A facile and novel method has been developed for the preparation of highly thermo-conductive epoxy-based composites. The core-shell structure is formed with ‘functionalized carbon nanotubes (sCNTs)’ as shell encapsulated on the plasma-treated poly(methylmethacrylate) (pPMMA) as core. Effective thermo-conductive pathways are realized through core-shell structured bead-bead conduction throughout the composites. The core and shell have been characterized by Fourier transform infrared analysis and zeta potential measurement. The core-shell arrangement has visualized by scanning electron microscopy, which supported the expectation that the shell being positively charged would be assembled on the negatively charged core forming a highly conductive outer surface of the non-conductive core. The thermal conductivity of the epoxy composites increased from 0.19 W m⁻¹ K⁻¹ of neat epoxy to 0.96 W m⁻¹ K⁻¹ at 1 wt% of sCNTs in [email protected] beads. The method developed in this work introduces a new approach of using non-conductive polymer beads as constituting element in conductive framework formation.

已经开发了一种用于制备高导热性环氧基复合材料的简便新颖的方法。核-壳结构由“功能化碳纳米管（sCNTs）”作为壳形成，该壳封装在经过等离子处理的聚（甲基丙烯酸甲酯）（pPMMA）上作为核。有效的热传导途径是通过整个复合材料的核-壳结构的珠-珠传导来实现的。核和壳已经通过傅立叶变换红外分析和ζ电势测量进行了表征。核-壳结构通过扫描电子显微镜已经可视化，这支持了这样的期望：带正电的壳将组装在带负电的核上，从而形成非导电核的高导电性外表面。环氧复合材料的导热系数从0增加。在[电子邮件保护的]珠粒中，sCNT的1 wt％时，纯环氧树脂的^-1  K ^-1至0.96 W m ^-1  K ^-1。在这项工作中开发的方法引入了一种新方法，该方法使用非导电聚合物珠粒作为导电骨架形成中的构成元素。