Polypropylene and poly(ethylene terephthalate) waste were blended with different types of nanoclay (cloisite Na+, cloisite 20A and CT4270) to understand the role of nanoclay in immiscible polymer blends. The blend morphology was investigated using scanning electron microscopy, the dispersion of the nanoclay was characterized using wide angle x-ray diffraction (WAXD) and rheology. WAXD results showed partial exfoliation for cloisite Na+ and intercalation for cloisite 20A and CT4270. It was predicted that cloisite Na + settled in the PET phase while cloisite 20A settled at the interface of PP and PET. Morphology analysis showed that increasing the concentration of nanoclay in the blend decreased the droplet size. The nanoclay was shown to inhibit coalescence of the droplets causing a decrease due to its rigidity.

中文翻译：

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纳米粘土在使用双螺杆挤出加工不混溶聚丙烯和聚对苯二甲酸乙二醇酯废料混合物中的作用

将聚丙烯和聚对苯二甲酸乙二醇酯废料与不同类型的纳米粘土（cloisite Na+、cloisite 20A 和 CT4270）混合，以了解纳米粘土在不混溶聚合物共混物中的作用。使用扫描电子显微镜研究共混物形态，使用广角 X 射线衍射 (WAXD) 和流变学表征纳米粘土的分散体。WAXD 结果显示 cloisite Na+ 部分剥落，而 cloisite 20A 和 CT4270 部分插层。预测 Cloisite Na + 沉降在 PET 相中，而 Cloisite 20A 沉降在 PP 和 PET 的界面上。形态分析表明，增加混合物中纳米粘土的浓度会减小液滴尺寸。纳米粘土被证明可以抑制液滴的聚结，由于其刚性而导致液滴的聚结减少。