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Zare H, Hosseini MA, Malekie S. Evaluation of 10 MeV electron irradiation-induced defects in graphene oxide and multi-walled carbon nanotube using a multi-analytical approach. NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH SECTION B: BEAM INTERACTIONS WITH MATERIALS AND ATOMS 2023; 543:165089. [DOI: https:/doi.org/10.1016/j.nimb.2023.165089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/21/2023]
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Zare H, Hosseini MA, Malekie S. Evaluation of 10 MeV electron irradiation-induced defects in graphene oxide and multi-walled carbon nanotube using a multi-analytical approach. NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH SECTION B: BEAM INTERACTIONS WITH MATERIALS AND ATOMS 2023; 543:165089. [DOI: 10.1016/j.nimb.2023.165089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
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Suman G, Pulikkathara M, Wilkins R, Treadwell LJ. Ionizing Radiation Sensing with Functionalized and Copper-Coated SWCNT/PMMA Thin Film Nanocomposites. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2653. [PMID: 37836294 PMCID: PMC10574655 DOI: 10.3390/nano13192653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 09/19/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023]
Abstract
This paper studies the ionizing radiation effects on functionalized single-walled carbon nanotube (SWCNT)/poly(methyl methacrylate) (PMMA) thin-film nanocomposites [SWNT/PMMA]. The functionalized thin-film devices are made of ferrocene-doped SWCNTs, SWCNTs functionalized with carboxylic acid (COOH), and SWCNTs coated/ modified with copper. The nanocomposite was synthesized by the solution blending method and the resulting nanocomposite was spin-cast on interdigitated electrodes (IDEs). A 160 kV X-ray source was used to irradiate the thin film and changes in the electrical resistance of the nanocomposites due to X-rays were measured using a semiconductor device analyzer. Carboxylic acid functionalized and copper-coated SWCNT/PMMA nanocomposite showed a reduced response to X-rays compared to unfunctionalized SWCNT/PMMA nanocomposite. Ferrocene-doped SWCNT showed a higher sensitivity to X-rays at lower dose rates. This is in contrast to a previous study that showed that similar nanocomposites using functionalized multi-walled CNTs (MWCNTs) had demonstrated an improved response to X-rays ionizing radiation compared to unfunctionalized MWCNTs for all dose rates. Electrical measurements were also performed using the Arduino Nano microcontroller. The result showed that a relatively economical, lightweight-designed prototype radiation sensor based on SWCNT/PMMA thin-film devices could be produced by interfacing the devices with a modest microcontroller. This work also shows that by encapsulating the SWCNT/PMMA thin-film device in a plastic container, the effect of ambient humidity can be reduced and the device can still be used to detect X-ray radiation. This study further shows that the sensitivity of SWCNT to X-rays was dependent on both the functionalization of the SWCNT and the dose rate.
