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电阻法是同时测量纤维的电性能和微机械性能的一种无损检测的方法,广泛的用于碳纤维复合材料中测量碳纤维在复合材料中的应力或应变。然而,有关电阻法用于碳纳米管纤维体系中的报道却很少。碳纳米管纤维由大量的碳纳米管组成,其中存在着许多孔隙等缺陷,这也使得碳纳米管纤维/环氧树脂复合材料的界面具有一定的特殊性。本文自行配制了三种不同力学性能的环氧树脂,首次将电阻法用于碳纳米管纤维/环氧树脂复合材料体系中测量其界面传载效率,并结合扫描电镜断面图片,分析了影响碳纳米管纤维/环氧树脂复合材料界面性能的主要影响因素。
Resistance method is a non-destructive testing method which can simultaneously measure the electrical and micro-mechanical properties of fiber. It is widely used to measure the stress or strain of carbon fiber in composite materials in carbon fiber composites. However, there are few reports about the resistance method used in the carbon nanotube fiber system. Carbon nanotube fibers consist of a large number of carbon nanotubes, many of which exist defects such as pores, which also makes the carbon nanotube fiber / epoxy composite interface has a certain particularity. Three kinds of epoxy resin with different mechanical properties were prepared in this paper. The resistance method was used for the first time in the carbon nanotube fiber / epoxy composite system to measure the transmission efficiency of the interface. Combined with the cross-sectional SEM picture, Main Influencing Factors of Interface Properties of Nanotube Fibers / Epoxy Composites.