So far, the effect of graphene oxide (GO) and reduced graphene oxide (rGO) in rubber matrix has not been well established. The effects of graphene oxide (GO) and reduced graphene oxide (rGO) on the physical properties of polar acrylonitrile-butadiene rubber (NBR) and non-polar Ethylene-propylene-diene terpolymer rubber (EPDM) matrix have been investigated and their properties compared. NBR vulcanizates exhibited higher cure rates compared to the EPDM systems. Effective dispersion of the nanosheets within the different matrices was observed to be a reason for the improvement in properties, but the effective nanosheets-matrix interactions played a key role in reinforcing action. This was noticeable in the various properties (crosslinking density, tensile properties, and dynamical mechanical analysis) evaluated. Typically, the polar NBR matrix was observed to show about 461 and 405% higher interactions parameter with GO and rGO fillers (loaded from 0.1~1phr) than composites of EPDM based on Kraus model. While this present work has confirmed the significance of considering the polarities of graphene sheets or derivative graphene (GSD) and their respective polymers matrices for effective property enhancement for specific applications, it has also demonstrated the future prospects of rubber-graphene nanocomposites for several applications which include structural, barrier, and dielectric energy storage materials.

中文翻译：

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石墨烯对极性和非极性橡胶基质的影响

到目前为止，在橡胶基体中氧化石墨烯（GO）和还原氧化石墨烯（rGO）的作用尚未得到很好的确立。研究了氧化石墨烯（GO）和还原氧化石墨烯（rGO）对极性丙烯腈-丁二烯橡胶（NBR）和非极性乙烯-丙烯-二烯三元共聚物橡胶（EPDM）的物理性能的影响，并比较了它们的性能。与EPDM系统相比，NBR硫化橡胶具有更高的固化速率。观察到纳米片在不同基质中的有效分散是性能改善的原因，但是有效的纳米片-基质相互作用在增强作用中起关键作用。在评估的各种性能（交联密度，拉伸性能和动态力学分析）中，这是显而易见的。通常，观察到极性NBR基质与GO和rGO填料（负载0.1〜1phr）的相互作用参数比基于Kraus模型的EPDM复合物高约461％和405％。尽管这项工作已经证实了考虑石墨烯片或衍生石墨烯（GSD）的极性及其各自的聚合物基质对于特定应用的有效性能增强的重要性，但它也证明了橡胶-石墨烯纳米复合材料在多种应用中的未来前景，包括结构，势垒和介电储能材料。