Graphene matrix formation in a natural rubber dispersoid
Graphene matrix formation in a natural rubber dispersoid
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DOI：
10.1038/s41428-022-00620-4
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发表时间：
2022-02
期刊：
影响因子：
2.8
通讯作者：
Minh Duc Pham;Quan Hai Nguyen;Q. T. Nguyen;Q. Cao;Nguyen Kim Nga;S. Kawahara;Ha Thu Nguyen
中科院分区：
文献类型：
--
作者：
Minh Duc Pham;Quan Hai Nguyen;Q. T. Nguyen;Q. Cao;Nguyen Kim Nga;S. Kawahara;Ha Thu Nguyen
本研究制备了天然橡胶不连续相(分散体)和石墨烯连续相(基质)的复合材料，并对其进行了表征。在氧化还原引发剂叔丁基氢过氧化氢和四乙烯五胺存在下，制备了石墨烯，并在胶乳阶段接枝到天然橡胶粒子上。用X射线衍射仪、透射电子显微镜和差示扫描量热仪对所得材料的结构和形貌进行了表征。研究了样品的力学和电磁屏蔽性能，并与石墨烯形成不连续相的天然橡胶/石墨烯共混物的屏蔽性能进行了比较。结果表明，次要成分石墨烯可以成功地形成基质，而主要成分天然橡胶起到分散体的作用。结果表明，以石墨烯为基质的天然橡胶的电磁屏蔽性能和力学性能均优于以石墨烯为不连续相的天然橡胶。天然橡胶性能的改善归功于石墨烯基质的形成。
In this study, a composite of a natural rubber (NR) discontinuous phase (dispersoid) and a graphene continuous phase (matrix) was prepared and characterized. Graphene was prepared and grafted onto NR particles in the latex stage in the presence of the redox initiatorstert-butylhydroperoxide and tetraethylene pentaamine. The structure and morphology of the resulting materials were characterized through XRD, TEM and DSC. The mechanical and electromagnetic shielding properties of the samples were investigated and compared with those of an NR/graphene blend in which graphene forms a discontinuous phase. The results show that graphene, which is the minor component, can successfully form a matrix and that NR, which is the major component, acts as a dispersoid. The electromagnetic shielding and mechanical properties of NR with a graphene matrix are found to be superior to that for NR with graphene as the discontinuous phase. The improvement in the NR performance is attributed to the formation of a graphene matrix.