Multiwalled carbon nanotube-dispersed polyamide 66 nanocomposites (PA66/MWCNTs) were fabricated by melt-mixing pretreated MWCNTs and PA66, and the effects of pretreating techniques and types of pretreating materials were investigated. The non-fluffy method (NFM) and the dry-coating method (DCM) were studied to determine the effects of pretreatment techniques. The tensile properties were enhanced by the NFM. However, the DCM improved the stability of the process, which greatly decreased the coefficient of variation (CV) of the physical properties. To examine the effects of pretreatment materials, an epoxy modifier (bisphenol-F diglycidyl ether; DGEBF), a fluorosurfactant (FSO100), and a silane coupling agent ((3-aminopropyl)triethoxysilane; APTES) were evaluated. Compared with DGEBF, FSO100 and APTES noticeably improved the tensile properties. However, DGEBF provided highly stable physical properties. Furthermore, the relationship between the stability of physical properties and MWCNT dispersion was investigated. Dispersion was quantified in terms of the dispersion ratio, which was determined by Voronoi diagram analysis. The dispersion ratio was inversely correlated with the CVs of the physical properties.

通过预处理MWCNTs和PA66的熔融混合制备了多壁碳纳米管分散聚酰胺66纳米复合材料（PA66 / MWCNTs），研究了预处理技术的影响和预处理材料的类型。研究了非蓬松方法（NFM）和干涂方法（DCM），以确定预处理技术的效果。NFM增强了拉伸性能。但是，DCM改善了过程的稳定性，极大地降低了物理特性的变异系数（CV）。为了检查预处理材料的效果，评估了环氧改性剂（双酚F二缩水甘油醚； DGEBF），含氟表面活性剂（FSO100）和硅烷偶联剂（（3-氨基丙基）三乙氧基硅烷； APTES）。与DGEBF相比，FSO100和APTES显着改善了拉伸性能。但是，DGEBF提供了高度稳定的物理特性。此外，研究了物理性质的稳定性与MWCNT分散度之间的关系。根据分散率定量分散，该分散率通过Voronoi图分析确定。分散比与物理性能的CV成反比。