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首页> 外文期刊>The Journal of the Textile Institute >Influence of modified carbonate calcium nanoparticles on the mechanical properties of carbon fiber/epoxy composites
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Influence of modified carbonate calcium nanoparticles on the mechanical properties of carbon fiber/epoxy composites

机译：改性碳酸钙纳米颗粒对碳纤维/环氧树脂复合材料力学性能的影响

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摘要

Multiscale composites have been investigated by the addition of silanized carbonate calcium (CaCO3) as a secondary reinforcement into the matrix of carbon fiber/epoxy composites. The chemical modification of the CaCO3 nanoparticles was confirmed by Fourier-transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA). Mechanical properties of the specimens were investigated by means of tensile, flexural, and compressive measurements to study the effect of treated CaCO3 loading (0.5, 1, 3 and 5 wt.%) on their mechanical behavior. Experimental results showed that the tensile, flexural and compressive strengths of the specimen filled with 3 wt.% treated CaCO3 composite enhanced by 14%, 36%, and 30% respectively, compared with those of neat one. The highest improvements in the mechanical moduli were observed in the multiscale composite filled with 5 wt.% treated CaCO3. Also, the fracture surface of the specimens was further analyzed in detail.
机译：通过将硅烷化碳酸钙（CaCO3）作为辅助增强材料添加到碳纤维/环氧树脂复合材料的基质中，研究了多尺度复合材料。通过傅立叶变换红外光谱（FTIR）和热重分析（TGA）确认了CaCO3纳米颗粒的化学修饰。通过拉伸，挠曲和压缩测量研究样品的机械性能，以研究处理过的CaCO3含量（0.5、1、3和5 wt。％）对其机械性能的影响。实验结果表明，与纯净样品相比，填充3 wt％处理过的CaCO3复合材料的样品的拉伸强度，弯曲强度和压缩强度分别提高了14％，36％和30％。在填充有5重量％处理过的CaCO 3的多尺度复合物中观察到机械模量的最高改进。另外，进一步详细分析了试样的断裂面。

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