Electromagnetic interference shielding efficiency of irradiated wood-plastic composites based on graphene oxide nanoparticles

Awad, Eman H.; El‐Nemr, Khaled F.; Atta, M. M.; Abdel‐Hakim, A.; Sharaf, Abdelhameed

doi:10.1016/j.radphyschem.2022.110629

Cited by 17 publications

(20 citation statements)

References 47 publications

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“…40,54 As per our previous investigation, the incorporation of CB and GO to HDPE/BF composite enhances the interfacial bonding between the BF and HDPE matrix causing an improvement in mechanical properties. 40 This improvement is due to the load transfer from the polymeric matrix to the reinforcing filler becomes easier. Incorporating 10 parts per hundreds of CB resulted in a 9.4% enhancement in the tensile strength of HF, which was initially measured at 13.1 MPa.…”

Section: X-ray Diffractionmentioning

confidence: 55%

“…The HDPE chain scission at high dosages (200 kGy) causing a drop in tensile strength 40,54 . As per our previous investigation, the incorporation of CB and GO to HDPE/BF composite enhances the interfacial bonding between the BF and HDPE matrix causing an improvement in mechanical properties 40 . This improvement is due to the load transfer from the polymeric matrix to the reinforcing filler becomes easier.…”

Section: Resultsmentioning

confidence: 78%

“…This material, with its excellent water‐repelling properties, can improve the overall structural strength of the composite, particularly when exposed to moisture or humid conditions. By incorporating GO into the matrix of the composite, it will attach to the surface of the BF, which increases the hydrophobic properties of the HDPE/BF composite 40,77 . The water may be transported to the fiber‐polymeric matrix contact as a result of the development of micropores.…”

Section: Resultsmentioning

confidence: 99%

“…This improvement is reflected favorably in the mechanical properties. 40 In addition, when HDPE is irradiated using high-energy radiation, such as an electron beam (EB), the polymer chains may degrade in response to an increasing irradiation dose. During irradiation, crosslinking and degradation processes exhibit a competitive relationship, where the former prevails at lower doses and the latter at higher doses.…”

Section: X-ray Diffractionmentioning

confidence: 99%

“…The impact of these parameters on the flexural strength, electrical conductivity, morphology, and electromagnetic shielding capability of the HDPE/BF composite was studied in our previous work. 40 In this work, our previous study is extended through an investigation of the influence of CB, GO, and E-beam irradiation on the tensile properties, dynamic-mechanical properties, water absorption and thermal properties of the HDPE/BF composite.…”

mentioning

confidence: 99%

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Effect of nanographene oxide and ionizing radiation on mechanical, physical, and thermal properties of composites based on high‐density polyethylene and waste bagasse fibers

Awad,

Abdel‐Hakim,

Atta

et al. 2023

Polymer Composites

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The impact of graphene oxide (GO) nanoparticle content and exposure to electron beam (EB) on the tensile, dynamic mechanical, water uptake, and thermal properties of high‐density polyethylene/bagasse fibers composite was investigated. The GO was added at different loading levels: 0.25, 0.5, 0.75, and 1 parts per hundred parts of plastic (php), while 2 doses of EB were used (100 and 200 kGy). The influence of adding 10 php of carbon black (CB) to the HDPE/BF was also investigated. The addition of GO and irradiation up to 100 kGy, along with the inclusion of 10 php of CB, led to improvements in tensile strength, elastic modulus, storage modulus, and hardness. The composite containing 1 php of GO and exposed to 100 kGy, demonstrated the highest tensile strength value, with a 47.3% improvement compared with the unirradiated one. This composite also, exhibited the lowest values of water absorption percent (3.7%) and diffusion coefficient (0.007 mm2/h) compared with the unirradiated HDPE/BF composite. These results suggest that the resulting composite has potential for use in advanced industrial applications due to its improved physicomechanical properties.Highlights Composites based on high‐density polyethylene (HDPE) and bagasse fibers (BF) were fabricated The incorporation of graphene oxide (GO) improved the mechanical properties. GO and electron beam (EB) irradiation enhanced the water resistance of HDPE/BF composite. Both GO and EB increased the thermal stability of HDPE/BF composite.

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Section: X-ray Diffractionmentioning

confidence: 55%

Section: Resultsmentioning

confidence: 78%

Section: Resultsmentioning

confidence: 99%

Section: X-ray Diffractionmentioning

confidence: 99%

mentioning

confidence: 99%

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Effect of nanographene oxide and ionizing radiation on mechanical, physical, and thermal properties of composites based on high‐density polyethylene and waste bagasse fibers

Awad,

Abdel‐Hakim,

Atta

et al. 2023

Polymer Composites

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Structural, mechanical, and thermal features of PVA/starch/graphene oxide nanocomposite enriched with WO₃ as gamma–ray radiation shielding materials for medical applications

