Study on the Tensile Strength and Micromechanical Analysis of Alfa Fibers Reinforced High Density Polyethylene Composites

2019 ◽  
Vol 20 (3) ◽  
pp. 602-610 ◽  
Author(s):  
Sahar Salem ◽  
Helena Oliver-Ortega ◽  
Francesc X. Espinach ◽  
Karim Ben Hamed ◽  
Nizar Nasri ◽  
...  
Keyword(s):  
Tensile Strength ◽  
High Density Polyethylene ◽  
High Density ◽  
Micromechanical Analysis ◽  
Alfa Fibers ◽  
Polyethylene Composites

Investigations into the mechanical, morphological and thermal analyses of friction stir processing of high-density polyethylene composites

2016 ◽  
Vol 232 (7) ◽  
pp. 1193-1200 ◽  
Author(s):  
Jicheng Gao ◽  
Chao Li ◽  
Yifu Shen
Keyword(s):  
Tensile Strength ◽  
Friction Stir Processing ◽  
High Density Polyethylene ◽  
Thermal Analyses ◽  
Experimental Tests ◽  
Traverse Speed ◽  
High Density ◽  
Scanning Calorimetry ◽  
Friction Stir ◽  
Polyethylene Composites

The aim of this work is to fabricate the high-density polyethylene–copper composites by submerged friction stir processing at different traverse speeds. The scanning electron microscopy is used to analyze the distribution of microstructure and particles. The experimental results indicated that the macrostructure morphology, microstructure and tensile strength vary depending on the traverse speed. Compared with the pure high-density polyethylene, Cu-filled polymer composites showed lower tensile strength and higher microhardness. The maximal values of the tensile strength and microhardness were achieved at traverse speeds of 30 and 15 mm/min, respectively. The thermal properties of Cu-filled high-density polyethylene composites were studied by differential scanning calorimetry. The crystalline content of the composites was decreased due to the addition of copper. From the experimental tests, it can be concluded that submerged fiction stir processing has a great potential for producing polymer–metal composites.

Effects of extrusion parameters on tensile strength of polybenzimidazole fiber-reinforced high density polyethylene composites

2016 ◽  
Vol 36 (2) ◽  
pp. 113-118 ◽  
Author(s):  
Arfat Anis ◽  
Shan Faiz ◽  
Saeed M. Al-Zahrani
Keyword(s):  
Tensile Strength ◽  
High Density Polyethylene ◽  
Testing Machine ◽  
High Density ◽  
Fiber Reinforced ◽  
Screw Speed ◽  
Fiber Loading ◽  
Maximum Tensile Strength ◽  
Twin Screw ◽  
Polyethylene Composites

Abstract The objectives of this study were to examine the effects of fiber content and extrusion parameters on polybenzimidazole (PBI) fiber-reinforced polyethylene composites and to determine the optimum values for the tensile strength. The PBI fiber was physically mixed with high density polyethylene (HDPE) and then extruded through a twin screw extruder. The extrusion parameters were studied at different levels, barrel temperatures at 240°C, 250°C and 260°C and screw speeds at 12 rpm, 15 rpm and 18 rpm. The tensile strength was measured using a universal testing machine. A response surface experimental design using Design-Expert was applied to investigate the effect of fiber loading and extrusion parameters (barrel temperature, screw speed) on tensile properties of the resulting composite and consequently analyzing the optimized value for these parameters to yield maximum tensile strength. The analysis predicted a linear model which suggests that in order to achieve maximum tensile strength the screw speed should be 18 rpm, the barrel temperature at 240°C and at a fiber loading of 2%.

Studies on ?-Fe2O3-high-density polyethylene composites and their additives

2004 ◽  
Vol 92 (3) ◽  
pp. 1527-1533 ◽  
Author(s):  
B. Govindaraj ◽  
N. V. Sastry ◽  
A. Venkataraman
Keyword(s):  
High Density Polyethylene ◽  
High Density ◽  
Polyethylene Composites
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