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前言随着液体羧基丁腈橡胶增韧环氧树脂研究工作的深入,基体的韧化对复合材料性能的影响引起了人们的关注。众所周知,基体树脂的力学性能有明显的温度依赖性,当然可予想,复合材科的力学性能也体现出树脂的影响。而基体对复合材料力学性能温度依赖性的影响,与复合材料的纤维/基体界面胶接强度的温度依赖性有关。尤其,由于基体的热性质不同,对各个温度下复合材料破坏方式的影响,会造成复合材料力学性能温度依赖性的变化。本文使用未韧化与无规羧基丁腈橡胶和双酚A韧化的两类热性质不同的环氧树脂基体,进行复合材料力学性能温度依赖性的探讨,以便进一步了解韧化基体对复合材料力学性能的影响。
Preface With the in-depth research of liquid carboxylated nitrile rubber toughened epoxy resin, the influence of matrix toughening on the properties of composite materials has aroused people’s attention. As we all know, the mechanical properties of the matrix resin has obvious temperature dependence, of course, may be thought, the mechanical properties of composite materials also reflects the influence of the resin. The effect of matrix on the temperature dependence of the mechanical properties of the composites is related to the temperature dependence of the bond strength of the fiber / matrix interface of the composites. In particular, due to the different thermal properties of the matrix, the effect of the composite material destruction at each temperature will result in a temperature-dependent change in the mechanical properties of the composite. In this paper, two kinds of epoxy resin matrix with different thermal properties of non-toughened and random carboxylated nitrile rubber and bisphenol A toughening were used to investigate the temperature dependence of the mechanical properties of composites in order to further understand the effect of toughening matrix on the composites Effect of mechanical properties.