Characterization and Investigation of Tensile Properties of Kenaf Fiber Reinforced Polyester Composite Material

ABSTRACT

The kenaf fibers were used to reinforce composites with two structures: nonwoven and bulk fibers and with treated and untreated kenaf fiber. A series of tensile tests were conducted on these composites. The use of kenaf fibers allows having composite with improved mechanical properties compared to pure polyester composite. This increase reaches 56.15% in strength and 137.85% in strain when varying the fiber weight ratio and the reinforcement structure. The interested results for both tensile strength and strain are obtained for nonwoven structure made by untreated fiber. The statistical study reveals that the most influencing parameter in tensile properties was the reinforcement weight ratio. The optimum composite was obtained when using a nonwoven structure made with untreated fiber with 11.10% fiber weight ratio.

摘要

红麻纤维用于增强两种结构的复合材料: 非织造纤维和块状纤维, 以及经处理和未经处理的红麻纤维。对这些复合材料进行了一系列拉伸试验. 与纯聚酯复合材料相比, 红麻纤维的使用使复合材料具有更好的机械性能. 当改变纤维重量比和加固结构时, 强度增加56.15%, 应变增加137.85%. 对于未经处理的纤维制成的非织造结构, 获得了有关拉伸强度和应变的有趣结果. 统计研究表明, 对拉伸性能影响最大的参数是配筋率. 当使用未经处理的纤维(纤维重量比为11.10%) 制成的非织造结构时, 获得了最佳复合材料.

KEYWORDS:

• Key-words: tensile test
• kenaf fiber
• polyester
• composite
• nonwoven
• statistical analysis