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Affiliation(s)
- Guddi Suman
- Sandia National Laboratories, Albuquerque, NM 87106, USA;
| | - Merlyn Pulikkathara
- Department of Chemistry and Physics, Prairie View A&M University, Prairie View, TX 77446, USA;
| | - Richard Wilkins
- Electrical and Computer Engineering Department, Prairie View A&M University, Prairie View, TX 77446, USA;
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Hosseini Aghdam SR, Aghamiri SMR, Malekie S, Mosayebi A. Evaluating the linearity response for a PVA/MWCNT-OH nanocomposite dosimeter in photon beam of linear accelerator. Radiat Phys Chem Oxf Engl 1993 2023; 210:111044. [DOI: https:/doi.org/10.1016/j.radphyschem.2023.111044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/21/2023]
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Hosseini Aghdam SR, Aghamiri SMR, Malekie S, Mosayebi A. Evaluating the linearity response for a PVA/MWCNT-OH nanocomposite dosimeter in photon beam of linear accelerator. Radiat Phys Chem Oxf Engl 1993 2023; 210:111044. [DOI: 10.1016/j.radphyschem.2023.111044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
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Hosseini Aghdam SR, Aghamiri SMR, Malekie S, Mosayebi A. Performance characteristics of a parallel plate dosimeter based on PVA/MWCNT-OH nanocomposite for photon beam radiation. MEASUREMENT 2023; 207:112419. [DOI: https:/doi.org/10.1016/j.measurement.2022.112419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/21/2023]
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Hosseini Aghdam SR, Aghamiri SMR, Malekie S, Mosayebi A. Performance characteristics of a parallel plate dosimeter based on PVA/MWCNT-OH nanocomposite for photon beam radiation. MEASUREMENT 2023; 207:112419. [DOI: 10.1016/j.measurement.2022.112419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
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Hosseini MA, Zare H, Malekie S. Raman spectroscopy of electron irradiated Multi-Walled Carbon Nanotube for dosimetry purposes. Radiat Phys Chem Oxf Engl 1993 2023. [DOI: 10.1016/j.radphyschem.2022.110535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Hosseini MA, Zare H, Malekie S. Raman spectroscopy of electron irradiated Multi-Walled Carbon Nanotube for dosimetry purposes. Radiat Phys Chem Oxf Engl 1993 2023; 202:110535. [DOI: https:/doi.org/10.1016/j.radphyschem.2022.110535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/21/2023]
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Veiskarami A, Sardari D, Malekie S, Mofrad FB, Kashian S. Computational prediction of electrical percolation threshold in polymer/graphene-based nanocomposites with finite element method. JOURNAL OF POLYMER ENGINEERING 2022; 42:936-945. [DOI: 10.1515/polyeng-2022-0101] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
Abstract
In this research work, a two-dimensional model to predict the electrical percolation threshold (EPT) of the polymer/graphene-based nanocomposites in different concentrations of the randomly dispersed inclusions in various polymer matrices is introduced using the finite element method (FEM). The predicted EPT values were validated by other experimental results for different nanocomposites. Results showed that the electrical conductivity of different nanocomposites is significantly related to the percentage weight of the reinforcing phase in the polymer matrix. Furthermore, the addition of graphene-based nano-fillers in the polymer matrix caused a decrease in the tunneling distance in nanocomposites.
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Affiliation(s)
- Amir Veiskarami
- Department of Medical Radiation Engineering, Science and Research Branch , Islamic Azad University , Tehran , Iran
| | - Dariush Sardari
- Department of Medical Radiation Engineering, Science and Research Branch , Islamic Azad University , Tehran , Iran
| | - Shahryar Malekie
- Radiation Application Research School, Nuclear Science and Technology Research Institute , P.O. Box 31485-498 , Karaj , Iran
| | - Farshid Babapour Mofrad
- Department of Medical Radiation Engineering, Science and Research Branch , Islamic Azad University , Tehran , Iran
| | - Sedigheh Kashian
- Radiation Application Research School, Nuclear Science and Technology Research Institute , P.O. Box 31485-498 , Karaj , Iran
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Veiskarami A, Sardari D, Malekie S, Mofrad FB, Kashian S. Computational prediction of electrical percolation threshold in polymer/graphene-based nanocomposites with finite element method. JOURNAL OF POLYMER ENGINEERING 2022; 42:936-945. [DOI: https:/doi.org/10.1515/polyeng-2022-0101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/21/2023]
Abstract
Abstract
In this research work, a two-dimensional model to predict the electrical percolation threshold (EPT) of the polymer/graphene-based nanocomposites in different concentrations of the randomly dispersed inclusions in various polymer matrices is introduced using the finite element method (FEM). The predicted EPT values were validated by other experimental results for different nanocomposites. Results showed that the electrical conductivity of different nanocomposites is significantly related to the percentage weight of the reinforcing phase in the polymer matrix. Furthermore, the addition of graphene-based nano-fillers in the polymer matrix caused a decrease in the tunneling distance in nanocomposites.
