棕榈叶茎-剑麻纤维增强聚合物混杂复合材料拉伸强度和冲击强度的试验研究

Experimental investigation on tensile strength and impact strength of palmyra palm leaf stalk - Sisal fiber reinforced polymer hybrid composite.

作者信息

Bekele Adugnaw Ayalew, Mekonnen Haymanot Takele, Yigezu Belete Sirahbizu, Nega Abyot Yassab

机构信息

Department of Mechanical Engineering, School of Mechanical and Chemical Engineering, Woldia Institute of Technology, Woldia University, Woldia, Ethiopia.

Department of Electrical and Computer Engineering, Institute of Technology, Debre Markos University, Debre Markos, Ethiopia.

出版信息

Heliyon. 2024 Oct 18;10(20):e39555. doi: 10.1016/j.heliyon.2024.e39555. eCollection 2024 Oct 30.

DOI:10.1016/j.heliyon.2024.e39555

PMID:39506941

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11538947/

Abstract

Natural fiber-reinforced polymer composites are the most widely used materials and preferable in terms of biodegradability, cost production, recyclability, and low density. The main aim of this study is to conduct an experimental investigation on tensile strength and impact strength of palmyra palm leaf stalk fiber (PLSF) and sisal fiber reinforced polymer hybrid composite. The composite material was fabricated using hand lay-up techniques. The working parameters are mass fraction ratio of PLSF/sisal fiber and volume fiber fraction with the matrix. Tensile strength and impact energy resistance tests were experimentally conducted according to the ASTM standard dimensions. The results revealed that the addition of sisal fiber to PLSF enhanced the tensile strength by 12.850 %, 26.540 %, and 30.630 % respectively compared to pure Palmyra palm leaf stalk fiber reinforced composite (PPFRC). Whereas, the addition of PLSF to sisal fiber improved the impact of energy by 20.980 %, 13.610 %, and 11.880 % compared to pure sisal fiber reinforced composite (PSFRC). The tensile strength with 20 % fiber volume fraction is improved by 53.996 % and 12.188 % compared to 10 % and 15 % of fiber respectively. The impact strength was also enhanced by 24.931 % and 10.030 % compared to 10 % and 15 % of volume fiber fraction respectively. The tensile strength and impact energy of the treated fiber composite increased by 62.243 % and 22.478 % respectively compared to the untreated hybrid Palmyra palm leaf stalk and sisal hybrid fiber reinforced composite (UHPSFRC). Generally, the HPSFRC-2 (Palmyra palm leaf stalk/sisal fiber) (P/S ratio 50/50 % ratio with 20/80 % ratio of fiber/matric percentage reinforced polymer hybrid composite) has good tensile strength and impact energy. Therefore, the mechanical property of the (Palm/Sisal) hybrid composite can be used for the manufacturing of the automotive interior parts like door panel, dash board, seat back, and automotive roof.

摘要

天然纤维增强聚合物复合材料是应用最为广泛的材料，在生物降解性、生产成本、可回收性和低密度方面具有优势。本研究的主要目的是对扇叶树头榈叶茎纤维（PLSF）和剑麻纤维增强聚合物混杂复合材料的拉伸强度和冲击强度进行实验研究。该复合材料采用手糊工艺制备。工作参数为PLSF/剑麻纤维的质量分数比以及纤维与基体的体积分数。按照美国材料与试验协会（ASTM）标准尺寸进行拉伸强度和抗冲击能量试验。结果表明，与纯扇叶树头榈叶茎纤维增强复合材料（PPFRC）相比，向PLSF中添加剑麻纤维后，拉伸强度分别提高了12.850%、26.540%和30.630%。而与纯剑麻纤维增强复合材料（PSFRC）相比，向剑麻纤维中添加PLSF后，冲击能量提高了20.980%、13.610%和11.880%。与纤维体积分数为10%和15%相比，纤维体积分数为20%时，拉伸强度分别提高了53.996%和12.188%。与纤维体积分数为10%和15%相比，冲击强度也分别提高了24.931%和10.030%。与未处理的扇叶树头榈叶茎和剑麻混杂纤维增强复合材料（UHPSFRC）相比，经处理的纤维复合材料的拉伸强度和冲击能量分别提高了62.243%和22.478%。总体而言，HPSFRC - 2（扇叶树头榈叶茎/剑麻纤维）（P/S比为50/50%，纤维/基体百分比为20/80%的增强聚合物混杂复合材料）具有良好的拉伸强度和冲击能量。因此，（扇叶树头榈/剑麻）混杂复合材料的力学性能可用于制造汽车内饰部件，如车门面板、仪表盘、座椅靠背和汽车车顶。