Nanocomposites of high-density polyethylene (HDPE) modified with 0.2 phr graphene-zinc oxide (GN-ZnO) exhibited optimal mechanical properties and thermal stability. Two other nano-materials—GN and nano-ZnO—were also used to compare them with GN-ZnO. Increasing the content of GN-ZnO gradually enhanced the antibacterial and barrier properties, but the addition of 0.3 phr GN-ZnO led to agglomeration that caused defects in the nanocomposites. Herein, we investigated the antibacterial and barrier properties of HDPE nanocomposites infused with different nanoparticles (GN, ZnO, GN-ZnO) of varying concentrations. HDPE and the nanoparticles were melt-blended together in a Haake-Buchler Rheomixer to produce a new environment-friendly nano-material with improved physical and chemical properties. The following characterizations were conducted: tensile test, thermogravimetric analysis, morphology, differential scanning calorimetry, X-ray diffraction, antibacterial test, and oxygen and water vapor permeation test. The results showed that the crystallinity of HDPE was affected with the addition of GN-ZnO, and the nanocomposites had effective antibacterial capacity, strong mechanical properties, high thermal stability, and excellent barrier performance. This type of HDPE nanocomposites reinforced with GN-ZnO would be attractive for packaging industries.

用0.2 phr石墨烯-氧化锌（GN-ZnO）改性的高密度聚乙烯（HDPE）纳米复合材料表现出最佳的机械性能和热稳定性。还使用了另外两种纳米材料GN和纳米ZnO将它们与GN-ZnO进行了比较。GN-ZnO含量的增加逐渐增强了抗菌和阻隔性能，但添加0.3 phr GN-ZnO导致团聚，从而导致纳米复合材料的缺陷。在这里，我们研究了注入不同浓度的不同纳米颗粒（GN，ZnO，GN-ZnO）的HDPE纳米复合材料的抗菌和阻隔性能。HDPE和纳米颗粒在Haake-Buchler Rheomixer中熔融共混在一起，生产出一种具有改善的物理和化学特性的新型环保纳米材料。进行了以下表征：拉伸试验，热重分析，形态，差示扫描量热法，X射线衍射，抗菌测试以及氧气和水蒸气渗透测试。结果表明，加入GN-ZnO会影响HDPE的结晶度，且纳米复合材料具有有效的抗菌能力，较强的机械性能，较高的热稳定性和优异的阻隔性能。这种用GN-ZnO增强的HDPE纳米复合材料将对包装行业具有吸引力。高热稳定性和出色的阻隔性能。这种用GN-ZnO增强的HDPE纳米复合材料将对包装行业具有吸引力。高热稳定性和出色的阻隔性能。这种用GN-ZnO增强的HDPE纳米复合材料将对包装行业具有吸引力。