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Effect of Fiber Loading on Physical, Mechanical, and Thermal Properties of Low Density Polyethylene/Palm Tree Waste Fiber Composites

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Low density polyethylene (LDPE) as a matrix was mixed with palm tree waste (PTW) as a filler to fabricate LDPE-PTW composites with different concentrations of PTW, namely 25, 37.5, 50, 62.5, and 75 wt.%. Physical and mechanical properties as well as thermal stability of the composites were investigated and statistically analyzed. The rate of water absorption and the density of these composites increased with increasing concentration of PTW (wt.%). The highest water absorption (∼8.9%) and density (∼1.11 g/cm3) was for sample containing high PTW concentration (75 wt.%) in this study. However, the tensile properties, including tensile strength, tensile stress at yield and elongation at break, decreased with increasing concentrations of PTW. A maximum decrease of 98% in the tensile stress was observed at 75 wt.% PTW compared with plain LDPE. Statically, the mean values of these variables increased as the concentration of PTW increased. Additionally, LDPE-PTW composites showed a lower thermal stability than those of the pure LDPE matrix. The first onset of decomposition occurred at 288 °C for the composites containing 25 wt.% PTW and decreased to 280 °C for the composites containing 75 wt.% PTW. Such reduction in thermal stability expected.
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Document Type: Research Article

Publication date: September 1, 2018

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  • Science of Advanced Materials (SAM) is an interdisciplinary peer-reviewed journal consolidating research activities in all aspects of advanced materials in the fields of science, engineering and medicine into a single and unique reference source. SAM provides the means for materials scientists, chemists, physicists, biologists, engineers, ceramicists, metallurgists, theoreticians and technocrats to publish original research articles as reviews with author's photo and short biography, full research articles and communications of important new scientific and technological findings, encompassing the fundamental and applied research in all latest aspects of advanced materials.
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