Abstract—

The aggregation process of 2D nanofillers (organoclay and graphene oxide (GO)) is studied within the framework of micromechanical models. The degree of aggregation of these nanofillers, expressed as the number of individual plates in one aggregate (tactoid), is determined by the ratio of the nominal moduli of elasticity of the nanofiller and the matrix polymer. It is found that increasing the first of these moduli leads to an increase in the degree of aggregation, whereas increasing the second one, leads to its reduction. This means that it is practically impossible to obtain exfoliated (separate) graphene plates in a polymer matrix. Both the studied polymer/2D nanofiller nanocomposites are reinforced with separate nanofiller aggregates, which is the optimal variant of reinforcing them.

中文翻译：

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聚合物纳米复合材料中二维纳米填料聚集规律

摘要-

在微机械模型框架内研究了二维纳米填料（有机粘土和氧化石墨烯（GO））的聚集过程。这些纳米填料的聚集程度，表示为一个聚集体（类晶团聚体）中单个板的数量，由纳米填料和基质聚合物的标称弹性模量之比决定。研究发现，增加第一个模量会导致聚集程度增加，而增加第二个模数会导致聚集程度减少。这意味着实际上不可能在聚合物基质中获得剥离（单独）的石墨烯板。所研究的聚合物/二维纳米填料纳米复合材料均采用单独的纳米填料聚集体进行增强，这是增强它们的最佳变体。