scholarly journals Synthesis and characterization studies of high-density polyethylene -based nanocomposites with enhanced surface energy, tribological, and electrical properties

2021 ◽  
Vol 98 ◽  
pp. 107193
Author(s):  
Sameh Dabees ◽  
Abou Bakr Elshalakany ◽  
Vineet Tirth ◽  
Bahaa M. Kamel
Keyword(s):  
Electrical Properties ◽  
Surface Energy ◽  
High Density Polyethylene ◽  
High Density ◽  
Synthesis And Characterization ◽  
Characterization Studies ◽  
Enhanced Surface

The electrical properties of schungite-containing compositions based on polypropylene and high-density polyethylene

2007 ◽  
Vol 81 (11) ◽  
pp. 1863-1869
Author(s):  
S. S. Rozhkov ◽  
N. F. Kedrina ◽  
V. A. Timofeeva ◽  
I. A. Chmutin ◽  
N. G. Ryvkina ◽  
...  
Keyword(s):  
Electrical Properties ◽  
High Density Polyethylene ◽  
High Density

High-density polyethylene/graphene oxide nanocomposites prepared via in situ polymerization: Morphology, thermal, and electrical properties

2018 ◽  
Vol 16 ◽  
pp. 232-241 ◽  
Author(s):  
Antonio Cruz-Aguilar ◽  
Dámaso Navarro-Rodríguez ◽  
Odilia Pérez-Camacho ◽  
Salvador Fernández-Tavizón ◽  
Carlos Alberto Gallardo-Vega ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrical Properties ◽  
High Density Polyethylene ◽  
In Situ Polymerization ◽  
High Density ◽  
Thermal And Electrical Properties

On the 3D Printability of Multi-Walled Carbon Nanotube/High Density Polyethylene Composites

2019 ◽  
Author(s):  
Felicia Stan ◽  
Nicoleta-Violeta Stanciu ◽  
Catalin Fetecau
Keyword(s):  
Carbon Nanotube ◽  
Electrical Properties ◽  
3D Printing ◽  
Shear Viscosity ◽  
High Density Polyethylene ◽  
High Density ◽  
High Shear ◽  
Shear Rates ◽  
Mechanical And Electrical Properties ◽  
Multi Walled Carbon Nanotube

Abstract This study focuses on 3D printing of multi-walled carbon nanotube/high density polyethylene (MWCNT/HDPE) composites. First, rheological properties of 0.1, 1, and 5 wt.% MWCNT/HDPE composites were investigated to estimate the 3D printability window. Second, filaments with 1.75 mm diameter were fabricated and subsequently extruded by a commercial 3D printer. Finally, the filaments and 3D printed parts were tested to correlate the rheological, mechanical, and electrical properties with processing parameters. Experimental results show that flow behavior of MWCNT/HDPE composites is a critical factor affecting the 3D printability. The shear viscosity exhibits good shear thinning behavior at high shear rates and significantly increases with increasing nanotube loading from 0.1 to 5 wt.%, at low shear rates. Reliable MWCNT/HDPE filaments were obtained with smooth surface finish and good mechanical and electrical properties. The 0.1 and 1 wt.% MWCNT/HDPE filaments exhibit very good printing characteristics. However, under the flow conditions of a standard 0.4-mm nozzle, 3D printing of 5 wt.% MWCNT/HDPE filament can be rather difficult primarily due to high shear viscosity and nozzle clogging. Thus, further investigation is needed to fully optimize the 3D printing of MWCNT/HDPE composites.

Synthesis and Characterization of Porous Nano-Crystalline Barium Hexaferrite

2012 ◽  
Vol 622-623 ◽  
pp. 860-863
Author(s):  
S. Hamidizadeh ◽  
A. Ataie ◽  
Amin Nozari
Keyword(s):  
High Density Polyethylene ◽  
Single Phase ◽  
Barium Hexaferrite ◽  
Weight Percent ◽  
High Energy ◽  
High Density ◽  
Synthesis And Characterization ◽  
Polyethylene Composite ◽  
Nano Crystalline

Barium hexaferrite/high density polyethylene composite was prepared from synthesized barium hexaferrite as matrix with 0, 10, 20, 30, 40 wt.% of high density polyethylene via a high energy planetary ball milling for 10 h. The milling products were isostatically pressed and finally sintered at 1250 °C for 1 h. Effect of HDPE content on morphology of the products were investigated using scanning electron microscope (SEM). Vibrating samplemagnetometer (VSM) analysis of single phase BaFe12O19 indicates saturation magnetization and coercivity of 52 emu/g and 4300 Oe, respectively. Visually, as the weight percent of the HDPE increases, more porous structure was observed. Moreover, the density of the sintered sampleslinearly decreased from 4.16 to 1.41 g/cm3 by increasing the amount of HDPE from 0 to 40 wt.%.

scholarly journals Effect of cooling rate after polymer melting on electrical properties of high-density polyethylene/Ni composites

2010 ◽  
Vol 42 (7) ◽  
pp. 587-591 ◽  
Author(s):  
Akihiko Kono ◽  
Naoko Miyakawa ◽  
Satoshi Kawadai ◽  
Yousuke Goto ◽  
Takeshi Maruoka ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Cooling Rate ◽  
High Density Polyethylene ◽  
High Density ◽  
Polymer Melting

The Influence of Carbon Nanotubes and Reprocessing on the Morphology and Properties of High-Density Polyethylene/Carbon Nanotube Composites

2021 ◽  
pp. 1-31
Author(s):  
Felicia Stan ◽  
Ionut-Laurentiu Sandu ◽  
Adriana-Madalina Constantinescu ◽  
Nicoleta-Violeta Stanciu ◽  
Catalin Fetecau
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Electrical Properties ◽  
Injection Molding ◽  
High Density Polyethylene ◽  
High Density ◽  
Mechanical Degradation ◽  
End User ◽  
Mechanical Recycling ◽  
Mechanical And Electrical Properties

Abstract This study investigates virgin and recycled high-density polyethylene/multi-walled carbon nanotube (HDPE/MWCNT) composites using thermo-physical and mechanical characterization techniques to generate knowledge and understand recyclability of these composites. Firstly, virgin samples with 0.1–5 wt.% of MWCNTs were prepared by injection molding. Then, the HDPE/MWCNT composite waste was mechanically recycled and consecutively reprocessed by injection molding. The experimental results show that the degradation process of the end-user properties (mechanical and electrical properties) depends on the MWCNT wt.%. The higher the carbon nanotube loading, the higher the degradation of the end-user properties. The HDPE/MWCNT composites appear to be resistant to degradation at carbon nanotube loadings below the percolation threshold (which is located around 3 wt.%). In contrast, the recycled HDPE/MWCNT composites with 5 wt.% showed a reduction in viscosity, mechanical and electrical properties with recycling. After four reprocessing cycles, degradation in the Young modulus (−35%), tensile strength (−25%), elongation at break (−60%) and electrical conductivity (−2 orders of magnitude) of the HDPE/MWCNT composite with 5 wt.% was observed as compared with the virgin composite. From an industrial perspective, it is feasible to recycle HDPE/MWCNT composite waste by mechanical recycling and use it to manufacture products with favorable mechanical properties, covering insulating, antistatic and semiconducting ranges depending on the MWCNT loading, owing to the protective effect of carbon nanotubes against thermo-mechanical degradation.

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