一、前言 碳纤维具有优异的力学性能,但是这种突出的性能有效地过渡到复合材料中去,则主要取决于碳纤维的表面性质和状态,了解碳纤维表面特征对于碳纤维表面改性的影响是完全必要的。碳纤维在表面处理过程中,表面积、表面元素组成和表面形态都发生变化,这些变化因素可通过不同的粘合机理来改善界面的粘合状态,因此研究碳纤维复合材料的界面粘合机理,不仅能对表面改性后复合材料的力学性能的改善加以解释,而且为新的、 I. INTRODUCTION Carbon fiber has excellent mechanical properties, but the outstanding performance of the transition to the composite material, it depends mainly on the surface properties of carbon fiber and state, understand the carbon fiber surface characteristics of carbon fiber surface modification is completely necessary of. In the process of surface treatment, the surface area, surface element composition and surface morphology of carbon fiber all change. These factors can improve the bonding state of the interface through different bonding mechanisms. Therefore, it is not only possible to study the interfacial bonding mechanism of carbon fiber composites The improvement of the mechanical properties of the surface modified composites is explained, and new,