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首页> 美国卫生研究院文献>Polymers >Interfacial Compatibility Evaluation on the Fiber Treatment in the Typha Fiber Reinforced Epoxy Composites and Their Effect on the Chemical and Mechanical Properties
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Interfacial Compatibility Evaluation on the Fiber Treatment in the Typha Fiber Reinforced Epoxy Composites and Their Effect on the Chemical and Mechanical Properties

机译：香蒲纤维增强环氧树脂复合材料纤维处理的界面相容性评价及其对化学和机械性能的影响

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Natural fiber composites have been widely used for various applications such as automotive components, aircraft components and sports equipment. Among the natural fibers Typha spp have gained considerable attention to replace synthetic fibers due to their unique nature. The untreated and alkali-treated fibers treated in different durations were dried under the sun for 4 h prior to the fabrication of Typha fiber reinforced epoxy composites. The chemical structure and crystallinity index of composites were examined via FT-IR and XRD respectively. The tensile, flexural and impact tests were conducted to investigate the effect of the alkali treated Typha fibers on the epoxy composite. From the microscopy analysis, it was observed that the fracture mechanism of the composite was due to the fiber and matrix debonding, fiber pull out from the matrix, and fiber damage. The tensile, flexural and impact strength of the Typha fiber reinforced epoxy composite were increased after 5% alkaline immersion compared to untreated Typha fiber composite. From these results, it can be concluded that the alkali treatment on Typha fiber could improve the interfacial compatibility between epoxy resin and Typha fiber, which resulted in the better mechanical properties and made the composite more hydrophobic. So far there is no comprehensive report about Typha fiber reinforcing epoxy composite, investigating the effect of the alkali treatment duration on the interfacial compatibility, and their effect on chemical and mechanical of Typha fiber reinforced composite, which plays a vital role to provide the overall mechanical performance to the composite.
机译：天然纤维复合材料已广泛用于各种应用，例如汽车部件，飞机部件和运动器材。在天然纤维中，香蒲属植物因其独特的性质而引起人们对替代合成纤维的关注。在制造Typha纤维增强环氧复合材料之前，将在不同时间处理的未经处理和经碱处理的纤维在阳光下干燥4小时。分别通过FT-IR和XRD检查了复合材料的化学结构和结晶度指标。进行了拉伸，弯曲和冲击试验，以研究碱处理的香蒲纤维对环氧复合材料的影响。从显微镜分析中观察到，复合材料的断裂机理是由于纤维和基体剥离，纤维从基体中拉出以及纤维损坏。与未经处理的Typha纤维复合材料相比，碱性浸入5％后，Typha纤维增强环氧复合材料的拉伸强度，弯曲强度和冲击强度有所提高。从这些结果可以得出结论，对香蒲纤维进行碱处理可以改善环氧树脂和香蒲纤维之间的界面相容性，从而导致更好的机械性能并使复合材料更具疏水性。到目前为止，尚无关于香蒲纤维增强环氧复合材料的全面报道，没有研究碱处理时间对界面相容性的影响以及它们对香蒲纤维增强复合材料的化学和机械性能的影响，这对于提供整体机械性能起着至关重要的作用。对复合材料的性能。

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