An experimental study on tensile, flexural and impact properties of flax-basalt-glass reinforced epoxy hybrid composites is presented in this paper. Test specimens were fabricated by vacuum bagging process. The effects of reinforcement hybridization, fiber relative amounts and stacking sequence on the mechanical properties were investigated. Morphological studies of the fabricated and fractured surfaces through thickness were performed using scanning electron microscopy. Results showed that the developed hybrid composites display enhanced tensile, flexural and impact performance as compared with flax reinforced epoxy composite. The flexural strength increases when partial laminas from flax/epoxy laminate are replaced by basalt/epoxy and/or glass/epoxy laminas. Also, it is realized that incorporating high-strength fibers, i.e. glass or basalt, to the outer layers of the composite leads to higher flexural resistance, whilst the opposite was noticed for tensile properties. The fabricated hybrids were found to have economical and specific mechanical properties benefits. Fiber-relative amounts and stacking sequence have great effects on the mechanical properties. The mechanical properties of hybrid laminates are proven to be highly dependent on the position of the flax layers within the hybrid composite. The Hybridization with basalt and/or glass fibers is an effective method for enhancing the mechanical properties of flax/epoxy composites.

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基于亚麻、玄武岩和玻璃纤维的混合复合材料的力学特性

本文介绍了亚麻-玄武岩-玻璃增强环氧杂化复合材料的拉伸、弯曲和冲击性能的实验研究。试验样品采用真空袋装工艺制作。研究了增强杂化、纤维相对量和堆叠顺序对力学性能的影响。使用扫描电子显微镜对制造和断裂表面的整个厚度进行形态学研究。结果表明，与亚麻增强环氧树脂复合材料相比，开发的混合复合材料显示出增强的拉伸、弯曲和冲击性能。当亚麻/环氧树脂层压板的部分层压板被玄武岩/环氧树脂和/或玻璃/环氧树脂层压板代替时，弯曲强度会增加。此外，人们意识到加入高强度纤维，即玻璃或玄武岩，复合材料的外层导致更高的弯曲阻力，而拉伸性能则相反。发现制造的混合体具有经济和特定的机械性能优势。纤维相对量和堆叠顺序对机械性能有很大影响。事实证明，混合层压板的机械性能高度依赖于亚麻层在混合复合材料中的位置。与玄武岩和/或玻璃纤维的杂交是提高亚麻/环氧树脂复合材料力学性能的有效方法。纤维相对量和堆叠顺序对机械性能有很大影响。事实证明，混合层压板的机械性能高度依赖于亚麻层在混合复合材料中的位置。与玄武岩和/或玻璃纤维的杂交是提高亚麻/环氧树脂复合材料力学性能的有效方法。纤维相对量和堆叠顺序对机械性能有很大影响。事实证明，混合层压板的机械性能高度依赖于亚麻层在混合复合材料中的位置。与玄武岩和/或玻璃纤维的杂交是提高亚麻/环氧树脂复合材料力学性能的有效方法。