Flax/basalt/E-glass Fibers Reinforced Epoxy Composites with Enhanced Mechanical Properties

ABSTRACT

Mechanical properties of flax/basalt/E-glass fibers reinforced epoxy composites were studied in this paper. Vacuum bagging technique was adopted for the fabrication of hybrid composite laminates. The effects of fibers relative amounts and stacking sequence on the tensile, flexural and impact properties were investigated. Results showed that the developed hybrid composites display enhanced tensile, flexural, and impact performance as compared to flax fiber/epoxy composite. The tensile, flexural, and impact strengths increase when partial laminas from flax fiber/epoxy laminate are replaced by basalt and/or glass fiber reinforced epoxy laminas. Incorporating high strength fibers to the composite outer layers leads to improved flexural and impact resistances, whilst the opposite was noticed for tensile properties. The fabricated hybrids show economical and specific mechanical properties benefits. Fibers relative amounts and stacking sequence have noticeable effects on the studied mechanical properties.

抽象

研究了亚麻/玄武岩/ e -玻璃纤维增强环氧复合材料的力学性能. 采用真空袋装技术制备复合材料复合层板. 研究了纤维的相对数量和堆积顺序对拉伸、弯曲和冲击性能的影响. 结果表明:与亚麻纤维/环氧复合材料相比，复合材料的拉伸、弯曲和冲击性能均有显著提高. 用玄武岩和/或玻璃纤维增强环氧层压板取代部分亚麻纤维/环氧层压板后，其拉伸强度、抗弯强度和冲击强度均有所提高. 在复合材料外层中加入高强度纤维可提高抗弯和抗冲击性能，而抗拉性能则相反. 制备的杂种具有经济效益和特殊的力学性能. 纤维的相对数量和堆积顺序对所研究的力学性能有显著影响.

KEYWORDS:

• Hybrid composites
• natural fiber
• mechanical properties
• stacking sequence
• fibers relative amounts
• vacuum bagging

关键词:

• 混合复合材料
• 天然纤维
• 机械性能
• 叠层顺序
• 纤维相对量
• 真空装袋