Mechanical behavior of Emirati red shale fillers/unsaturated polyester composite

Mourad, Abdel‐Hamid I.; Abu‐Jdayil, Basim; Hassan, M.

doi:10.1007/s42452-020-2284-4

Cited by 7 publications

(4 citation statements)

References 41 publications

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“…However, there was a decrease in flexural strength upon addition of clay and this can be linked to the formation of agglomerates which creates stress concentration points leading to early failure of the composites. Similar results have been observed by Mourad et al [57] and Abu-Jdayil et al [60].…”

Section: Flexural Propertiessupporting

confidence: 90%

“…Further reduction was noticed with an increment in filler content until it reached 9.465 MPa at 14 weight percent CPH. Similar decrease in UPT strength with addition of filler has been reported by Mourad et al [57]. The particle size of the CPH could play a critical role in the reduction of the tensile strength by increasing the area of stress concentration zones [58].…”

Section: Tensile Propertiessupporting

confidence: 73%

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Mechanical and Thermomechanical Properties of Clay-Cowpea (Vigna Unguiculata Walp.) Husks Polyester Bio-Composite for Building Applications

et al. 2022

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This study investigates the feasibility of creating a clay polymer-based composite using cowpea husk (CPH) as filler for production of roof tiles. Polymeric composites were fabricated by mixing unsaturated polyester (UPT) resin with cowpea husk at different filler weights and curing. A hybrid composite was produced with the addition of 3 wt.% clay and all samples produced were subjected to flexural, hardness and dynamic mechanical analysis (DMA) tests. The effect of clay addition on the mechanical and thermo-mechanical behaviour of formulated composites was investigated. The morphological analysis of the mono and hybrid system shows a rough and coarse inhomogeneous surface with voids created due to the addition of CPH filler for the mono reinforced and clay uniformly filling the voids that were created by the CPH in the hybrid composite. It is observed that hardness, tensile modulus and flexural modulus of hybrid composites increase with an increase in the CPH contents, while the strength and flexural strength all decrease with filler content. The optimal composition was obtained using Grey relational analysis (GRA) at 18% CPH for both mono and hybrid composite. The results imply that the composite combination can be used in making rooftiles and/or also in applications where low strength is required.

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Section: Flexural Propertiessupporting

confidence: 90%

Section: Tensile Propertiessupporting

confidence: 73%

Mechanical and Thermomechanical Properties of Clay-Cowpea (Vigna Unguiculata Walp.) Husks Polyester Bio-Composite for Building Applications

et al. 2022

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“…Five samples of each type were tested for uniformity and repeatability. The test was conducted following the ASTM D790 standard [5,[36][37][38][39][40]. For three-point bending, eight 1.7 cm strips were cut from each sample, and their flexural modulus (E bend ) and flexural strength (σ fM ) were calculated.…”

Section: Three-point Bending Testmentioning

confidence: 99%

Impact Strengthening of Laminated Kevlar/Epoxy Composites by Nanoparticle Reinforcement

et al. 2020

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Herein, we report the fabrication and characterization of high-strength Kevlar epoxy composite sheets for structural application. This process includes optimization of the curing conditions of composite preparation, such as curing time and temperature, and the incorporation of nanofillers, such as aluminum oxide (Al2O3), silicon carbide (SiC), and multi-walled carbon nanotubes (MWCNT) in different weight percentages. Differential scanning calorimetry (DSC) was utilized to investigate the thermal stability and curing behavior of the epoxy, finding that a minimum of 5 min is required for complete curing under an optimized temperature of 170 °C. Moreover, mechanical characterization, including flexural and drop-weight tests, were performed and found to be in good agreement with the DSC results. Our results show that nanofiller incorporation improves the mechanical properties of Kevlar epoxy composites. Among the tested samples, 0.5% MWCNT incorporation obtained the highest mechanical strength.

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“…The formed crystalline structure could have possibly caused brittleness in the material which reduced the tensile properties of the UPR-PUD composites. Compared to other UPR based composites, the UPR-PUD composites demonstrate higher tensile strengths than UPR-date seed (7.7-37.6 MPa) [32] and UPR-bauxite residue (4.0-19.3 MPa) [25], and are very close to the tensile strength of UPR-red shale (20-40 MPa) [41], UPR-carbon nanotubegraphene (26-42 MPa) [42], UPR-non-metallic fractions (28-36 MPa) [43], and UPR-jute (37-43 MPa) [44]…”

Section: Mechanical Behavior Of Compositesmentioning

confidence: 79%

Utilization of Polyurethane Foam Dust in Development of Thermal Insulation Composite

et al. 2022

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The massive production of Polyurethane foam from various products generates an extensive amount of waste, mostly in the form of dust that is emitted while cutting, trimming, or grinding the foam. In this research, the polyurethane dust (PUD) waste is incorporated into unsaturated polyester resin (UPR) to fabricate a heat insulation composite material to be used in construction. Filler percentages ranging from 10% to 50% were used to make the UPR-PUD composite materials. The thermal and mechanical properties of the material were studied in order to evaluate the ability of the composites for this type of application. Thermogravimetric Analysis and Differential Scanning Calorimeter tests were applied to determine the thermal stability of the material. In addition, the microstructure of the prepared composites and the incorporation of PUD filler into the polyester matrix were investigated by Scanning Electron Microscopy, X-ray diffraction (XRD), and Fourier-transform infrared spectroscopy (FTIR) analysis. The FTIR and XRD analyses suggested that adding PUD improved the curing process of unsaturated polyester and enhanced its crystalline structure. The experimental results showed promising thermal insulation capability, with low thermal conductivity in the range of 0.076 to 0.10 and low water retention. Moreover, the composites exhibited compression strength between 56 and 100 MPa and tensile strength between 10.3 and 28 MPa, much higher than traditional thermal insulators and many building materials.

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Mechanical behavior of Emirati red shale fillers/unsaturated polyester composite

Cited by 7 publications

References 41 publications

Mechanical and Thermomechanical Properties of Clay-Cowpea (Vigna Unguiculata Walp.) Husks Polyester Bio-Composite for Building Applications

Mechanical and Thermomechanical Properties of Clay-Cowpea (Vigna Unguiculata Walp.) Husks Polyester Bio-Composite for Building Applications

Impact Strengthening of Laminated Kevlar/Epoxy Composites by Nanoparticle Reinforcement

Utilization of Polyurethane Foam Dust in Development of Thermal Insulation Composite

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