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Affiliation(s)
- Amir Veiskarami
- Department of Medical Radiation Engineering, Science and Research Branch , Islamic Azad University , Tehran , Iran
| | - Dariush Sardari
- Department of Medical Radiation Engineering, Science and Research Branch , Islamic Azad University , Tehran , Iran
| | - Shahryar Malekie
- Radiation Application Research School, Nuclear Science and Technology Research Institute , P.O. Box 31485-498 , Karaj , Iran
| | - Farshid Babapour Mofrad
- Department of Medical Radiation Engineering, Science and Research Branch , Islamic Azad University , Tehran , Iran
| | - Sedigheh Kashian
- Radiation Application Research School, Nuclear Science and Technology Research Institute , P.O. Box 31485-498 , Karaj , Iran
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Veiskarami A, Sardari D, Malekie S, Mofrad FB, Kashian S. Evaluation of dosimetric characteristics of a ternary nanocomposite based on High Density Polyethylene/Bismuth Oxide/Graphene Oxide for gamma-rays. Sci Rep 2022; 12:18798. [DOI: https:/doi.org/10.1038/s41598-022-23605-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 11/02/2022] [Indexed: 08/21/2023] Open
Abstract
AbstractThis research aims to investigate a ternary nanocomposite based on High Density Polyethylene/ Bismuth Oxide/Graphene Oxide (HDPE/Bi2O3/GO) at various concentrations. Solution method was used to fabricate the samples. FESEM-EDX mapping, AFM, TEM, XRD, XPS, FTIR, and TGA/DTG analyses were carried out on the samples. XRD analysis demonstrated a semi-crystalline behavior for the samples. TEM analysis exhibited a cauliflower-like structure of the material. The sample was irradiated by gamma-rays of 60Co source over the dose rate of 30–254 mGy/min and the electric current was measured as the response of the real-time dosimeter. Thus, various dosimetric characteristics were performed, namely linearity, angular dependence, energy dependence, bias-polarity, field size, and repeatability of the data. Results showed that response of the dosimeter was linear in the range of the investigated dose rate. The sensitivity of the 60 wt% Bi2O3 sample was measured as 3.4 nC·mGy−1. The angular response variation was 20% for normal beam incidence. The response of the dosimeter to assess the energy dependency was obtained as 2.2% at the radiation field of the 137Cs and 60Co beams. The dosimeter response was dependent on the bias-polarity, with maximum discrepancy of 11.1%. The dosimetry response was highly dependent upon the radiation field size. The repeatability of the dosimeter response was measured with standard deviation less than 1%. As well, the dosimeter response during the one-hour irradiation was stable with a standard deviation of 0.66%. Results showed that considering some correction factors, this material can be used for dosimetry of gamma-rays at the therapy level.
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Evaluation of dosimetric characteristics of a ternary nanocomposite based on High Density Polyethylene/Bismuth Oxide/Graphene Oxide for gamma-rays. Sci Rep 2022; 12:18798. [PMID: 36335163 PMCID: PMC9637186 DOI: 10.1038/s41598-022-23605-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 11/02/2022] [Indexed: 11/08/2022] Open
Abstract
This research aims to investigate a ternary nanocomposite based on High Density Polyethylene/ Bismuth Oxide/Graphene Oxide (HDPE/Bi2O3/GO) at various concentrations. Solution method was used to fabricate the samples. FESEM-EDX mapping, AFM, TEM, XRD, XPS, FTIR, and TGA/DTG analyses were carried out on the samples. XRD analysis demonstrated a semi-crystalline behavior for the samples. TEM analysis exhibited a cauliflower-like structure of the material. The sample was irradiated by gamma-rays of 60Co source over the dose rate of 30-254 mGy/min and the electric current was measured as the response of the real-time dosimeter. Thus, various dosimetric characteristics were performed, namely linearity, angular dependence, energy dependence, bias-polarity, field size, and repeatability of the data. Results showed that response of the dosimeter was linear in the range of the investigated dose rate. The sensitivity of the 60 wt% Bi2O3 sample was measured as 3.4 nC·mGy-1. The angular response variation was 20% for normal beam incidence. The response of the dosimeter to assess the energy dependency was obtained as 2.2% at the radiation field of the 137Cs and 60Co beams. The dosimeter response was dependent on the bias-polarity, with maximum discrepancy of 11.1%. The dosimetry response was highly dependent upon the radiation field size. The repeatability of the dosimeter response was measured with standard deviation less than 1%. As well, the dosimeter response during the one-hour irradiation was stable with a standard deviation of 0.66%. Results showed that considering some correction factors, this material can be used for dosimetry of gamma-rays at the therapy level.
