Sheikha A. Alkhursani, N. Aldaleeli, A. M. Elbasiony, Mohamed Mohamady Ghobashy, Mohamed Madani, Samera Ali Al-Gahtany, Ahmed Zaher, A. I. Sharshir
{"title":"用于中压电缆的 Co3O4/碳纳米管填充聚氯乙烯纳米复合材料的模拟与表征","authors":"Sheikha A. Alkhursani, N. Aldaleeli, A. M. Elbasiony, Mohamed Mohamady Ghobashy, Mohamed Madani, Samera Ali Al-Gahtany, Ahmed Zaher, A. I. Sharshir","doi":"10.1007/s00289-024-05435-2","DOIUrl":null,"url":null,"abstract":"<div><p>This study investigates the simulation of electric field distribution and the characterization of Co<sub>3</sub>O<sub>4</sub>/carbon nanotube (CNT)-filled polyvinyl chloride (PVC) nanocomposites for potential applications in medium-voltage cables. The nanocomposites were prepared by incorporating Co<sub>3</sub>O<sub>4</sub> nanoparticles and varying concentrations of CNTs (0, 0.1, 0.15, 0.20, and 0.25% by weight) into a PVC matrix. The UV–Vis spectroscopy revealed an absorption edge of 3.75 eV, a direct bandgap of 5.15 eV, an Urbach tail energy of 0.4594 eV, and a carbon cluster parameter of 44.617 for the PVC/Co<sub>3</sub>O<sub>4</sub> + 0.25% CNT nanocomposite film. Incorporating CNTs enhanced the AC conductivity, dielectric constant, and dielectric loss compared to the pure Co<sub>3</sub>O<sub>4</sub> sample. The highest AC conductivity (7.46 × 10<sup>–4</sup> S/m) was achieved for the PVC/Co<sub>3</sub>O<sub>4</sub> + 0.25% CNT nanocomposite. COMSOL Multiphysics simulations were performed to study the electric field distribution in medium-voltage cables made of PVC and PVC/Co<sub>3</sub>O<sub>4</sub> + 0.25% CNT nanocomposites. The simulations revealed a more uniform electric field distribution in the nanocomposite cable than the pure PVC cable, owing to Co<sub>3</sub>O<sub>4</sub> nanoparticles and CNTs. The novelty of this study is improved uniformity in the electric field distribution for medium-voltage cable applications.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"81 17","pages":"15841 - 15864"},"PeriodicalIF":3.1000,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Simulation and characterization of Co3O4/carbon nanotube-filled PVC nanocomposites for medium-voltage cable applications\",\"authors\":\"Sheikha A. Alkhursani, N. Aldaleeli, A. M. Elbasiony, Mohamed Mohamady Ghobashy, Mohamed Madani, Samera Ali Al-Gahtany, Ahmed Zaher, A. I. Sharshir\",\"doi\":\"10.1007/s00289-024-05435-2\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This study investigates the simulation of electric field distribution and the characterization of Co<sub>3</sub>O<sub>4</sub>/carbon nanotube (CNT)-filled polyvinyl chloride (PVC) nanocomposites for potential applications in medium-voltage cables. The nanocomposites were prepared by incorporating Co<sub>3</sub>O<sub>4</sub> nanoparticles and varying concentrations of CNTs (0, 0.1, 0.15, 0.20, and 0.25% by weight) into a PVC matrix. The UV–Vis spectroscopy revealed an absorption edge of 3.75 eV, a direct bandgap of 5.15 eV, an Urbach tail energy of 0.4594 eV, and a carbon cluster parameter of 44.617 for the PVC/Co<sub>3</sub>O<sub>4</sub> + 0.25% CNT nanocomposite film. Incorporating CNTs enhanced the AC conductivity, dielectric constant, and dielectric loss compared to the pure Co<sub>3</sub>O<sub>4</sub> sample. The highest AC conductivity (7.46 × 10<sup>–4</sup> S/m) was achieved for the PVC/Co<sub>3</sub>O<sub>4</sub> + 0.25% CNT nanocomposite. COMSOL Multiphysics simulations were performed to study the electric field distribution in medium-voltage cables made of PVC and PVC/Co<sub>3</sub>O<sub>4</sub> + 0.25% CNT nanocomposites. The simulations revealed a more uniform electric field distribution in the nanocomposite cable than the pure PVC cable, owing to Co<sub>3</sub>O<sub>4</sub> nanoparticles and CNTs. 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Simulation and characterization of Co3O4/carbon nanotube-filled PVC nanocomposites for medium-voltage cable applications
This study investigates the simulation of electric field distribution and the characterization of Co3O4/carbon nanotube (CNT)-filled polyvinyl chloride (PVC) nanocomposites for potential applications in medium-voltage cables. The nanocomposites were prepared by incorporating Co3O4 nanoparticles and varying concentrations of CNTs (0, 0.1, 0.15, 0.20, and 0.25% by weight) into a PVC matrix. The UV–Vis spectroscopy revealed an absorption edge of 3.75 eV, a direct bandgap of 5.15 eV, an Urbach tail energy of 0.4594 eV, and a carbon cluster parameter of 44.617 for the PVC/Co3O4 + 0.25% CNT nanocomposite film. Incorporating CNTs enhanced the AC conductivity, dielectric constant, and dielectric loss compared to the pure Co3O4 sample. The highest AC conductivity (7.46 × 10–4 S/m) was achieved for the PVC/Co3O4 + 0.25% CNT nanocomposite. COMSOL Multiphysics simulations were performed to study the electric field distribution in medium-voltage cables made of PVC and PVC/Co3O4 + 0.25% CNT nanocomposites. The simulations revealed a more uniform electric field distribution in the nanocomposite cable than the pure PVC cable, owing to Co3O4 nanoparticles and CNTs. The novelty of this study is improved uniformity in the electric field distribution for medium-voltage cable applications.
期刊介绍：
"Polymer Bulletin" is a comprehensive academic journal on polymer science founded in 1988. It was founded under the initiative of the late Mr. Wang Baoren, a famous Chinese chemist and educator. This journal is co-sponsored by the Chinese Chemical Society, the Institute of Chemistry, and the Chinese Academy of Sciences and is supervised by the China Association for Science and Technology. It is a core journal and is publicly distributed at home and abroad.
"Polymer Bulletin" is a monthly magazine with multiple columns, including a project application guide, outlook, review, research papers, highlight reviews, polymer education and teaching, information sharing, interviews, polymer science popularization, etc. The journal is included in the CSCD Chinese Science Citation Database. It serves as the source journal for Chinese scientific and technological paper statistics and the source journal of Peking University's "Overview of Chinese Core Journals."
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