In this study, different amounts of aluminum dross (Al-dross) powders were incorporated into polyoxymethylene (POM) by the melt-mixing method, and morphological, thermal, rheological, mechanical and dielectric properties of the obtained composite samples were investigated. So, it was aimed to develop value-added products and create an alternative utilization method for industrial waste that poses environmental risk and does not have a useful application area. The morphological analyses performed by scanning electron microscopy (SEM) showed that the Al-dross contained various inorganic components with different particle sizes such as Al₂O₃, NaCl. Moreover, no significant structural incompatibility between the POM and Al-dross was observed. In contrast, the SEM analyses showed non-coated filler particle surfaces, which were probably due to the breaking of NaCl particles during the extrusion process. In the differential scanning calorimetry (DSC) analysis, it was found that the effect of Al-dross addition on the crystallization temperature, amount of crystalline structure in the polymer phase or crystallization rate was limited. The rheological analyses showed that the Al-dross particles formed rheological percolated structures at an Al-dross ratio of 20% wt. In the dynamic mechanic analysis (DMA), it was observed that the modulus of elasticity (E') increased by approximately 40% and creep strain decreased by approximately 50% by the addition of Al-dross into the POM phase at the 40% in %wt. Finally, in the dielectric analyses carried out in the frequency range of 1–14 GHz by a vector network analyzer, it was concluded that incorporating Al-dross at 40% caused an increase of 1.5 and 3 times in real and imaginary part of the complex permittivity.

中文翻译：

---

评估铝渣填充聚甲醛 (POM) 复合材料的形态、流变、机械和介电性能

本研究通过熔融混合法将不同量的铝渣（Al-dross）粉末掺入聚甲醛（POM）中，并对所得复合材料样品的形态、热学、流变学、力学和介电性能进行了研究。因此，它旨在开发增值产品，并为具有环境风险且没有有用应用领域的工业废物创造一种替代利用方法。扫描电子显微镜 (SEM) 进行的形态分析表明，铝渣中含有多种不同粒径的无机成分，如 Al ₂ O ₃, 氯化钠。此外，没有观察到 POM 和 Al-dross 之间存在明显的结构不相容性。相比之下，SEM 分析显示未涂覆的填料颗粒表面，这可能是由于 NaCl 颗粒在挤出过程中的破裂造成的。在差示扫描量热法（DSC）分析中发现，添加铝渣对结晶温度、聚合物相中结晶结构的数量或结晶速率的影响是有限的。流变分析表明，铝渣颗粒在铝渣比例为 20% wt 时形成流变渗透结构。在动态力学分析 (DMA) 中，观察到弹性模量 ( E') 增加了大约 40% 并且蠕变应变减少了大约 50%，这是通过在 POM 相中添加 40%（重量百分比）的铝渣。最后，在通过矢量网络分析仪在 1-14 GHz 频率范围内进行的介电分析中，得出的结论是，在 40% 时加入铝渣会导致复合物的实部和虚部分别增加 1.5 倍和 3 倍。介电常数。