A series of polycarbonate (PC)/acrilonitrile butadiene rubber (NBR)/multi-wall carbon nanotube (MWCNT) nanocomposites were prepared via melt compounding in an internal mixer. The effect of the MWCNT content on the morphology and the thermal and mechanical properties of the prepared nanocomposites were studied. The morphologies of the samples were investigated by field-emission scanning electron microscopy (FESEM) and the thermal properties by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The tensile mechanical results of the nanocomposites showed a decrease in elongation at break with an increase of only 2 wt% of MWCNT content in the PC/NBR blends, and an increasing value in elastic modulus and tensile strength of the nanocomposites. The FESEM images showed that the MWCNTs had good affinity with the polymers and no compatibilizer was needed for making the nanocomposites. The DSC and TGA results showed an increase in thermal stability with addition of MWCNTs because of the more thermally stable carbon nanotubes particles which was uniformly dispersed within the nanocomposites.

通过在内部混合器中熔融混合制备了一系列聚碳酸酯（PC）/腈腈丁二烯橡胶（NBR）/多壁碳纳米管（MWCNT）纳米复合材料。研究了碳纳米管含量对制备的纳米复合材料的形貌以及热力学性能的影响。通过场发射扫描电子显微镜（FESEM）研究样品的形态，并通过热重分析（TGA）和差示扫描量热法（DSC）研究热性能。纳米复合材料的拉伸力学结果表明，断裂伸长率降低，PC / NBR共混物中的MWCNT含量仅增加2 wt％，纳米复合材料的弹性模量和拉伸强度增加。FESEM图像表明，MWCNT与聚合物具有良好的亲和力，并且不需要增容剂来制备纳米复合材料。DSC和TGA结果表明，添加MWCNT增加了热稳定性，这是因为更热稳定的碳纳米管颗粒均匀地分散在纳米复合物中。