Bamboo flour (BF) was modified with mussel-inspired polydopamine adhesive coatings to achieve better compatibility with high-density polyethylene (HDPE) in BF/HDPE composites. Polydopamine was synthesized from dopamine by using various oxidants, e.g., O₂, CuSO₄, NaIO₄, (NH₄)₂S₂O₈, and FeCl₃. Modification improved physicochemical features of BF. The BF with O₂-oxidized polydopamine showed the largest increase in surface energy and thermal degradation peak temperature. The greatest increase in wettability, surface roughness, and specific surface area was observed for BF modified with (NH₄)₂S₂O₈-, CuSO₄-, and NaIO₄-oxidized polydopamine, respectively. Due to the enhanced BF-HDPE interaction, composites made from modified BF provided better physicomechanical properties in comparison to composites prepared with unmodified BF. The composites prepared with O₂-oxidized polydopamine presented the best internal adhesion, water resistance, mechanical properties, and the highest glass transition temperature. The highest heat distortion temperature and thermal degradation activation energy appeared in composites with NaIO₄-oxidized polydopamine. Composites with (NH₄)₂S₂O₈-oxidized polydopamine possessed the highest melting peak temperature. Overall, O₂-oxidized polydopamine was considered the most suitable for compatibilizing composites BF/HDPE.

竹粉 (BF) 用受贻贝启发的聚多巴胺粘合剂涂层改性，以在 BF/HDPE 复合材料中实现与高密度聚乙烯 (HDPE) 更好的相容性。聚多巴胺是由多巴胺通过使用各种氧化剂合成的，例如，O ₂、CuSO ₄、NaIO ₄、(NH ₄ ) ₂ S ₂ O ₈和 FeCl ₃。改性改善了 BF 的理化特性。具有 O ₂氧化聚多巴胺的 BF显示出最大的表面能增加和热降解峰值温度。对于用 (NH ₄) ₂ S ₂ O ₈ -、CuSO ₄ - 和 NaIO _{4 -}氧化的聚多巴胺，分别。由于 BF-HDPE 相互作用增强，与未改性 BF 制备的复合材料相比，由改性 BF 制成的复合材料具有更好的物理机械性能。用O ₂氧化聚多巴胺制备的复合材料具有最佳的内附着力、耐水性、机械性能和最高的玻璃化转变温度。最高的热变形温度和热降解活化能出现在含有 NaIO ₄氧化聚多巴胺的复合材料中。(NH ₄ ) ₂ S ₂ O的复合材料_8-氧化聚多巴胺具有最高的熔融峰温度。总体而言，O ₂氧化的聚多巴胺被认为最适合于相容复合材料 BF/HDPE。