Simulation and characterization of Co3O4/carbon nanotube-filled PVC nanocomposites for medium-voltage cable applications

IF 3.1 3区化学 Q2 POLYMER SCIENCE Polymer Bulletin Pub Date : 2024-08-02 DOI:10.1007/s00289-024-05435-2

Sheikha A. Alkhursani, N. Aldaleeli, A. M. Elbasiony, Mohamed Mohamady Ghobashy, Mohamed Madani, Samera Ali Al-Gahtany, Ahmed Zaher, A. I. Sharshir

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Abstract

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.

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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

本研究探讨了电场分布的模拟以及 Co3O4/碳纳米管（CNT）填充聚氯乙烯（PVC）纳米复合材料在中压电缆中的潜在应用。在聚氯乙烯基体中加入 Co3O4 纳米颗粒和不同浓度的碳纳米管（按重量计分别为 0、0.1、0.15、0.20 和 0.25%）制备了纳米复合材料。紫外可见光谱显示，PVC/Co3O4 + 0.25% CNT 纳米复合薄膜的吸收边为 3.75 eV，直接带隙为 5.15 eV，乌巴赫尾能为 0.4594 eV，碳簇参数为 44.617。与纯 Co3O4 样品相比，CNT 的加入提高了交流电导率、介电常数和介电损耗。PVC/Co3O4 + 0.25% CNT 纳米复合材料的交流电导率最高（7.46 × 10-4 S/m）。COMSOL 多物理场仿真研究了 PVC 和 PVC/Co3O4 + 0.25% CNT 纳米复合材料制成的中压电缆中的电场分布。模拟结果表明，由于 Co3O4 纳米粒子和 CNT 的存在，纳米复合材料电缆中的电场分布比纯 PVC 电缆更均匀。这项研究的新颖之处在于提高了中压电缆应用中电场分布的均匀性。

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来源期刊

Polymer Bulletin 化学-高分子科学

CiteScore

6.00

自引率

6.20%

发文量

审稿时长

5.5 months

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."