A comparative study of morphology and properties of poly(butylene terephthalate)/carbon nanotubes (PBT/CNTs) nanocomposites with non-reactive and reactive elastomers was comprehensively performed. The carboxyl-functionalized CNTs showed uniform dispersion and formed an interconnecting network structure at relatively high content in both nanocomposites. However, the location of CNTs and the resulting morphology were different in these two nanocomposites as a result of chemical interactions between the reactive elastomer and functionalized CNTs. Evaluation of mechanical performance demonstrated that CNTs enhanced the tensile strength and modulus of both nanocomposites. However, the incorporation of CNTs did not enhance the toughness of the two nanocomposites, although elastomer particle size decreased in the nanocomposites with the non-reactive elastomer. The volume resistivity of both nanocomposites was extremely reduced with CNTs, but the volume resistivity of the nanocomposites with the non-reactive elastomer decreased more due to the more significant volume exclusion effect of the non-reactive elastomer. With the addition of a reactive elastomer and CNTs, electrical conductive PBT nanocomposites with balanced toughness–rigidity were obtained.

中文翻译：

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具有非反应性和反应性弹性体的聚对苯二甲酸丁二醇酯/碳纳米管纳米复合材料的比较研究：形态和性能

全面进行了具有非反应性和反应性弹性体的聚对苯二甲酸丁二酯/碳纳米管（PBT / CNTs）纳米复合材料的形貌和性能比较研究。羧基官能化的CNT表现出均匀的分散性，并在两种纳米复合材料中以相对较高的含量形成了互连网络结构。然而，由于活性弹性体和功能化的CNT之间的化学相互作用，在这两种纳米复合材料中CNT的位置和所产生的形态是不同的。机械性能的评估表明，CNT增强了两种纳米复合材料的拉伸强度和模量。但是，CNT的加入并不能提高两种纳米复合材料的韧性，尽管在具有非反应性弹性体的纳米复合材料中，弹性体的粒径减小了。CNTs大大降低了两种纳米复合材料的体积电阻率，但是由于非反应性弹性体具有更显着的体积排他作用，具有非反应性弹性体的纳米复合材料的体积电阻率下降得更多。通过添加反应性弹性体和CNT，可以获得具有平衡的韧性和刚度的导电PBT纳米复合材料。