The Hybridization Effects of Glass and Carbon Fibers on the Mechanical Properties of Kenaf Mat/Epoxy Composites

ABSTRACT

Kenaf mat/epoxy composite possesses low mechanical properties. The investigation examined the hybridization impact on the mechanical performance of kenaf mat/carbon/epoxy and kenaf mat/glass/epoxy hybrid composites. Pure and hybrid composites were fabricated using the vacuum-assisted resin infusion method. Density, tensile, flexural, interlaminar shear, and fracture toughness (Mode II) properties were tested according to the ASTM standards. The results showed that density increased around 10% for kenaf mat/carbon/epoxy hybrid and 29% for kenaf mat/glass/epoxy hybrid compared to pure kenaf mat/epoxy composites. Kenaf mat/carbon/epoxy hybrid composites displayed approximately 529%, 497%, 512%, 1055%, 272%, and 443% improvement in the tensile strength, tensile modulus, flexural strength, flexural modulus, interlaminar shear strength (ILSS), and fracture toughness, respectively, compared to the pure kenaf mat/epoxy composite. Kenaf mat/glass/epoxy hybrid composites displayed approximately 467%, 275%, 405%, 413%, 232%, and 366% improvement in the tensile strength, tensile modulus, flexural strength, flexural modulus, ILSS, and fracture toughness, respectively, compared to the pure kenaf mat/epoxy composite. Although the carbon fiber volume fraction was the lowest (17.23%) in hybrid kenaf mat/carbon/epoxy composites compared to glass fiber (24.83%) in hybrid kenaf mat/glass/epoxy composites, the tensile, flexural, and interlaminar shear performance was higher in hybrid kenaf mat/carbon/epoxy composites than hybrid kenaf mat/glass/epoxy composites.

摘要

红麻纤维毡/环氧复合材料具有较低的力学性能. 研究考察了杂化对红麻纤维毡/碳/环氧和红麻纤维毯/玻璃/环氧杂化复合材料力学性能的影响. 采用真空辅助树脂灌注法制备了纯复合材料和混杂复合材料. 根据ASTM标准测试密度、拉伸、弯曲、层间剪切和断裂韧性 (模式II) 特性. 结果表明, 与纯红麻纤维毡/环氧树脂复合材料相比, 红麻纤维垫/碳/环氧树脂混合材料的密度增加了约10%, 红麻毡/玻璃/环氧树脂混杂材料的密度提高了29%. 与纯红麻纤维毡/环氧树脂复合材料相比, 红麻纤维席/碳/环氧树脂混杂复合材料的拉伸强度、拉伸模量、弯曲强度、弯曲模量、层间剪切强度和断裂韧性分别提高约529%、497%、512%、1055%、272%和443%. 与纯红麻纤维毡/环氧树脂复合材料相比, 红麻纤维席/玻璃/环氧复合材料的拉伸强度、拉伸模量、弯曲强度、弯曲模量、层间剪切强度和断裂韧性分别提高了467%、275%、405%、413%、232%和366%. 虽然在混合红麻纤维毡/碳/环氧复合材料中, 碳纤维体积分数最低 (17.23%), 而在混合红棉纤维毡/玻璃/环氧复合物中, 玻璃纤维体积分数为24.83%, 但混合红麻毡/碳-环氧复合材料的拉伸、弯曲和层间剪切性能高于混合红麻/玻璃/环氧复合材料.

KEYWORDS:

• Natural fiber
• polymer composites
• mat kenaf
• hybrid
• mechanical performance

关键词:

• 关键词 天然纤维
• 聚合物复合材料
• 麻红麻
• 混合的
• 机械性能

Acknowledgments

The authors thankfully acknowledge the support of Advanced and Functional Materials (AFM), Centre of Corrosion Research (CCR), and Universiti Teknologi PETRONAS (via the graduate assistantship scheme).

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the international collaborative research fund (015MEO-208).