材料期刊网

详述了光亮剂在氯化物微酸性镀锌过程中的作用，认为主光亮剂应是共轭体系的芳香族醛类或者酮类如苄叉丙酮等；载体光亮剂应为非离子表面活性剂(OP，平平加等)与阴离子表面活性剂的联合体。为了提高载体光亮剂的增溶性、润湿性、高浊点等特性，建议采用几种不同碳数和不同聚合度(n)的非离子表面活性剂及其磺化产物。详细讨论了影响浊点的诸因素(磺化剂浓度与OP或平平加的比例、反应温度、反应时间、催化剂以及盐析等)。扼要介绍了采用载波扫描法、线性扫描伏安法、电位阶跃法等电化学方法与正电子湮没、X-射线衍射、扫描电子显微镜、透射电子显微镜等技术研究光亮剂各组分对锌电结晶过程的影响，讨论了电结晶机理。

The function of brightener in micro- acidic chloride Zn electroplating was comprehensively reviewed.It was considered that brightener was primarily formed as aromatic aldehyde or ketone of conjugete system(such as phengbenzketone).The nonion surfactants(such as OP or Peregal)and negative surfactants,and that nonion surfactants with different carbon number and different polymerization degree as well as their sulphonate products should be adopted in order to improve solubility and high cloud point of brightener.The effects of components of brightener on zinc crystallization were discussed in connection with the results obtained by using linear sweep voltammetry,step potential,XRD,SEM and TEM methods.The electro- crystallization mechanism was also discussed by the authors.