Cells ◽  
Multiwalled Carbon ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Thermal Stability Of

Thermal Stability of Zirconia-coated Multiwalled Carbon Nanotubes

2010 ◽  
Vol 60 (3) ◽  
pp. 337-342 ◽  
Author(s):  
R. Manivannan ◽  
Alex Daniel ◽  
I. Srikanth ◽  
Anil Kumar ◽  
Rajdeep Sarkar ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Thermal Stability ◽  
Multiwalled Carbon Nanotubes ◽  
Multiwalled Carbon ◽  
Thermal Stability Of

scholarly journals Incorporation of Multiwalled Carbon Nanotubes and Graphene Nanoplatelets on the Morphology and Properties of Polyethylene Terephthalate Nanocomposites

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Nuzul Fatihin Izatil Azman ◽  
Safiyyah Aliya Zuhairi ◽  
Chantara Thevy Ratnam ◽  
Yazid Yaakob ◽  
Md Shuhazlly Mamat
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Polyethylene Terephthalate ◽  
Nucleating Agent ◽  
Graphene Nanoplatelets ◽  
Heat Sinks ◽  
X Ray Diffraction ◽  
Multiwalled Carbon ◽  
Melt Compounding ◽  
Thermal Stability Of

In this work, the interaction effect between polyethylene terephthalate (PET) and multiwalled carbon nanotubes (MWCNTs) and graphene nanoplatelets (GNPs) on the morphology and thermal properties of the nanocomposites have been investigated. PET nanocomposites with the incorporation of 0.1 wt% and 0.5 wt% of MWCNTs and GNPs were prepared by the melt compounding and injection moulding method. The presence of MWCNTs and GNPs in the PET matrix was confirmed by the X-ray diffraction (XRD) technique. MWCNTs and GNPs acted as a nucleating agent which enhanced the crystallization of PET/MWCNT/GNP nanocomposites at both weight percentages. The result obtained from thermogravimetric analysis (TGA) showed that the incorporation of MWCNTs and GNPs into pure PET improved the thermal stability of the nanocomposites. The nanofillers served as efficient heat sinks which prevent thermal degradation of PET. From the fractured cross-section morphology in field emission scanning electron microscope (FESEM), the nanofillers displayed good dispersion in the PET matrix. Better dispersion distribution found in 0.1 wt% PET/MWCNTs/GNPs nanocomposites compared to 0.5 wt% PET/MWCNTs/GNPs nanocomposites which favor less mechanical and physical failures like crack, delamination, and agglomeration.

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