前言由石墨纤维或碳纤维增强的环氧复合材料(缩写为GECM)因其比强度高、模量高、比重小而发展为优质的航空、航天用结构材料。实际使用表明:当石墨(碳)纤维增强的环氧复合材料和金属或合金接触时存在着严重的电偶腐蚀问题。例如,在GECM/铝蜂窝夹层结构中,由于GECM和铝蜂窝偶联加速了铝的腐蚀;在GECM制作的分段结构装配件上出现 Introduction Epoxy composites (abbreviated as GECM) reinforced with graphite fibers or carbon fibers have developed into high-quality aerospace structural materials for their high specific strength, high modulus and small specific gravity. Practical use shows that there is a serious problem of galvanic corrosion when graphite (carbon) fiber reinforced epoxy composites come in contact with metals or alloys. For example, in GECM / aluminum honeycomb sandwich structures, corrosion of aluminum due to GECM and aluminum honeycomb coupling is accelerated; appearances on segmented structural assemblies made by GECM