Energy absorption capability of date palm leaf fiber reinforced epoxy composites rectangular tubes

2019 ◽  
Vol 224 ◽  
pp. 111004 ◽  
Author(s):  
E. Mahdi ◽  
D. Ochoa ◽  
A. Vaziri ◽  
E. Eltai
Keyword(s):  
Energy Absorption ◽  
Date Palm ◽  
Epoxy Composites ◽  
Fiber Reinforced ◽  
Rectangular Tubes ◽  
Palm Leaf ◽  
Leaf Fiber

scholarly journals Khalasa Date Palm Leaf Fiber as a Potential Reinforcement for Polymeric Composite Materials

2020 ◽  
pp. 113501
Author(s):  
Elsadig Mahdi ◽  
Daniel R. Hernández Ochoa ◽  
Ashkan Vaziri ◽  
Aamir Dean ◽  
Murat Kucukvar
Keyword(s):  
Composite Materials ◽  
Date Palm ◽  
Polymeric Composite ◽  
Polymeric Composite Materials ◽  
Palm Leaf ◽  
Leaf Fiber

Mechanical, chemical and sound absorption properties of glass/kenaf/waste tea leaf fiber-reinforced hybrid epoxy composites

2020 ◽  
pp. 152808372095739 ◽  
Author(s):  
L Prabhu ◽  
V Krishnaraj ◽  
S Gokulkumar ◽  
S Sathish ◽  
MR Sanjay ◽  
...  
Keyword(s):  
Sound Absorption ◽  
Hybrid Composites ◽  
Experimental Studies ◽  
Epoxy Composites ◽  
Fiber Reinforced ◽  
Waste Tea ◽  
Kenaf Fibers ◽  
Tea Leaf ◽  
Absorption Characteristics ◽  
Leaf Fiber

This work aims to investigate the mechanical and sound absorption characteristics of industrial waste tea leaf fiber (WTLF), kenaf and E-glass fiber–reinforced hybrid epoxy composites through experimental studies. The WTLF and kenaf fibers were initially treated with 5% sodium hydroxide. Hybrid composites were fabricated by compression molding technique with a composition of 40 wt.% fiber and 60 wt.% matrix. The fabricated hybrid composites were subjected to mechanical and sound absorption studies as per ASTM standards. Results revealed better mechanical properties in the composites with 25 wt.% kenaf and 5 wt.% WTLF, whereas sound absorption characteristics were better for composites containing 25 wt.% WTLF and 5 wt.% kenaf fiber. The surface morphology of the fractured specimens such as fiber pullout and matrix crack was examined using scanning electron microscopy. Spectrum investigation of alkali-treated hybrid composites showed excellent interfacial bonding between the polymer and fiber compared to the untreated fiber.

scholarly journals Mechanical, Morphological, Thermal and Dynamic Study of Composites of Unsaturated Polyesters-Date Palm Leaf Fiber DPLF

2021 ◽  
Vol 31 (6) ◽  
pp. 317-323
Author(s):  
Abir Berkouk ◽  
Ahmed Meghezzi ◽  
Hamza Chelali ◽  
Mohamed Toufik Soltani
Keyword(s):  
Alkaline Solution ◽  
Chemical Treatment ◽  
Date Palm ◽  
Fiber Composite ◽  
Composite Plates ◽  
Scanning Calorimetry ◽  
Unsaturated Polyesters ◽  
Untreated Fiber ◽  
Palm Leaf ◽  
Leaf Fiber

In order to improve the properties of unsaturated polyesters, this study discusses the possibilities of developing a natural waste, date palm leaf fiber DPLF, produced in the northern Algerian Sahara, associated with the polymer matrix of a thermosetting polyester resin UP. For this purpose, composite plates containing virgin fiber at rates of 6 and 10% were treated with an alkaline solution of 6% NaOH on the one hand, and a silane compound on the other. In this research, a mechanical study of strength and elongation at break was carried out. In addition, morphological behavior was followed by SEM scanning electron microscopy. ATG thermogravimetric analysis and energy flow were monitored by DSC differential scanning calorimetry. Also, a study of the water absorption capacity has been conducted. In addition, a dynamic mechanical analysis DMA was carried out. The findings of this study show that there is a favorable mechanical behavior for the composites containing the 6% and 10% DPLF fiber, with alkaline NaOH and Silane treatment. They also show that the chemical treatment with alkaline solution and silane gives composites certain thermal stability compared to those with untreated fiber. Findings also explore that the absorption of water by the various composites shows that the chemical treatment promotes some intermolecular associations with water. Findings also show that the storage modulus (E') increases when the composite contains 10% DPLF, treated and untreated, and the maximum value of the tangent moves towards the high temperature for the treated and untreated fiber composite.

