Effect of graphene oxide on tensile and flexural properties of carbon/glass hybrid fiber-reinforced polymer composite,Polymer Composites

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Effect of graphene oxide on tensile and flexural properties of carbon/glass hybrid fiber-reinforced polymer composite
Polymer Composites ( IF 4.8 ) Pub Date : 2021-08-16 , DOI: 10.1002/pc.26228
Hongwei Zhang ₁ , Xiaoping Gao ₁ , Hongxia Li ₂ , Wei Wu ₁ , Shiyuan Sun ₃

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In this article, we used the biaxial warp-knitted carbon/glass hybrid fibers as the reinforcement, the epoxy resin as the matrix, and the vacuum-assisted resin transfer-molding technique to prepare composite materials modified with different mass fractions of graphene oxide (GO) to investigate the influence of GO on the mechanical properties of carbon/glass hybrid fiber reinforced composites. The tensile and bending properties of the samples along the 0° and 90° directions were tested experimentally, and the macro- and micro-morphology characteristics of the fractured specimens were observed. The influence of GO modification on the strength and modulus of the composite material was analyzed. The results showed that GO modification improves the bonding strength of fiber/resin interface, tensile, and bending properties. Notably, when the filling content was 0.25 wt%, the tensile strength along the 0° and 90° directions increased by 8.97 and 4.78%, respectively. Similarly, the tensile modulus increased by 15.19 and 10.74%, respectively. Besides, the bending strength along the 0° and 90° directions increased by 10.70 and 9.60%, respectively, whereas the bending modulus increased by 9.62 and 15.20%, respectively. Therefore, the GO-modified carbon/glass hybrid fiber-reinforced composite materials exhibit improved mechanical properties, hence can be applied in wide range of applications.

中文翻译：

氧化石墨烯对碳/玻璃杂化纤维增强聚合物复合材料拉伸和弯曲性能的影响

在本文中，我们以双轴经编碳/玻璃杂化纤维为增强材料，环氧树脂为基体，采用真空辅助树脂传递模塑技术制备了不同质量分数的氧化石墨烯改性的复合材料。 GO) 以研究 GO 对碳/玻璃混合纤维增强复合材料的机械性能的影响。对试样沿0°和90°方向的拉伸和弯曲性能进行了实验测试，并观察了断裂试样的宏观和微观形貌特征。分析了GO改性对复合材料强度和模量的影响。结果表明，GO改性提高了纤维/树脂界面的结合强度、拉伸和弯曲性能。尤其，当填充量为0.25 wt%时，沿0°和90°方向的拉伸强度分别增加了8.97%和4.78%。同样，拉伸模量分别增加了 15.19 和 10.74%。此外，沿0°和90°方向的弯曲强度分别增加了10.70和9.60%，而弯曲模量分别增加了9.62和15.20%。因此，GO改性的碳/玻璃杂化纤维增强复合材料表现出改善的机械性能，因此可应用于广泛的领域。而弯曲模量分别增加了 9.62 和 15.20%。因此，GO改性的碳/玻璃杂化纤维增强复合材料表现出改善的机械性能，因此可应用于广泛的领域。而弯曲模量分别增加了 9.62 和 15.20%。因此，GO改性的碳/玻璃杂化纤维增强复合材料表现出改善的机械性能，因此可应用于广泛的领域。

更新日期：2021-10-08

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