ABSTRACT

The most important reason why natural fibers are not sufficiently involved in applications is the large scattering of their properties. In addition, it is very difficult to find one kind of natural fiber which has perfect mechanical properties like synthetic fibers. Here, we aimed to find solutions by developing a hybrid composite according to the expectations in the field of application. With this method, desired mechanical properties can be designed, and the weak properties can be improved. To be able to examine this method, we used two different fibers which have different mechanical characteristics. The mechanical properties were measured with three-point bending and impact resistance tests. According to the results, the flexural strength of the jute-reinforced composites (JC) has been improved by 44–71% using luffa fiber hybridization method. On the other hand, it has been observed that the impact resistance of the same specimens of JC has been improved by 51–83%. These results revealed that it is possible to improve the mechanical properties of the composites with hybridization. In conclusion, our study shows that bio-composites can be designed according to the requirement of the application. Hence, the application areas of bio-composites can be widened with increased usage rates.

摘要

天然纤维没有充分参与应用的最重要原因是其性能的大分散。此外，很难找到一种像合成纤维一样具有完美力学性能的天然纤维。在这里，我们旨在通过根据应用领域的期望开发混合复合材料来寻找解决方案。使用这种方法，可以设计所需的机械性能，并可以改善弱性能。为了能够检验这种方法，我们使用了两种具有不同机械特性的不同纤维。机械性能通过三点弯曲和抗冲击测试来测量。结果表明，使用丝瓜纤维杂化方法，黄麻增强复合材料 (JC) 的抗弯强度提高了 44-71%。另一方面，据观察，JC 相同试样的抗冲击性提高了 51-83%。这些结果表明，可以通过杂化改善复合材料的机械性能。总之，我们的研究表明，可以根据应用要求设计生物复合材料。因此，生物复合材料的应用领域可以随着使用率的提高而扩大。