In this study, the impact of natural fibers (NFs) on the mechanical, thermal and hydrodegradation behavior was assessed. Composites based on biobased high-density polyethylene were manufactured with a 40 wt% of wood flour, basalt fibers, flax fibers, and walnut shell flour. The results confirmed the reinforcing effect of NFs on mechanical properties, especially in relation to the stiffness of the composites. Significant improvement was visible in the case of composites with basalt fibers with about 600% and 156% improvements for Young's modulus and tensile strength, respectively. Moreover, to evaluate the viability of NFs as reinforcements, water absorption and its influence on mechanical properties were investigated. Unmodified polymer and composites with basalt fibers showed similar relationships – low water absorption. Composites reinforced with lignocellulosic fibers exhibited high water uptake and progressive deterioration of properties over time.

在这项研究中，评估了天然纤维（NFs）对机械，热和加氢降解行为的影响。基于生物基高密度聚乙烯的复合材料由40％的木粉，玄武岩纤维，亚麻纤维和胡桃壳粉制成。结果证实了NFs对机械性能的增强作用，特别是在复合材料的刚度方面。对于含玄武岩纤维的复合材料，其杨氏模量和拉伸强度分别提高了约600％和156％，这是明显的改善。此外，为了评估作为增强材料的NFs的可行性，研究了吸水率及其对机械性能的影响。未改性的聚合物和具有玄武岩纤维的复合材料显示出相似的关系–低吸水率。