Abstract: The interface problem between carbon fiber and copper is very serious because of the poor wettability between carbon fiber and copper.Therefore the excellent performance of C_f/Cu composite is badly affected.The interface problem of C_f/Cu composite could be resolved when the carbon fiber is coated with copper through electroless plating and then mixed with copper.However it is very difficult to deposit copper onto carbon fiber because carbon fiber was tenuous and hydrophobic. The effect of four kinds of additives A（alkyl benzene sulfuric salt）,B（alkyl sulfuric salt）,C（dodecyl fatty salt）and D（dodecyl fatty salt + sodium acetate） was discussed respectively when bluestone was used as main salt and zinc as reducing agent to deposit copper onto carbon fiber. The result showed that additive D was the best one in copper plating and the problem of black-core that often occurred in the course of copperizing a bundle of carbon fiber was effectively resolved.SEM showed that every carbon fiber was coated with even and continuous copper in the experiment,the interface bonding between carbon fiber and copper was firm, and carbon fibers combined with copper tightly in the composite.

摘要： 碳纤维与铜之间的润湿性很差，导致碳纤维-铜复合材料的界面问题十分突出，给碳纤维增强铜基复合材料具有的优异性能带来很大的影响.用化学反应法在碳纤维表面镀铜,然后再与铜复合，可以有效地解决上述问题.但由于碳纤维具有纤细疏水、表面惰性的特点，对它镀铜很难.本文以CuSO₄为主盐，锌粉为还原剂，研究了4种不同类型添加剂: A（烷基苯磺酸盐）、B（烷基磺酸盐）、C（十二烷基脂肪酸盐）和D（十二烷基脂肪酸盐+乙酸钠）对碳纤维镀铜的影响.结果表明：D型添加剂最有利于碳纤维镀铜, 它能有效地解决碳纤维镀铜时经常发生的碳纤维束“黑心”问题.在实验中观察到整束碳纤维被均匀、连续地镀上了铜.通过扫描电镜观察：在镀铜碳纤维的断面上可以看到镀层和碳纤维结合得很牢固;在镀铜碳纤维与铜复合所得的复合材料中碳纤维与铜之间的界面结合得十分紧密.