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Hosseini MA, Malekie S, Kazemi F. Experimental evaluation of gamma radiation shielding characteristics of Polyvinyl Alcohol/Tungsten oxide composite: A comparison study of micro and nano sizes of the fillers. NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH SECTION A: ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT 2022; 1026:166214. [DOI: 10.1016/j.nima.2021.166214] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
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Hosseini MA, Malekie S, Kazemi F. Experimental evaluation of gamma radiation shielding characteristics of Polyvinyl Alcohol/Tungsten oxide composite: A comparison study of micro and nano sizes of the fillers. NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH SECTION A: ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT 2022; 1026:166214. [DOI: https:/doi.org/10.1016/j.nima.2021.166214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/21/2023]
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Safdari SM, Malekie S, Kashian S, Akbari M. Introducing a novel beta-ray sensor based on polycarbonate/bismuth oxide nanocomposite. Sci Rep 2022; 12:2496. [PMID: 35169247 PMCID: PMC8847460 DOI: 10.1038/s41598-022-06544-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 02/02/2022] [Indexed: 11/09/2022] Open
Abstract
In this research, for the first time, the polycarbonate/bismuth oxide (PC-Bi2O3) composite was studied as a beta-ray sensor using a pure beta-emitter 90Sr source. Firstly, the range and stopping power of the electrons in the composite at various loadings of 0, 10, 20, 30, 40, and 50 wt% were calculated using the ESTAR program. Results of simulation demonstrated that the concentration of the heavy metal oxide particles into the polymer matrix played an important role in evaluating the range and stopping power of the electrons in the composite. Secondly, at the experimental phase, the pure Polycarbonate and 50 wt% PC-Bi2O3 nanocomposite with dimensions of 4 × 4 × 0.1 cm3 were prepared and irradiated by 90Sr. Also, current-voltage (I-V) plot exhibited linear response ranging from 100 to 1000 V at the fixed source-to-surface distance (SSD). Then the amount of electric current as the sensor response was measured in various dose rates at the fixed voltage of 400 V for the pure Polycarbonate and 50 wt% PC-Bi2O3 nanocomposite using an electrometer, in which results showed that the sensitivities were found as 20.3, and 33.3 nC mSv-1 cm-3, respectively. This study showed that this composite could serve as a novel beta-ray sensor.
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Affiliation(s)
- Seyed Musa Safdari
- Department of Nuclear Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Shahryar Malekie
- Radiation Application Research School, Nuclear Science and Technology Research Institute, P.O. Box 31485-498, Karaj, Iran.
