Composite materials obtained with natural and sustainable fibers can be used successfully in many areas on their own. In recent years, high strength fibers such as hemp, sisal, linen, jute, wood sawdust, bamboo are more preferred in composite materials. In this study, the effect of hornbeam sawdust size on the mechanical properties of the polyethylene was investigated. For this purpose, different sizes of hornbeam sawdust were added to the polyethylene. Hornbeam sawdust were added to polyethylene matrix with four different weight ratios (5% 10%, 15% and 20%) via extrusion method. Test samples were prepared out of those mixtures by injection molding. Tensile, Izod impact, hardness tests were performed on the samples. Elastic modulus increased with the increasing hornbeam sawdust content. However, elongation at break and Izod impact strength values decreased. Modulus of elasticity, tensile strength, elongation at break and Izod impact strength values decreased with the increasing hornbeam sawdust size. The morphology of composite samples was examined by scanning electron microscopy. The results show that the hornbeam sawdust can be used as filler in polymer based composites.

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角木屑的大小对聚乙烯复合材料力学性能的影响

用天然纤维和可持续纤维制成的复合材料可以单独在许多领域成功使用。近年来，在复合材料中更优选高强度纤维，例如大麻，剑麻，亚麻，黄麻，木屑，竹子。在这项研究中，研究了角木屑的大小对聚乙烯的机械性能的影响。为此，将不同尺寸的角木屑加入到聚乙烯中。通过挤压法将角树木屑以四种不同的重量比（5％，10％，15％和20％）添加到聚乙烯基体中。通过注塑从这些混合物中制备测试样品。对样品进行了拉伸，艾佐德冲击，硬度测试。弹性模量随角木锯末含量的增加而增加。然而，断裂伸长率和艾佐德冲击强度值降低。弹性模量，拉伸强度，断裂伸长率和悬臂梁式冲击强度值随角木锯末尺寸的增加而降低。通过扫描电子显微镜检查复合样品的形态。结果表明，角树木屑可用作聚合物基复合材料的填料。