( 合肥工業(yè)大學(xué) 材料科學(xué)與工程學(xué)院, 合肥 230009)
摘 要: 碳納米管因其優(yōu)異的力學(xué)、物理性能， 是一種理想的復(fù)合材料增強(qiáng)體， 但其與基體金屬的潤濕性較差。 通過化學(xué)鍍在碳納米管表面鍍上一層連續(xù)的銅鍍層， 以改善碳納米管與金屬基體的潤濕性， 增強(qiáng)界面結(jié)合力。通過TEM觀察表明： 由于碳納米管長徑比大，反應(yīng)活性低， 表面曲率大， 直徑細(xì)和鍍層薄（50~100nm），使碳納米管很難得到完整的鍍層。 通過對鍍前處理工藝（氧化、 敏化、 活化）的優(yōu)化以增加活化點(diǎn)， 對傳統(tǒng)鍍液配方的調(diào)整使鍍速盡可能低， 成功地在碳納米管上鍍覆一層銅，為碳納米管復(fù)合材料制備打下了良好的基礎(chǔ)。
關(guān)鍵字: 碳納米管； 化學(xué)鍍； 銅
（ Department of Material Science and Engineering,
Hefei University of Technology,Hefei 230009, China）
Abstract: Carbon nanotube is a promising reinforcing material for its unique mechanical and physical properties, though wetting property of metal-matrix and carbon nanotube is poor. Interfacial strength would be increased between carbon nanotubes and metal-matrix through electroless plating a continuous layer of copper on carbon nanotubes. TEM images show that it is difficult to gain continuous elcetroless plating layer for carbon nanotubes because of large proportion of longitudinal axis length and its diameter, weak reaction capacity, large curvature of surface, small diameter and thin plating layer(50~100nm). A series of way of optimization(oxidization, sensitization and activation) were used to add activated sites before electroless plating, and the adjustment of the traditional composition of copper electroless plating bath can decelerate electroless plating. The surface of carbon nanotubes was successful coated with continuous layer of copper.
Key words: carbon nanotubes; electroless plating; copper
