Polypropylene (PP)/poly (ethylene-co-vinyl acetate) (EVA) nanocomposites were prepared with use of 3 wt% of organophilic halloysite nanotubes (Org-HNTs) and 3 types of compatibilizers in two steps. First, masterbatchs of EVA and the compatibilizers with the Org-HNT were prepared by two different preparation techniques; melt masterbatch (MM) and solution masterbatch (SM). The masterbatchs were then melt compounded with PP in the second step. Special attention was paid to effects of nature of compatibilizer and masterbatch preparation technique on morphology-mechanical property relationship for the composites. Poly(ethylene-vinyl acetate-carbon monoxide) (EVACO) and maleic anhydride grafted EVA (EVA-g-MA) were used as EVA-based compatibilizers which gave a homogeneous distribution of the nanotubes in the matrix and at the matrix-elastomer interphase as compared to maleic anhydride grafted PP (PP-g-MA). The both masterbatch techniques provided a core-shell morphology composed of nanotubes as core surrounded with elastomer phase as a shell, which led to higher toughness and impact resistance for the composites. Particularly, the EVACO compatibilizer provided the highest toughness, tensile modulus and impact resistance for 3% Org-HNT loaded nanocomposite produced with the SM technique. The same nanocomposite was found to act as an effective damper with an optimum modulus in a broad range of temperature and show a relatively higher creep resistance than the counterpart produced with the MMT technique. It also exhibited 66% higher scratch resistance compared to the PP/EVA blend, which makes it advantageous for the visible parts in automotive applications.

使用 3 wt% 的亲有机埃洛石纳米管 (Org-HNTs) 和 3 种类型的增容剂分两步制备聚丙烯 (PP)/聚（乙烯-共-醋酸乙烯酯）（EVA）纳米复合材料。首先，EVA母料和与Org-HNT的相容剂是通过两种不同的制备技术制备的；熔融母料 (MM) 和溶液母料 (SM)。然后在第二步中将母料与PP熔融混合。特别关注增容剂的性质和母料制备技术对复合材料形貌-力学性能关系的影响。聚（乙烯-醋酸乙烯酯-一氧化碳）（EVACO）和马来酸酐接枝的 EVA（EVA-g-MA）用作基于 EVA 的增容剂，使纳米管在基质中和基质-弹性体界面处均匀分布与马来酸酐接枝的 PP (PP-g-MA) 相比。这两种母料技术都提供了由纳米管作为核、由弹性体相作为壳包围的核壳形态，这导致复合材料具有更高的韧性和抗冲击性。特别是，EVACO 增容剂为使用 SM 技术生产的 3% Org-HNT 负载纳米复合材料提供了最高的韧性、拉伸模量和抗冲击性。发现相同的纳米复合材料作为一种有效的阻尼器，在很宽的温度范围内具有最佳模量，并且比使用 MMT 技术生产的对应物具有相对更高的抗蠕变性。与 PP/EVA 共混物相比，它还表现出高 66% 的耐刮擦性，这使其有利于汽车应用中的可见部件。