石墨烯
环氧树脂
材料科学
复合材料
抗弯强度
氧化物
扫描电子显微镜
复合数
玻璃纤维
大气温度范围
粘弹性
玻璃化转变
聚合物
纳米技术
物理
气象学
冶金
作者
Rajesh Kumar Prusty,Sohan Kumar Ghosh,Dinesh Kumar Rathore,Bankim Chandra Ray
标识
DOI:10.1016/j.compositesa.2017.01.001
摘要
The unique and exceptional properties of graphene based nanofillers have impelled material scientists for their possible exploitation in fibrous polymeric composites. Present investigation elucidates the effect of environmental temperature on the mechanical response of glass fibre/epoxy (GE) composite loaded with a range of graphene oxide (GO) content. Incorporation of 0.5 wt.% GO in GE exhibited 21.1% improvement in flexural strength. The state of interface (both GO/epoxy and glass fibre/epoxy) and its impact on the flexural behaviour at various testing temperatures has been discussed. The viscoelastic properties of all the materials have been further evaluated in the temperature range of 40–200 °C. The Weibull design parameters have been analysed as a function of GO content and testing temperature. Scanning electron microscope (SEM) analysis of fractured surfaces has been carried out to comprehend various interfacial strengthening and failure micro-mechanisms.
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