| | - Sedigheh Kashian
- Radiation Application Research School, Nuclear Science and Technology Research Institute, P.O. Box 31485-498, Karaj, Iran
| | - Morteza Akbari
- Department of Nuclear Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Safdari SM, Malekie S, Kashian S, Akbari M. Introducing a novel beta-ray sensor based on polycarbonate/bismuth oxide nanocomposite. Sci Rep 2022; 12:2496. [DOI: https:/doi.org/10.1038/s41598-022-06544-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 02/02/2022] [Indexed: 08/21/2023] Open
Abstract
AbstractIn this research, for the first time, the polycarbonate/bismuth oxide (PC–Bi2O3) composite was studied as a beta-ray sensor using a pure beta-emitter 90Sr source. Firstly, the range and stopping power of the electrons in the composite at various loadings of 0, 10, 20, 30, 40, and 50 wt% were calculated using the ESTAR program. Results of simulation demonstrated that the concentration of the heavy metal oxide particles into the polymer matrix played an important role in evaluating the range and stopping power of the electrons in the composite. Secondly, at the experimental phase, the pure Polycarbonate and 50 wt% PC–Bi2O3 nanocomposite with dimensions of 4 × 4 × 0.1 cm3 were prepared and irradiated by 90Sr. Also, current–voltage (I–V) plot exhibited linear response ranging from 100 to 1000 V at the fixed source‐to‐surface distance (SSD). Then the amount of electric current as the sensor response was measured in various dose rates at the fixed voltage of 400 V for the pure Polycarbonate and 50 wt% PC–Bi2O3 nanocomposite using an electrometer, in which results showed that the sensitivities were found as 20.3, and 33.3 nC mSv−1 cm−3, respectively. This study showed that this composite could serve as a novel beta-ray sensor.
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Ebrahimi N, Hosseini MA, Malekie S. Preliminary study of linearity response of γ-irradiated graphene oxide as a novel dosimeter using the Raman spectroscopy. BULLETIN OF MATERIALS SCIENCE 2020; 43:233. [DOI: 10.1007/s12034-020-02177-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Accepted: 05/23/2020] [Indexed: 08/22/2023]
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Hosseini MA, Malekie S, Ebrahimi N. The analysis of linear dose-responses in gamma-irradiated graphene oxide: Can FTIR analysis be considered a novel approach to examining the linear dose-responses in carbon nanostructures? Radiat Phys Chem Oxf Engl 1993 2020. [DOI: 10.1016/j.radphyschem.2020.109067] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Moslehi A, Khoylou F, Akhavan A. Preparation and study of a conductive nanocomposite applicable for the wall material of tissue-equivalent proportional counters used in radiation protection. Radiat Phys Chem Oxf Engl 1993 2019. [DOI: 10.1016/j.radphyschem.2019.108352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Vatankhah AR, Hosseini MA, Malekie S. The characterization of gamma-irradiated carbon-nanostructured materials carried out using a multi-analytical approach including Raman spectroscopy. APPLIED SURFACE SCIENCE 2019; 488:671-680. [DOI: 10.1016/j.apsusc.2019.05.294] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
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EL-Zayat MM, Mohamed MA, Shaltout NA. Effect of maleic anhydride content on physico-mechanical properties of γ-irradiated waste polypropylene/corn husk fibers bio-composites. RADIOCHIM ACTA 2019. [DOI: 10.1515/ract-2019-3121] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Biocomposites of waste polypropylene (wPP) with 20 phr (part per 100 parts of [wPP]) corn husk fibers (CHF) as bio-filler were prepared for environmental aspect. Maleic anhydride (MAH) was used, with 5, 10 phr concentration as compatabilizer was carried out. The obtained biocomposites were irradiated by γ radiation ranging from 5 to 25 kGy. Mechanical, physical and thermal properties of the biocomposites were studied to evaluate the effect of CHF addition on the properties of obtained composites. It has been found that there is deterioration in all properties. However, by the addition of MAH, the former properties were improved. The obtained results were confirmed by Fourier transform infrared (FTIR) and scanning electron microscopy (SEM).
