Mechanical, thermal and interfacial properties of Carbon-Kevlar reinforced epoxy composite

材料工程研究(英文) Pub Date : 2019-05-31 DOI:10.25082/MER.2019.02.004

Milon Hossain, Kamrun Keya, Nasrin A. Kona, N. Islam, F. A. Koly, M. A. Khan, Abu Bakar Siddiquee, J. Mahmud, R. Khan

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Abstract

Twill woven Carbon-Kevlar (CK) fabric was reinforced in epoxy matrix by conventional hand lay-up process. The fabric weight fraction in the composites was kept around 58% and stacking sequence was varied from single to five plies. Tensile test was performed and the fracture surface after tensile test was evaluated by scanning electron microscope (SEM). The test result revealed that the tensile properties are strongly dependent on the number of plies. Three point flexural test of the composite was also carried and an increasing trend was observed. Maximum impact energy was recorded for CK3 sample by 202.7 KJ/m2. Thermal stability of the composite was studied via the thermo gravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FT-IR) result show interaction between fiber and matrix material. Finally, CK fabric reinforced epoxy-based composites showed balanced and tailor-able mechanical properties by varying the number of plies, suitable for desired applications in many areas including building, construction, marine, automotive, etc.

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碳-芳纶增强环氧树脂复合材料的力学、热学和界面性能

采用传统的手工叠层工艺，在环氧树脂基体中对斜纹碳纤维（CK）织物进行了增强处理。复合材料中的织物重量分数保持在58%左右，堆叠顺序从单层到五层不等。进行拉伸试验，并通过扫描电子显微镜（SEM）评价拉伸试验后的断裂表面。试验结果表明，拉伸性能在很大程度上取决于帘布层的数量。还对复合材料进行了三点弯曲试验，并观察到了增加的趋势。CK3样品的最大冲击能量记录为202.7 KJ/m2。通过热重分析（TGA）和傅立叶变换红外光谱（FT-IR）研究了复合材料的热稳定性。结果表明，纤维与基体材料之间存在相互作用。最后，CK织物增强环氧基复合材料通过改变层数显示出平衡和可定制的机械性能，适用于建筑、建筑、海洋、汽车等许多领域的预期应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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材料工程研究(英文)

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