涤纶织物化学镀Ni-Co-Fe-P的制备及性能表征  

Preparation and Characterization of Electroless Ni-Co-Fe-P Alloy on PET Fabric

作　　者：张颖[1] 贾瑛[1] 

机构地区：[1]第二炮兵工程学院503教研室,陕西西安710025

出　　处：《电镀与环保》2011年第1期34-38,共5页Electroplating & Pollution Control

摘　　要：基于化学镀技术在涤纶织物表面进行了化学镀Ni-Co-Fe-P处理。在单因素实验的基础上对化学镀工艺进行了正交实验设计,筛选出沉积速率高、稳定性好的工艺配方。采用扫描电子显微镜（SEM）、X射线能谱仪（EDS）对镀层形貌、组分进行表征,并对镀后织物的电磁波屏蔽效能进行测定。结果表明：在缓冲剂的质量浓度为14 g/L,镀覆时间为30 min的基础上,影响镀层金属沉积速率的顺序为：pH值〉还原剂〉温度〉主盐的质量浓度比〉配位剂。最佳工艺配方为：硫酸钴10.5 g/L,硫酸亚铁8 g/L,硫酸镍25 g/L,次磷酸钠30 g/L,柠檬酸钠25 g/L,硫酸铵14 g/L,pH值9.0,90℃,30 min。镀层表面微粒均匀、堆积致密,镀层中各成分的质量分数分别为镍约78%,钴约9.8%,铁约8.7%,磷仅为3.3%,属于低磷镀层;在2 250~2 650 MHz范围内,镀后织物的电磁波屏蔽效能可达60 dB。Based on electroless plating technology,electroless Ni-Co-Fe-P alloy was deposited on PET fabric.On the basis of single factor experiment,an orthogonal experiment was designed for the electroless plating process,by which a formula with high deposition rate and good stability was selected out.Morphology and composition of the Ni-Co-Fe-P alloy plating were characterized by scanning electron microscopy（SEM） and energy diffraction spectrum（EDS）,and the electromagnetic shielding effectiveness of the plated fabric was tested as well.The results indicate that when mass concentration of the buffer is 14 g/L,and deposition time is 30 min,the order affecting deposition rate is as follows： pHreducing agenttemperaturemass concentration of the main salt.The optimum formula is： CoSO_4 10.5 g/L,FeSO_4 8 g/L,NiSO_4 25 g/L,（NaH_2PO_2·H_2O） 30 g/L,C_6H_5Na_3O_7 25 g/L,（NH_4）_2SO_4 14 g/L,pH=9.0,90 ℃, 30 min.The plating surface is smooth,uniform and compact.The mass fractions of nickel,cobalt and phosphorous（belonging to low-phosphorous coating） in the coating are about 78 %,9.8 %,8.7 % and 3.2 % respectively.The electromagnetic shielding effectiveness of the plated fabric can reach 60 dB within 2 250~2 650 MHz.

关 键 词：化学镀 Ni-Co-Fe-P合金 涤纶织物 沉积速率 表征 

分 类 号：TQ153[化学工程—电化学工业]