Atta,

Abou‐Laila,

Abdelwahed

et al. 2023

Polymer Engineering & Sci

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Polyvinyl alcohol (PVA)/starch/graphene oxide nanocomposites containing different ratios of tungsten oxide (WO3) were prepared for use in the medical field as low‐cost, facile, eco‐friendly, and biodegradable low‐energy γ‐ray shielding materials. The effect of different WO3 loading (0, 2, 4, 8, and 12 wt%) on nanocomposites' structural, mechanical, and gamma attenuation properties was studied. X‐ray diffraction, Fourier transform infrared spectroscopy, and scanning electron microscope verified the incorporation of WO3 into the nanocomposite matrix. The thermal stability and activation energy of the decomposition of nanocomposites showed continuous improvement with increasing WO3. The maximum tensile strength and elongation of nanocomposites were achieved by incorporating 4 wt% WO3 compared to the lowest tensile strength and elongation at 8 and 12 wt% of WO3, respectively. The good filler distribution inside the polymeric matrix at lower filler loading compared to the creation of voids and agglomeration at higher filler levels explains this behavior. It was found that nanocomposites' calculated mass attenuation coefficient μm (cm2/g) increased with increasing WO3 at different photon energies. Half‐value layer (HVL) and tenth‐value layer (TVL) values fall as WO3 concentration rises. The sample with 12 wt% of WO3 exhibits lower HVL and TVL values and higher μm, demonstrating a more remarkable gamma attenuation ability. Such results endorsed the prepared nanocomposites as low energy γ‐rays attenuation materials in medical fields.Highlights PVA/starch/graphene oxide nanocomposites with different WO3s were fabricated as shielding materials. The impact of WO3 on nanocomposites' mechanical and shielding characteristics was studied Thermal stability of nanocomposites showed continuous improvement with increasing WO3 μm increased with continuously increasing WO3 at different photon energies.

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Synthesis and characterization of waste polyethylene/Bi₂O₃ composites reinforced with CuO/ZnO nanoparticles as sustainable radiation shielding materials

Awad,

Raslan,

Abou‐Laila

et al. 2024

Polymer Engineering & Sci

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In the present research, waste polyethylene (WPE)/Bi2O3 composites have been investigated as lightweight, inexpensive, and nontoxic lead‐free γ‐ray shielding materials. Different WPE‐based composites were prepared with varying concentrations of Bi2O3 (30 and 40 phr). The effect of adding ZnO and CuO nanoparticles (NPs) inside the WPE/Bi2O3 (30) matrix was studied by incorporating 10 phr of NPs inside it. The nanocomposites' structural, thermal, and mechanical properties and competence in shielding against γ‐radiation are studied. The outcomes revealed that the mechanical properties of the pristine WPE were enhanced after incorporating Bi2O3 by 30 phr, and then it worsened after increasing the Bi2O3 ratio to 40 phr. In contrast, better mechanical properties were obtained for those composites with NPs, where the maximum tensile strength (16.2 MPa) was recorded for the WPE/Bi2O3/CuO composite (higher than WPE by 47.27%). Numbers of parameters like μm, HVL (half‐value layer), TVL (tenth value layer), RPE%, and percentage of heaviness can denote the efficiency of shielding properties of composites at 662 KeV from 137Cs point source. It was found that μm and RPE% reach the maximum value for WPE/Bi2O3 (40 phr). Adding NPs decreases μm of WPE/Bi2O3 (30) slightly.Highlights Composites based on waste polyethylene (WPE)/Bi2O3 (30 and 40 phr) were fabricated. Nano CuO and ZnO improved the mechanical properties of WPE/Bi2O3 (30). WPE/Bi2O3 (40) composites show the best shielding characteristics. Nano CuO and ZnO slightly decreased μm of WPE/Bi2O3 (30).

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Electromagnetic interference shielding efficiency of irradiated wood-plastic composites based on graphene oxide nanoparticles

Cited by 17 publications

References 47 publications

Effect of nanographene oxide and ionizing radiation on mechanical, physical, and thermal properties of composites based on high‐density polyethylene and waste bagasse fibers

Effect of nanographene oxide and ionizing radiation on mechanical, physical, and thermal properties of composites based on high‐density polyethylene and waste bagasse fibers

Structural, mechanical, and thermal features of PVA/starch/graphene oxide nanocomposite enriched with WO₃ as gamma–ray radiation shielding materials for medical applications

Synthesis and characterization of waste polyethylene/Bi₂O₃ composites reinforced with CuO/ZnO nanoparticles as sustainable radiation shielding materials

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Electromagnetic interference shielding efficiency of irradiated wood-plastic composites based on graphene oxide nanoparticles

Cited by 17 publications

References 47 publications

Effect of nanographene oxide and ionizing radiation on mechanical, physical, and thermal properties of composites based on high‐density polyethylene and waste bagasse fibers

Effect of nanographene oxide and ionizing radiation on mechanical, physical, and thermal properties of composites based on high‐density polyethylene and waste bagasse fibers

Structural, mechanical, and thermal features of PVA/starch/graphene oxide nanocomposite enriched with WO3 as gamma–ray radiation shielding materials for medical applications

Synthesis and characterization of waste polyethylene/Bi2O3 composites reinforced with CuO/ZnO nanoparticles as sustainable radiation shielding materials

Contact Info

Product

Resources

About

Structural, mechanical, and thermal features of PVA/starch/graphene oxide nanocomposite enriched with WO₃ as gamma–ray radiation shielding materials for medical applications

Synthesis and characterization of waste polyethylene/Bi₂O₃ composites reinforced with CuO/ZnO nanoparticles as sustainable radiation shielding materials