High-density polyethylene (HDPE) was compounded with 3 wt% carbon nanotubes (CNTs). In order to simulate mechanical recycling, both the nanocomposite and neat HDPE were repeatedly extruded and subsequently analysed by tensile tests, Charpy impact strength, differential scanning calorimetry (DSC), oxidation induction time (OIT), Gel Performance Chromatography (GPC), Fourier Transform Infrared Spectroscopy (FTIR) and TEM After 10 cycles of extrusion, thermal, mechanical, and rheological tests did not reveal any significant degradation. In order to better study the effect of the CNTs, a large number of cycles were simulated by processing the materials for up to 200 min. After 200 min of processing, the neat HDPE was significantly degraded whereas the nanocomposite was almost unaffected.

高密度聚乙烯（HDPE）与3重量％的碳纳米管（CNT）混合在一起。为了模拟机械回收，将纳米复合材料和纯HDPE重复挤出，然后通过拉伸试验，夏比冲击强度，差示扫描量热法（DSC），氧化诱导时间（OIT），凝胶性能色谱（GPC），傅里叶变换进行分析红外光谱（FTIR）和TEM在挤出10个循环后，热，机械和流变学测试未发现任何明显的降解。为了更好地研究CNT的效果，对材料进行了长达200分钟的加工，模拟了许多循环。经过200分钟的处理后，纯净的HDPE明显降解，而纳米复合材料几乎不受影响。