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Affiliation(s)
- Mai M. EL-Zayat
- Radiation Chemistry Department , National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority , 3-Ahmad el-Zomor St, Nasr City, P.O. Box 7551 , Cairo 11762 , Egypt
| | - Maysa A. Mohamed
- Radiation Chemistry Department , National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority , 3-Ahmad el-Zomor St, Nasr City, P.O. Box 7551 , Cairo 11762 , Egypt
| | - Nawal A. Shaltout
- Radiation Chemistry Department , National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority , 3-Ahmad el-Zomor St, Nasr City, P.O. Box 7551 , Cairo 11762 , Egypt
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Malekie S, Hajiloo N. Comparative Study of Micro and Nano Size WO 3/E44 Epoxy Composite as Gamma Radiation Shielding Using MCNP and Experiment. CHINESE PHYSICS LETTERS 2017; 34:108102. [DOI: 10.1088/0256-307x/34/10/108102] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
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Li Q, Li J, Zhang S, Yi C, Xu Z. Novel CH3NH3PbI3/polyimide composites with enhanced film-forming and electrical conductive properties. HIGH PERFORM POLYM 2017. [DOI: 10.1177/0954008317732398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A series of CH3NH3PbI3/polyimide (PI) composite films were successfully fabricated using simple solution mixing. CH3NH3PbI3 particles were evenly dispersed into PI substrate, which could be seen from scanning electron microscopy images. Tensile test showed that the tensile strength of CH3NH3PbI3/PI composite film (5 wt%) was improved to the maximum (102.2 MPa), 127% higher than pure PI; and the elongation at break was remarkably stretched to 13% for CH3NH3PbI3/PI composite film (3 wt%), 171% greater than pure PI. Moreover, the thermal performance was enhanced to the optimum with the addition of 5 wt% CH3NH3PbI3. Ultraviolet–visible absorption curves revealed that the colors of CH3NH3PbI3/PI composite films were darkened and the red shift increased with the increasing content of CH3NH3PbI3. Furthermore, the CH3NH3PbI3/PI composite films exhibited increased dielectric constant with the maximum value of 13.8, compared with pure PI (3.6). These composite films may be promising to be used as dielectric materials in electronic industry.
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Affiliation(s)
- Qing Li
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Material, Hubei University, Wuhan, Hubei, China
| | - Jing Li
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Material, Hubei University, Wuhan, Hubei, China
| | - Shulai Zhang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Material, Hubei University, Wuhan, Hubei, China
| | - Changfeng Yi
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Material, Hubei University, Wuhan, Hubei, China
| | - Zushun Xu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Material, Hubei University, Wuhan, Hubei, China
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Malekie S, Salehpour B. Evaluation of gamma radiation response of electrolyte, MKP and MKT capacitors in various frequencies. RADIOCHIM ACTA 2017; 105:577-581. [DOI: 10.1515/ract-2016-2692] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
Abstract
In this experimental work, the effect of gamma irradiation on the capacitance and impedance of some commercial capacitors namely electrolytic, MKP, and MKT capacitors in different radiation doses up to 120 kGy and a wide range of frequencies between 42 Hz and 5 MHz were studied. Results showed that the capacitances of the electrolytic capacitors exhibited a linear decrease by increasing the radiation dose and frequencies, which can be used for high dosimetry purposes, but non-ceramic capacitors as MKP and MKT showed much higher radiation resistance, particularly for the frequencies less than ~1 MHz.
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Affiliation(s)
- Shahryar Malekie
- Radiation Application Research School, Nuclear Science and Technology Research Institute , PO Box 31485-498 , Karaj , Iran
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Mosayebi A, Malekie S, Ziaie F. A feasibility study of polystyrene/CNT nano-composite as a dosimeter for diagnostic and therapeutic purposes. JOURNAL OF INSTRUMENTATION 2017; 12:P05012-P05012. [DOI: 10.1088/1748-0221/12/05/p05012] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
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Malekie S, Ziaie F, Feizi S, Esmaeli A. Dosimetry characteristics of HDPE–SWCNT nanocomposite for real time application. NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH SECTION A: ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT 2016; 833:127-133. [DOI: 10.1016/j.nima.2016.07.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
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