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首页> 外文期刊>Journal of Applied Polymer Science >Morphological Evolution and Properties of Thermoplastic Vulcanizate/Organoclay Nanocomposites
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Morphological Evolution and Properties of Thermoplastic Vulcanizate/Organoclay Nanocomposites

机译：热塑性硫化橡胶/有机粘土纳米复合材料的形态演变和性能

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摘要

Nanocomposites composed of organoclay and thermoplastic vulcanizates (TPVs) based on uncompatibilized or compatibilized polypropylene (PP)/ethylene–propylene–diene rubber (EPDM) blends were prepared in this study. The morphology of the nanocomposites was studied with wide-angle X-ray diffraction and transmission electron microscopy, which suggested that the addition of the compatibilizer played a key role in determining the morphology of the composites because of their interaction with the clay surface. Scanning electron microscopy study indicated the changes in the morphology of the rubber particles. Dynamic mechanical analysis was also applied to the analysis of these phenomena. Moreover, for nanocomposites with uncompatibilized PP/EPDM blends as the matrix, the samples showed tensile enhancement compared with neat TPV. Although the addition of the compatibilizer changed tensile properties of the composites in a rather different trend, the tensile modulus increased dramatically when the compatibilizer was added.
机译：本研究制备了基于不相容或不相容聚丙烯（PP）/乙烯-丙烯-二烯橡胶（EPDM）共混物的有机粘土和热塑性硫化橡胶（TPV）组成的纳米复合材料。用广角X射线衍射和透射电子显微镜研究了纳米复合材料的形貌，这表明添加相容剂在决定复合材料的形貌方面起着关键作用，因为它们与粘土表面相互作用。扫描电子显微镜研究表明橡胶颗粒形态的变化。动态力学分析也被应用于这些现象的分析。此外，对于以不相容的PP / EPDM共混物为基质的纳米复合材料，与纯净的TPV相比，样品的拉伸强度有所提高。尽管添加增容剂以不同的趋势改变了复合材料的拉伸性能，但是当添加增容剂时，拉伸模量急剧增加。

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