scholarly journals High-Density Polyethylene Based on Exfoliated Graphite Nanoplatelets/Nano-Magnesium Oxide: An Investigation of Thermal Properties and Morphology

2019 ◽  
Vol 10 (03) ◽  
pp. 159-169
Author(s):  
A. I. Alateyah
Keyword(s):  
Thermal Properties ◽  
Magnesium Oxide ◽  
High Density Polyethylene ◽  
High Density ◽  
Exfoliated Graphite ◽  
Graphite Nanoplatelets ◽  
Exfoliated Graphite Nanoplatelets

scholarly journals Nano indentation and morphology study of the polypropylene and high density polyethylene nanocomposites based on exfoliated graphite Nano platelets/Nano- magnesium oxide

2018 ◽  
Vol 7 (2) ◽  
pp. 891
Author(s):  
A I. Alateyah
Keyword(s):  
High Density Polyethylene ◽  
High Density ◽  
Exfoliated Graphite ◽  
Dramatic Improvement ◽  
Graphite Nanoplatelets ◽  
Molding Machine ◽  
Reduced Modulus ◽  
The Matrix ◽  
Exfoliated Graphite Nanoplatelets ◽  
Xrd Patterns

Polypropylene (PP) and high density polyethylene (HDPE) were successfully fabricated using injection molding machine, by the addition of exfoliated graphite nanoplatelets composites reinforced with 2wt.t% of nano-magnesia. The nanoindentation properties and microstructure of the composites were investigated, in the current study. The XRD patterns of both composites showed the peaks of xGnP and n-MgO, where their intensity became stronger with increasing the concentration of xGnP added into both polymers. In addition, the SEM micrographs revealed a good dispersion of fillers within the matrix. The nanoindentation properties of both nanocomposites revealed better properties with compared to the virgin polymers. The PP nanocomposites showed an improvement of hardness up to 22 % and 118% with the compositions of 1xGnP/2n-MgO and 5xGnP/2n-MgO respectively. In addition, HDPE/1xGnP/2n-MgO and HDPE/5xGnP/2n-MgO represented a dramatic improvement of hardness up to 146% and 341% respectively with compared to virgin polymer. In addition, the enhancements in reduced modulus of PP and HDPE were proportional to the xGNP loading.  

scholarly journals Thermal properties and morphology of polypropylene based on exfoliated graphite nanoplatelets/nanomagnesium oxide

2018 ◽  
Vol 8 (1) ◽  
pp. 432-439 ◽  
Author(s):  
A. I. Alateyah
Keyword(s):  
Thermal Stability ◽  
Thermal Properties ◽  
Morphological Structure ◽  
Exfoliated Graphite ◽  
Graphite Nanoplatelets ◽  
The Matrix ◽  
Moulding Machine ◽  
Exfoliated Graphite Nanoplatelets ◽  
Polypropylene Matrix ◽  
Xrd Patterns

Abstract Polypropylene/exfoliated graphite nanoplatelet (xGnP) composites reinforced with 2 wt.% nano-magnesia (n-MgO) have been successfully fabricated using an injection moulding machine. In the present study, the thermal properties and morphological structure of the composites were investigated. The XRD patterns of the composites showed xGnP and n-MgO peaks, and the intensity of the xGnP peaks increased with increased concentration in a polypropylene matrix. In addition, the SEM micrographs revealed a good dispersion of filler within the matrix. The nanocomposites showed better thermal stability than the pristine polymer. The improvement in onset temperature compared to virgin PP was found to be 3.6% for 100 wt.% PP, 4% for PP/1xGnP/2n-MgO, 5.5% for PP/2.5xGnP/2n-MgO, and 5.9% for PP/5xGnP/2n-MgO, PP/10xGnP/2n-MgO. In contrast, the crystallinity was reduced by the addition of fillers.

Rheological and thermal properties of exfoliated graphite nanoplatelets-filled impact modified polypropylene nanocomposites

2017 ◽  
Vol 39 (S3) ◽  
pp. E1512-E1519 ◽  
Author(s):  
Esra Erbas Kiziltas ◽  
Alex J. Duguay ◽  
Alper Kiziltas ◽  
Behzad Nazari ◽  
Jacques W. Nader ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Exfoliated Graphite ◽  
Graphite Nanoplatelets ◽  
Polypropylene Nanocomposites ◽  
Exfoliated Graphite Nanoplatelets
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