Natural fibre-based polymer nanocomposites have played an essential role in many industry domains for four to five years because of their strong mechanical and physical qualities. The primary goal of this research is to establish the mechanical and morphological properties of nanocomposite materials in natural environments. Flax fibre was employed as a reinforcement, nanographene powder was used as a filler, and epoxy resin was used as a matrix material to achieve the goals above, keeping the following restrictions in mind: (i) fibre length (15, 30 and 45 mm), (ii) fibre content (10, 15 and 20 mm), and (iii) wt.% of nanofiller (2.5, 5 and 7.5 wt.%). The composite materials were laminated using the compression moulding process per the Taguchi L₉ design. The mechanical characteristics of the material, such as flexural, tensile, and impact properties, were examined according to ASTM standards. The mechanical characteristics of combinations A2, B2, and C2 are the best when compared to other combinations. The graphene-based nanocomposites revealed that 2.5 wt.% graphene contributes 33.08% of mechanical properties, the 5 wt.% graphene contributes 36.4%, and the 7.5 wt.% graphene contributes 30.53%. Including 5 wt.% graphene content provides the highest mean values of mechanical strength like 36.59 MPa tensile, 40.25 MPa flexural, and 31.68 kg/m² of impact. Scanning electron microscopy (SEM) images of the cracked specimens were used better to understand the failure process of composites during mechanical testing.

中文翻译：

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机械性能对亚麻和石墨烯基生物纳米复合材料纤维添加的影响

基于天然纤维的聚合物纳米复合材料由于其强大的机械和物理特性，已在许多工业领域发挥了重要作用四到五年。这项研究的主要目标是确定纳米复合材料在自然环境中的机械和形态特性。亚麻纤维用作增强材料，纳米石墨烯粉末用作填料，环氧树脂用作基体材料以实现上述目标，同时牢记以下限制：(i) 纤维长度（15、30 和 45 毫米） )，(ii) 纤维含量（10、15 和 20 毫米），和 (iii) 纳米填料的重量百分比（2.5、5 和 7.5 重量%）。复合材料采用 Taguchi L _{9的压缩成型工艺进行层压}设计。根据 ASTM 标准检查了材料的机械特性，例如弯曲、拉伸和冲击性能。与其他组合相比，组合 A2、B2 和 C2 的机械特性最好。基于石墨烯的纳米复合材料显示，2.5 wt.% 的石墨烯贡献了 33.08% 的机械性能，5 wt.% 的石墨烯贡献了 36.4%，7.5 wt.% 的石墨烯贡献了 30.53%。包括 5 wt.% 的石墨烯含量提供最高的机械强度平均值，如 36.59 MPa 拉伸、40.25 MPa 弯曲和 31.68 kg/m ²冲击。使用破裂试样的扫描电子显微镜 (SEM) 图像可以更好地了解复合材料在机械测试过程中的失效过程。