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首页> 外文期刊>Journal of Applied Polymer Science >Simultaneous reduction and surface functionalization of graphene oxide and the application for rubber composites
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Simultaneous reduction and surface functionalization of graphene oxide and the application for rubber composites

机译：石墨烯氧化物的同时减少和表面官能化及橡胶复合材料的应用

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摘要

The simultaneous reduction and functionalization of graphene oxide (GO) was realized through a chemical grafting reaction with a functionalization agent N, N-bis(3-aminopropyl) methylamine (APMEL). The reduced and functionalized reduced GO (rGO-APMEL) sheets can be well dispersed in water without any added surfactant and the formed stable rGO aqueous dispersion can be kept for a long time, which can be used for the preparation of rubber-graphene (GE) composites by latex mixing. The electrostatic interaction between rGO-APMEL (positively charged) and natural rubber latex particles (negatively charged) leads to the formation of NR/rGO-APMEL composites with strong interaction. Compared with blank NR, the tensile strength and modulus for NR/rGO-APMEL increase with the rGO-APMEL loading. Especially, when the filler content is 5 phr, the tensile strength of NR/rGO-APMEL-5 increases by 32.7%, as a control the tensile strength of NR/GO-5 and NR/rGO-5 decrease by 20.1 and 15.6%, respectively. The entanglement-bound rubber tube model was used to analyze the reinforcing effect of GE on NR/rGO-APMEL nanocomposites at a molecular level. This study may provide us a novel approach to prepare well dispersed and exfoliated rGO-polymer nanocomposites. (C) 2018 Wiley Periodicals, Inc.
机译：通过与官能化剂N，N-双丙基）甲胺（APMEL）的化学接枝反应来实现石墨烯氧化物（GO）的同时还原和官能化。降低和官能化的降低的去（RGO-APMEL）片材可以很好地分散在没有任何添加的表面活性剂的水中，并且可以保持形成的稳定的RGO水性分散体长时间保持长时间，可用于制备橡胶 - 石墨烯（GE ）复合材料通过乳胶混合。 rgo-apmel（带正电荷）和天然橡胶胶乳颗粒（带负电）之间的静电相互作用导致形成具有强相互作用的Nr / Rgo-Apmel复合材料。与空白NR相比，随着RGO-Apmel负荷增加了Nr / Rgo-Apmel的拉伸强度和模量。特别是，当填充物含量为5phr时，Nr / Rgo-Apmel-5的拉伸强度增加32.7％，因为对照Nr / Go-5和Nr / Rgo-5的拉伸强度降低20.1和15.6％ ， 分别。使用缠结的橡胶管模型用于分析ME在NR / RGO-APMEL纳米复合材料上的CE的增强效果。该研究可以为我们提供一种新的方法来制备良好的分散和剥离的RGO-聚合物纳米复合材料。 （c）2018 Wiley期刊，Inc。

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