中文摘要：

先通过单因素试验，研究了光亮剂（2-巯基苯并咪唑、二氧化硒）和表面活性剂（十二烷基苯磺酸钠、聚乙二醇10000）对无氰镀铜层光泽度的影响。确定的基础镀液组成和工艺条件为：硫酸铜50g／L，丁二酰亚胺90g／L，三乙醇胺40g／L，柠檬酸20g／L，氢氧化钾60g／L，pH值9．0～9．5，温度20-30℃，电流密度2A／dm2，时间5min。再通过正交试验，得到较优的复合添加剂配方为：2-巯基苯并咪唑1．5mg／L，聚乙二醇10000 40mg／L。加入复合添加剂后，镀液的稳定性提高，电流效率、分散能力和覆盖能力分别为82．4％、75,0％和100．0％；镀层表面平整，结晶细致，结合力强，沿（111）晶面的取向更为明显。

英文摘要：

Effects of brightener, like 2-mercapto benzimidazole and selenium dioxide, and surfactant, like sodium lauryl benzenesulfate and polyethylene glycol 10000, on the glossiness of cyanide-free copper coating were studied through single-factor experiment. The composition of basic bath and process conditions were determined as follows： copper sulphate 50 g/L, succinimide 90 g/L, triethanolamine 40 g/L, citric acid 20 g/L, potassium hydroxide 60 g/L, pH value 9.0-9.5, temperature 20-30℃, current density 2 A/dm2, time 5 mir.. Moreover, the optimal formula of compound additives determined through orthogonal experiment was as follows： 2-mercapto benzimidazole 1. 5 mg/L, polyethylene glycol 10000 40 mg/L. Adding compound additives to the bath, the stability of bath was improved, and the current efficiency, throwing power and covering power were 82.4%, 75.0% and 100.0%, respectively. The coating featuring smooth surface and compact crystalline, the bonding force was high, and the preferred orientation of （111） crystal plane was more obvious.