Multiwalled carbon nanotubes (MWCNTs), functionalized carbon nanotubes (FCNTs) and graphene oxide-carbon nanotube (GCNTs) hybrid Bucky paper (BP) reinforced acrylonitrile-butadiene-styrene (ABS) composites are prepared via vacuum filtration followed by hot compression molding. The nanomechanical, electrical and thermal properties of these BP reinforced ABS composites are studied. The nanoindentation hardness and elastic modulus of GCNTs-ABS hybrid composites reached to 389.98±91.79 MPa and 7669.6±1179.12 MPa respectively. Other nanomechanical parameters such as plastic index parameter, elastic recovery, the ratio of residual displacement after load removal and displacement at maximum load are also investigated. The improved nanomechanical properties are correlated with Raman spectroscopy and scanning electron microscopy (SEM). It is found that GCNTs and their composites showed the higher value of defect density. The maximum value of defect density range for GCNTs and GCNTs-ABS is (297.4 to 159.6) and (16.0 to11.6), respectively. The higher defect density of GCNTs indicates that the interfacial interaction between the ABS, which was further correlated with electrical and thermal properties. Additionally, the through-plane electrical conductivities of MWCNTs, FCNTs and GCNTs based ABS composites were 6.5±0.6, 4.5±0.7 and 6.97±1.2 S/cm respectively and thermal conductivities of MWCNTs, FCNTs and GCNTs reinforced ABS composites; 1.80, 1.70 and 1.98 W/mK respectively. These GCNTs-ABS composites with this value of thermal conductivity can be used in various applications of efficient heat dissipative materials for electronic devices.

多壁碳纳米管（MWCNTs），功能化碳纳米管（FCNTs）和氧化石墨烯-碳纳米管（GCNTs）杂化Bucky纸（BP）增强的丙烯腈-丁二烯-苯乙烯（ABS）复合材料是通过真空过滤然后热压成型制备的。研究了这些BP增强ABS复合材料的纳米力学，电学和热学性能。GCNTs-ABS杂化复合材料的纳米压痕硬度和弹性模量分别达到389.98±91.79 MPa和7669.6±1179.12 MPa。还研究了其他纳米力学参数，例如塑性指数参数，弹性回复率，载荷去除后的残余位移比以及最大载荷下的位移。改善的纳米力学性能与拉曼光谱和扫描电子显微镜（SEM）相关。发现GCNT及其复合材料显示出更高的缺陷密度值。GCNT和GCNT-ABS的缺陷密度范围的最大值分别为（297.4至159.6）和（16.0至11.6）。GCNT的较高缺陷密度表明ABS之间的界面相互作用与电学和热学性质进一步相关。另外，基于MWCNTs，FCNTs和GCNTs的ABS复合材料的全平面电导率分别为6.5±0.6、4.5±0.7和6.97±1.2 S / cm，而MWCNTs，FCNTs和GCNTs增强的ABS复合材料的热导率；分别为1.80、1.70和1.98 W / mK。具有此热导率值的这些GCNTs-ABS复合材料可用于电子设备的高效散热材料的各种应用中。