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首页> 外文期刊>Polymer Composites >Development and characterizations ofultra-highmolecular weightEPDM/PPbasedTPVnanocomposites for automotive applications
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Development and characterizations ofultra-highmolecular weightEPDM/PPbasedTPVnanocomposites for automotive applications

机译：用于汽车应用的高压重量重量/ PPBASEDTPVnanoChosites的开发和特征

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This research article reports, the preparation of thermoplastic vulcanizates (TPVs) and TPV nanocomposites (TPVNs) based on EPDM and polypropylene (PP). New generation ultra-high molecular weight EPDM (UHMW-EPDM) and PP with nano-fillers (nano-clay and nano-silica) and has been studied and characterized extensively typically for automotive applications. This special type of UHM-EPDM-based TPVs exhibit superior physico-mechanical properties over conventional EPDM-based TPVs and in the presence of nano-fillers, they show even better physical properties. The TPVNs were prepared with a fixed EPDM: PP ratio and the nano fillers were varied at different concentrations. The influence of nano-fillers, especially hectorite nano-clay and nano-silica has been first explored through physico-mechanical properties. Tensile strength, elongation at break, and modulus at various strain are improved for nano-filler filled TPVNs. We have observed that due to the incorporation of nano-fillers into the TPV matrix, swelling has been decreased. From morphology (AFM, SEM) study, it is observed that the fillers are well dispersed in the TPV matrix and nano-silica fillers are well dispersed than nano-clay (hectorite). Furthermore, small-angle X-ray scattering (SAXS) studies have also been pursued to get a better insight into the TPV system. These newly developed TPVs can be used as potential candidates for application in the automotive sector.
机译：本文报道了基于EPDM和聚丙烯（PP）的热塑性硫化胶（TPV）和TPV纳米复合材料（TPVN）的制备。新一代超高分子量三元乙丙橡胶（UHMW-EPDM）和含有纳米填料（纳米粘土和纳米二氧化硅）的聚丙烯已被广泛研究和表征，通常用于汽车应用。这种特殊类型的UHM-EPDM基TPV比传统的EPDM基TPV具有更好的物理机械性能，在纳米填料的存在下，它们表现出更好的物理性能。以固定的EPDM:PP比例制备TPVN，并在不同浓度下改变纳米填料。首次通过物理力学性能研究了纳米填料，尤其是锂辉石纳米粘土和纳米二氧化硅的影响。纳米填料填充的TPVN的拉伸强度、断裂伸长率和各种应变下的模量都有所提高。我们观察到，由于TPV基体中加入了纳米填料，溶胀度有所降低。从形貌（AFM、SEM）研究中可以看出，填料在TPV基体中分散良好，纳米二氧化硅填料比纳米粘土（锂云母）分散良好。此外，还进行了小角X射线散射（SAXS）研究，以更好地了解TPV系统。这些新开发的TPV可以作为潜在的候选产品应用于汽车行业。

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