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首页> 外文期刊>Journal of Applied Polymer Science >Nanoclay dispersion into a thermosetting binder using sonication and intensive mixing methods
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Nanoclay dispersion into a thermosetting binder using sonication and intensive mixing methods

机译：使用超声和强力混合方法将纳米粘土分散到热固性粘合剂中

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摘要

Suspensions of epoxy with 10% by weight of organomodified montmorillonite clay [Cloisite 30B], prepared by two different methods, viz. intensive batch mixing and sonication, were investigated. The characterization of linear viscoelastic material functions of the suspension using small-amplitude oscillatory shear during processing enabled the assessments of the dispersion capabilities of the two mixing methods. Thermal imaging was used to monitor the temperature distributions generated during mixing. Sonication was determined to be more effective in the dispersion of the clay into the epoxy resin than the intensive batch mixing process, as revealed by the significant increase of the dynamic properties upon sonication, which suggested that some degree of intercalation and exfoliation had taken place during sonication. The use of the linear viscoelastic material functions thus provided a relatively easy to implement method for the analysis of the dispersion effectiveness of the different processing methods and operating conditions.
机译：用两种不同方法制备的环氧悬浮液，其中含10％重量的有机改性蒙脱土[Cloisite 30B]。进行了密集的批量混合和超声处理。在加工过程中使用小振幅振荡剪切对悬浮液的线性粘弹性材料功能进行表征，从而可以评估两种混合方法的分散能力。使用热成像监测混合过程中产生的温度分布。经超声处理后，确定了在粘土中分散到环氧树脂中的强度要比进行强力的批量混合过程更有效，这表明超声处理后动态性能的显着提高表明在超声处理过程中发生了一定程度的嵌入和剥落声波处理。因此，线性粘弹性材料函数的使用提供了一种相对容易实现的方法，用于分析不同处理方法和操作条件的分散效果。

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