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Thermal analysis of polyethylene + X% carbon nanotubes.

Lozovyi F, Ivanenko K, Nedilko S, Revo S, Hamamda S - Nanoscale Res Lett (2016)

Bottom Line: Dilatometry data showed that nanocomposites exhibit anisotropic behavior, and intensity of the anisotropy depends on the MWCNT concentration.The shapes of the dilatometric curves of the nanocomposites under study differ significantly for the radial and longitudinal directions of the samples.The IR spectra demonstrate improvement of the crystallinity of the samples as the content in MWCNTs rises.

View Article: PubMed Central - PubMed

Affiliation: R&D Laboratory of Metal and Ceramics Physics, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601, Kyiv, Ukraine.

ABSTRACT
The aim of this research is to study the influence of the multi-walled carbon nanotubes (MWCNTs) on the thermomechanical and structural properties of high-density polyethylene. Several, complementary experimental techniques were used, namely, dilatometry, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), Raman spectroscopy, and infrared (IR) spectroscopy. Dilatometry data showed that nanocomposites exhibit anisotropic behavior, and intensity of the anisotropy depends on the MWCNT concentration. The shapes of the dilatometric curves of the nanocomposites under study differ significantly for the radial and longitudinal directions of the samples. DSC results show that MWCNTs weekly influence calorimetry data, while Raman spectra show that the I D/I G ratio decreases when MWCNT concentration increases. The IR spectra demonstrate improvement of the crystallinity of the samples as the content in MWCNTs rises.

No MeSH data available.


Relative dimensional variation (ΔL/L) of polyethylene containing 0, 0.5, 1, and 2.5 % multi-walled carbon nanotubes along the longitudinal direction
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Fig4: Relative dimensional variation (ΔL/L) of polyethylene containing 0, 0.5, 1, and 2.5 % multi-walled carbon nanotubes along the longitudinal direction

Mentions: Figures 3 and 4 show the relative variation in length ΔL/L of the polyethylene containing 0, 0.5, 1, and 2.5 % MWCNTs measured along the radial and longitudinal directions, respectively. The dimensional variation of the four samples depends heavily on the direction of measurement.Fig. 3


Thermal analysis of polyethylene + X% carbon nanotubes.

Lozovyi F, Ivanenko K, Nedilko S, Revo S, Hamamda S - Nanoscale Res Lett (2016)

Relative dimensional variation (ΔL/L) of polyethylene containing 0, 0.5, 1, and 2.5 % multi-walled carbon nanotubes along the longitudinal direction
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4764605&req=5

Fig4: Relative dimensional variation (ΔL/L) of polyethylene containing 0, 0.5, 1, and 2.5 % multi-walled carbon nanotubes along the longitudinal direction
Mentions: Figures 3 and 4 show the relative variation in length ΔL/L of the polyethylene containing 0, 0.5, 1, and 2.5 % MWCNTs measured along the radial and longitudinal directions, respectively. The dimensional variation of the four samples depends heavily on the direction of measurement.Fig. 3

Bottom Line: Dilatometry data showed that nanocomposites exhibit anisotropic behavior, and intensity of the anisotropy depends on the MWCNT concentration.The shapes of the dilatometric curves of the nanocomposites under study differ significantly for the radial and longitudinal directions of the samples.The IR spectra demonstrate improvement of the crystallinity of the samples as the content in MWCNTs rises.

View Article: PubMed Central - PubMed

Affiliation: R&D Laboratory of Metal and Ceramics Physics, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601, Kyiv, Ukraine.

ABSTRACT
The aim of this research is to study the influence of the multi-walled carbon nanotubes (MWCNTs) on the thermomechanical and structural properties of high-density polyethylene. Several, complementary experimental techniques were used, namely, dilatometry, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), Raman spectroscopy, and infrared (IR) spectroscopy. Dilatometry data showed that nanocomposites exhibit anisotropic behavior, and intensity of the anisotropy depends on the MWCNT concentration. The shapes of the dilatometric curves of the nanocomposites under study differ significantly for the radial and longitudinal directions of the samples. DSC results show that MWCNTs weekly influence calorimetry data, while Raman spectra show that the I D/I G ratio decreases when MWCNT concentration increases. The IR spectra demonstrate improvement of the crystallinity of the samples as the content in MWCNTs rises.

No MeSH data available.