Cu/ n2TiO 2/ PBO复合纤维的制备

以 PBO纤维为基体 , 采用浸渍涂覆法在 PBO纤维表面包覆纳米 TiO 2膜 , 采用化学镀法将 Cu沉积到纳米 TiO 2膜表面 , 制备了 Cu/ n2 TiO 2/ PBO复合纤维 , 研究了影响纳米 TiO 2沉积速率和 Cu 沉积速率的主要因素。结果表明 , 纳米 TiO 2与偶联剂的浓度配比是影响纳米 TiO 2包膜形成的主要因素 , 当纳米 TiO 2与偶联剂浓度配比为 1∶1. 2时 , 制备的 n2TiO 2/ PBO复合纤维界面结合力较好 , 且纳米 TiO 2包覆层比较均匀。影响化学镀铜- 1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 CuSO 4·5H 2O 12 g ·L 、KNaC 4H 4- 1 - 1 - 1O 68 g·L 、HCHO 6 mL ·L 和 NaOH 10 g·L , 反应温度 50℃, 镀铜时间 20 min的条件下 , 制备了负载均匀 , 界面结合力较好的 Cu/ n2 TiO 2/ PBO复合纤维。

Preparation of Cu/n-TiO2/PBO composite fibers

Cu/ n2 TiO 2/ PBO composite fibers were prepared with nano2 TiO 2 deposited on PBO fibers by dipping ,and then Cu deposited on nano2 TiO 2 thin films by elect roless plating. The main effective factors on the nano2 TiO 2 and Cu depositing rates were studied. The result s show that the concent ration ratio of nano2 TiO 2 and coupling rea2 gent works as the key effective factor on the nano2 TiO 2 depositing rate. The nano2 TiO 2 is well deposited on PBO fibers when the concent ration ratio is 1∶1. 2. The main effective factors on the Cu depositing rate are bath compo2 sition , reaction time and reaction temperature. Cu is well deposited on the n2 TiO 2/ PBO composite fibers under the - 1 - 1 - 1 - 1condition of CuSO 4·5H 2O 12 g ·L , KNaC 4H 4O 6 8 g ·L , HCHO 6 mL ·L , NaOH 10g ·L , reaction temperature 50℃and reaction time 20 min.