https://orcid.org/0000-0001-5348-5740
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ABSTRACT
Owing to the recent trend and increasing awareness toward sustainable product design, natural fiber-based materials are gaining a revival popularity to replace synthetic fiber in the composites industries, especially for automotive structural and semi-structural applications. In this work, natural fibers bilayer hybrid composites were fabricated by hand-lay-up technique by reinforcing oil palm empty fruit bunch (EFB) and kenaf fiber mats with epoxy matrix. Experiments were carried out to study the effect of hybridizing of oil palm EFB-reinforced kenaf fiber on mechanical properties. Bilayer hybrid composites were prepared by hybridizing oil palm EFB and kenaf fiber by maintaining different weight ratios of oil palm EFB and kenaf fiber at 4:1, 1:1, and 1:4, with total fiber loading at 50% by weight. Results showed that the tensile and flexural properties improved substantially on increasing the content of kenaf fiber to oil palm EFB composites, whereas the impact properties of pure EFB composite was much higher than those of hybrid composites. The fracture surface morphology of tensile samples of the composites was determined using scanning electron microscopy (SEM).
摘要
由于最近的趋势和日益意识到可持续产品设计，天然纤维为基础的材料正在获得复兴流行，以取代合成纤维在复合材料行业，特别是汽车结构和半结构应用。本工作采用手工铺层技术，通过对油棕空果束（EFB）和红麻纤维毡进行环氧树脂基体增强，制备出天然纤维双层混杂复合材料。研究红麻纤维负载对油棕空腹团纤维增强环氧复合材料力学性能和形态性能的影响。将油棕空果皮束和红麻纤维杂交，保持油棕空果束和红麻纤维4:1、1:1、1:4的不同重量比，总纤维负载量为50%，制备出双层杂化复合材料。采用扫描电镜对复合材料拉伸试样的断口形貌进行了研究，结果表明：随着红麻纤维含量的增加，油棕空芯复合材料的拉伸性能和弯曲性能显著提高；纯空果团复合材料的PACT性能明显高于混杂复合材料，表明红麻纤维对油棕榈/环氧复合材料的抗弯性能和拉伸性能均有所提高，但冲击性能降低。