中文摘要：

以PBO纤维为基体，采用浸渍涂覆法在PBO纤维表面包覆纳米TiO2膜，采用化学镀法将Cu沉积到纳米TiO2膜表面，制备了Cu／n—TiO2／PBO复合纤维，研究了影响纳米TiO2沉积速率和Cu沉积速率的主要因素。结果表明，纳米TiO2与偶联剂的浓度配比是影响纳米TiO2包膜形成的主要因素，当纳米TiO2与偶联剂浓度配比为1：1．2时，制备的n—TiO2／PBO复合纤维界面结合力较好，且纳米TiO2包覆层比较均匀。影响化学镀铜的主要因素有镀液成分、反应时间和反应温度。在镀液成分的浓度配比为CuSO4·5H2O12g·L^-1、KNaC4H4O48g·L^-1、HCHO6mL·L^-1和NaOH10g·L^-1，反应温度50℃，镀铜时间20min的条件下，制备了负载均匀，界面结合力较好的Cu／n—TiO2／PBO复合纤维。

英文摘要：

Cu/n-TiO2/PBO composite fibers were prepared with nano-TiO2 deposited on PBO fibers by dipping, and then Cu deposited on nano-TiO2 thin films by electroless plating. The main effective factors on the nano-TiO2 and Cu depositing rates were studied. The results show that the concentration ratio of nano-TiO2 and coupling reagent works as the key effective factor on the nano-TiO2 depositing rate. The nano-TiO2 is well deposited on PBO fibers when the concentration ratio is 1 ： 1.2. The main effective factors on the Cu depositing rate are bath composition, reaction time and reaction temperature. Cu is well deposited on the n-TiO2/PBO composite fibers under the condition of CuSO4·5H2O 12 g·L^-1 , KNaC4 H4O6 8 g·L^-1 , HCHO 6 mL·L^-1 , NaOH 10g · L^-1 , reaction temperature 50℃ and reaction time 20 min.