Compressive Characterization of Date Palm Leaf Fiber

2021 ◽  
pp. 1-14
Author(s):  
Jajneswar Nanda ◽  
Sankar Narayan Das ◽  
Abhipreet Mohapatra
Keyword(s):  
Date Palm ◽  
Palm Leaf ◽  
Leaf Fiber

Investigation on solid particle erosion behavior of date palm leaf fiber- reinforced polyvinyl pyrrolidone composites

2015 ◽  
Vol 30 (7) ◽  
pp. 1003-1016 ◽  
Author(s):  
Jyoti R Mohanty
Keyword(s):  
Solid Particle ◽  
Erosion Rate ◽  
Date Palm ◽  
Polyvinyl Pyrrolidone ◽  
Solid Particle Erosion ◽  
Fiber Reinforced ◽  
Impingement Angle ◽  
Particle Erosion ◽  
Erosion Behavior ◽  
Palm Leaf

The present investigation reports about the solid particle erosion behavior of randomly oriented short date palm leaf (DPL) fiber-reinforced polyvinyl pyrrolidone composites. The erosion rates of these composites have been evaluated at different impingement angles (15–90°) and impact velocities (48–109 m/s). The neat polyvinyl pyrrolidone shows maximum erosion rate at 30° impingement angle, whereas, PVA/DPL composites exhibit maximum erosion rate at 45° impingement angle irrespective of fiber loading showing semi-ductile behavior. Erosion efficiency ( η) values (2.83–15.29%) indicate micro-ploughing and micro-cutting as dominant wear mechanisms. The morphology of eroded surfaces was examined by scanning electron microscopy. Possible erosion mechanisms are discussed.

Comprehensive Characterization of Date Palm Petiole Fiber Reinforced Epoxy Composites: Effect of Fiber Treatment and Loading on Various Properties

2021 ◽  
pp. 1-14
Author(s):  
Janaki Dehury ◽  
Jyoti Ranjan Mohanty ◽  
Subhakanta Nayak ◽  
PriyaRanjan Samal ◽  
Sujit Kumar Khuntia ◽  
...  
Keyword(s):  
Date Palm ◽  
Epoxy Composites ◽  
Fiber Reinforced ◽  
Fiber Treatment ◽  
Comprehensive Characterization

Dielectric Properties of Pineapple Leaf Fiber Reinforced Epoxy Based Composites

2017 ◽  
Vol 730 ◽  
pp. 42-47 ◽  
Author(s):  
Elammaran Jayamani ◽  
Soon Kok Heng ◽  
Muhammad Khusairy bin Bakri
Keyword(s):  
Dielectric Constant ◽  
Dielectric Properties ◽  
Sodium Hydroxide ◽  
Epoxy Composites ◽  
Fiber Reinforced ◽  
Fiber Concentration ◽  
Fiber Loading ◽  
Pineapple Leaf Fiber ◽  
Sodium Hydroxide Treatment ◽  
Leaf Fiber

The present study investigates the dielectric constant, loss factor and dissipation factor of pineapple leaf fiber reinforced epoxy composites as in function of fiber loading, fiber surface modification and frequency. The dielectric properties of the composites were measured using HP 16451 as the dielectric test fixture and was carried out on pineapple leaf fiber reinforced epoxy composites with varying fiber loading (5wt%, 10wt%, 15wt%, and 20wt%) and fiber subjected to sodium hydroxide treatment. It was observed that the dielectric properties of these composites were influenced by fiber loading and sodium hydroxide treatment. The dielectric constant increases with increase of fiber concentration and decrease with the increase of frequency in the case of all composites. It was also observed that the increase of dielectric constant with fiber loading was more significant at low frequency. Due to a reduction in the hydrophilic nature of pineapple leaf fiber brought about by sodium hydroxide treatment the dielectric properties of the composites was less than that of the untreated ones.

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