Synthesis and Characterization of Date Palm Fiber-Reinforced Geopolymer Composite

Author(s):  
Mazen Alshaaer ◽  
Obaid Alqahtani ◽  
Meshari M. S. Alharbi ◽  
Abdulaziz O. S. Alanazi ◽  
Khalid A. Aldhafeeri ◽  
...  
2018 ◽  
Vol 5 (1) ◽  
pp. 501-507 ◽  
Author(s):  
N. Nithin Kumar ◽  
SiddeshChincholi ◽  
Preran R. Hegde ◽  
S.Y. Shivagiri ◽  
M. Revanasiddappa

2020 ◽  
Vol 146 ◽  
pp. 112135 ◽  
Author(s):  
Abderrezak Bezazi ◽  
Salah Amroune ◽  
Fabrizio Scarpa ◽  
Alain Dufresne ◽  
Abdellatif Imad

2020 ◽  
Vol 15 ◽  
pp. 155892502094823
Author(s):  
Samir Benaniba ◽  
Zied Driss ◽  
Mokhtar Djendel ◽  
Elhadj Raouache ◽  
Rabah Boubaaya

Due to respect for the environment and the search for more sustainable materials, scientists have started in recent decades to launch studies on bio-composite materials. It is well known that building materials are among the most commonly used materials and have an obvious negative impact on the environment. The development of environmentally friendly composites as insulating materials in buildings offers practical solutions to reduce energy consumption. Therefore, this work presents the use of a new bio-composite material composed of natural fibers, date palm fibers, cement, and sand. In addition, the study on the effect of adding date palm fibers on the thermo-mechanical characteristics of mortars assesses the thermal insulation properties as well as the water absorption and mechanical performance of this new bio-composite material to use it in the construction of buildings. The percentage by weight of date palm fiber in the test samples varied from 0% to 30% for a fiber size of length equal to 7 mm. The characteristics of these samples were determined experimentally in terms of resistance to bending and compression as well as thermal conductivity. The results show that while increasing the weight of date palm fiber, an obviously reduction in thermal conductivity, flexural, and compressive strength of the composite is observed. Hence, date palm fiber has a positive effect on the thermo-mechanical properties of the composite material. Therefore, it considerably improves the insulating capacity of the mortar.


Polymers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 597 ◽  
Author(s):  
Mohammed Sh. Al-Otaibi ◽  
Othman Y. Alothman ◽  
Maher M. Alrashed ◽  
Arfat Anis ◽  
Jesuarockiam Naveen ◽  
...  

In this study, the effect of different polypropylene (PP) matrices (homopolymer (HPP), impact copolymer (ICP), and recycled polypropylene (rPP)) on the mechanical, morphological, and thermal properties of date palm fiber (DPF)-reinforced PP composites was investigated. The DPFs were treated with an alkali solution, and composites were fabricated with different DPF loadings (5, 10, and 15 wt %) and lengths (less than 2 mm and 8–12 mm). It was found that the tensile properties of the DPF/ICP and DPF/rPP composites were similar to those of the DPF/HPP composites. The addition of fiber to the matrix reduced its tensile strength but increased the modulus. The alkali treatment improved the compatibility between the fibers and the matrix by removing hemicellulose and other impurities. Fourier transform infrared spectroscopy confirmed hemicellulose removal. The morphology of the alkali-treated fractured tensile specimen revealed improved adhesion and less fiber pull out. Differential scanning calorimetry revealed that the alkali treatment enhanced the crystallinity index. Thermogravimetric analysis showed that the addition of DPFs into the PP matrix reduced the thermal stability of the composite. However, the thermal stability of the treated fiber-reinforced rPP and ICP composites was similar to that of the DPF/HPP composite. Hence, rPP can be used as an alternative to HPP with DPFs.


2021 ◽  
pp. 1-14
Author(s):  
Janaki Dehury ◽  
Jyoti Ranjan Mohanty ◽  
Subhakanta Nayak ◽  
PriyaRanjan Samal ◽  
Sujit Kumar Khuntia ◽  
...  

2012 ◽  
Vol 13 (7) ◽  
pp. 1199-1206 ◽  
Author(s):  
Abdalla Abdal-hay ◽  
Ngakan Putu Gede Suardana ◽  
Do Yeon Jung ◽  
Kwang-Seog Choi ◽  
Jae Kyoo Lim

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