采用化学气相沉积(CVD)方法,以乙炔(C2H2)为碳源,直接于铜基板上生长碳纤维薄膜。铜基板只进行简单的打磨处理。通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)对产物的形貌、结构进行了表征,并用接触角测量仪(CA)对制备的碳纤维薄膜进行疏水性测试。结果表明:在铜基板表面制备了一层直径为100~200nm,厚度为40~50μm的碳纤维薄膜。疏水测试结果显示,这种薄膜有较好的疏水性能,且随纳米碳纤维合成温度变化而变化。经多次试验表明,铜片具有良好的循环使用性能,可多次用于制备碳纤维薄膜。
Carbon nanofiber films were synthesized directly on copper sheet using acety- lene as carbon source by chemical vapor deposition (CVD). The products were charac- terized by SEM, TEM, and CA measurement. It was observed that a uniform CNF film with a thickness of 40-50μm was synthesized at 400℃. The diameters of the produced CNFs were 100--200 nm. The obtained CNF films exhibited fine hydrophobic properties and show different CA at different synthesized temperature. Moreover, the copper sheet can be used several times to produce CNF films, exhibiting a fine cycle performance.