Polyamide-6 (PA6)/silica (SiO₂) composites with different sizes and concentrations of SiO₂ nanoparticles were prepared via in situ anionic ring opening polymerization. An electron probe microanalyzer was used for visual examination to analyze the distribution of SiO₂ nanoparticles in PA6/SiO₂ composites. In addition, the thermal behavior of PA6/SiO₂ composites was evaluated using thermogravimetric analysis and differential scanning calorimetry. As a result, the SiO₂ nanoparticles were found to be well dispersed in the ϵ-caprolactam monomer with a watery viscosity. The sizes and the concentrations of the nanoparticles could affect both the polymerization and the crystallization behaviors of the composites.

通过原位阴离子开环聚合反应制备了具有不同粒径和浓度的SiO ₂纳米颗粒的聚酰胺6（PA6）/二氧化硅（SiO ₂）复合材料。使用电子探针显微分析仪进行目测，以分析SiO ₂纳米颗粒在PA6 / SiO ₂复合材料中的分布。此外，使用热重分析和差示扫描量热法评估了PA6 / SiO ₂复合材料的热行为。结果，发现SiO ₂纳米颗粒很好地分散在ϵ中。-己内酰胺单体，具有水粘性。纳米粒子的大小和浓度可以影响复合材料的聚合和结晶行为。