将玻璃纤维织物放入已经过超声分散的碳纳米管/丙酮溶液中, 通过浸泡/超声方法制备碳纳米管复合纤维预制体。采用树脂传递模塑(RTM)工艺制备碳纳米管/玻璃纤维/环氧树脂混杂多尺度复合材料。通过光学显微镜、溶液电导率测试和扫描电子显微镜(SEM)观察研究碳纳米管分散体系稳定性对纳米复合预制体纤维表面形貌的影响。力学性能测试结果表明, 当碳纳米管用量为0.01 g/ml、0.005 g/ml时, 混杂多尺度复合材料层间剪切强度、弯曲强度分别达到最大值, 比未加入碳纳米管时分别提高了15.14%和15.59%。
A preform containing carbon nanotubes (CNTs) was fabricated by immersing glass fabric into ultrasonacated CNTs/acetone dispersion, which was used to prepare CNTs/glass fiber/epoxy hybrid multiscale composites.The effects of the stability of CNTs dispersion on the surface morphological structure of glass fiber with physically adsorbed CNTs were studied via optical microscope, solution conductivity measurement and scanning electron microscopy (SEM).The CNTs loadings of 0.01g/ml and 0.005 g/ml improved the interlaminar strength (ILSS) and flexural strength of the composites containing various scale reinforcements by 15.14% and 15.59%, respectively, as compared to the control carbon/epoxy composites.
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