Electrical and mechanical behaviors of rubber composites based on polar elastomers with incorporated Cu-based alloy

IF 3.1 3区 化学 Q2 POLYMER SCIENCE
Doaa S. Mahmoud, Amira Nassar, A. M. Moustafa, A. A. Ward, Wael S. Mohamed, Salwa H. El-Sabbagh
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引用次数: 0

Abstract

Dielectric elastomers with conducting inorganic fillers offer a wide range of uses, including capacitive energy storage, elastomer sensors, actuators, and many more. In this approach, low dielectric loss and high dielectric constant may be made possible by ternary composites that use metal alloy components as reinforcing fillers. Here, Cu-based alloy was added to acrylonitrile-butadiene rubber (NBR) to produce ternary rubber composites. Unfortunately, the Cu–Al–Zn alloy’s material incompatibility with the rubber matrix typically leads to phase separation, void formation, and particle aggregation, all of which have a dramatic negative impact on performance. Using 3-(trimethoxysilyl)propyl methacrylate as a coupling agent, Cu–Al–Zn alloy particles were uniformly dispersed onto the NBR rubber matrix through surface modification. By using scanning electron microscopy, the appropriate reinforcement of modified Cu-based alloy particles into NBR was carefully examined. The effect of modified Cu–Al–Zn alloy loading on the swelling behavior of the composite was also investigated. The findings show that the shape and dispersion state of modified Cu–Al–Zn alloy were important for the dielectric characteristics of the NBR compounds. By adding reinforced modified Cu-based alloy to the NBR matrix, mechanical characteristics were significantly improved. The uniform dispersion of modified Cu–Al–Zn alloy particles and strong interfacial compatibility with rubber matrix are the reasons for the outstanding performance of NBR composites, which suggests high-performance dielectric composite.

Abstract Image

基于加入铜基合金的极性弹性体的橡胶复合材料的电气和机械性能
带有导电无机填料的介电弹性体用途广泛,包括电容储能、弹性体传感器、致动器等。在这种方法中,使用金属合金成分作为增强填料的三元复合材料可以实现低介电损耗和高介电常数。在这里,铜基合金被添加到丙烯腈-丁二烯橡胶(NBR)中,以生产三元橡胶复合材料。遗憾的是,Cu-Al-Zn 合金与橡胶基体的材料不相容性通常会导致相分离、空洞形成和颗粒聚集,所有这些都会对性能产生极大的负面影响。使用 3-(三甲氧基硅基)丙基甲基丙烯酸酯作为偶联剂,通过表面改性将铜铝锌合金颗粒均匀地分散到丁腈橡胶基体上。利用扫描电子显微镜仔细研究了改性铜基合金颗粒在丁腈橡胶中的适当补强。此外,还研究了改性铜铝锌合金负载对复合材料溶胀行为的影响。研究结果表明,改性铜铝锌合金的形状和分散状态对丁腈橡胶复合物的介电特性非常重要。通过在丁腈橡胶基体中添加增强型改性铜基合金,力学性能得到了显著改善。改性 Cu-Al-Zn 合金颗粒的均匀分散性以及与橡胶基体的强界面相容性是丁腈橡胶复合材料性能优异的原因,这表明丁腈橡胶复合材料具有高性能介电特性。
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来源期刊
Polymer Bulletin
Polymer Bulletin 化学-高分子科学
CiteScore
6.00
自引率
6.20%
发文量
0
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."
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