Investigation of the Crack Propagation in the Graphene/Synthetic Rubber Nanocomposite Materials with DIC Technique

IF 1.4 4区 工程技术 Q3 ENGINEERING, CHEMICAL Periodica Polytechnica Chemical Engineering Pub Date : 2022-01-27 DOI:10.3311/ppch.19079
Hasan Kasım, A. Aldeen, Adem Onat, İ. Saraç, Barış Engin, M. Yazıcı
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引用次数: 1

Abstract

This study investigated the crack propagation behavior of the graphene-reinforced synthetic rubber matrix nanocomposite materials. Graphene-filled rubber conductive nanocomposites developed within the scope of this study were obtained in two stages using mechanical mixers. The relationship between crack propagation and electrical resistance change was investigated using single-edge notched specimens in a tensile tester. Digital image correlation (DIC) technique was used to observe the crack resistance function depending on the local strain distribution. The results from the tests were evaluated to define the relationship between the crack length, the amount of conductive filler, and the change in electrical resistance. The sharp edges of the graphene nanoplatelets negatively affected the fracture resistance of the samples. In addition, it was observed that even at low strain values, gaps were formed in the areas close to the crack tip. The three-dimensional transmission network formed by graphene nanoplatelets dispersed in the matrix improved the electrical conductivity properties of the nanocomposites, so the relationship between crack propagation and electrical resistance change was determined.
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石墨烯/合成橡胶纳米复合材料裂纹扩展的DIC研究
研究了石墨烯增强合成橡胶基纳米复合材料的裂纹扩展行为。在本研究范围内开发的石墨烯填充橡胶导电纳米复合材料是通过两个阶段的机械混合得到的。采用单刃缺口试样,研究了裂纹扩展与电阻变化的关系。采用数字图像相关(DIC)技术观察了随局部应变分布的抗裂函数。对试验结果进行了评估,以确定裂纹长度、导电填料的数量和电阻变化之间的关系。石墨烯纳米片的锋利边缘对样品的抗断裂性能有负面影响。此外,观察到即使在低应变值下,裂纹尖端附近的区域也会形成间隙。分散在基体中的石墨烯纳米片形成的三维传输网络提高了纳米复合材料的导电性,从而确定了裂纹扩展与电阻变化的关系。
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来源期刊
CiteScore
3.10
自引率
7.70%
发文量
44
审稿时长
>12 weeks
期刊介绍: The main scope of the journal is to publish original research articles in the wide field of chemical engineering including environmental and bioengineering.
期刊最新文献
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