镀锡板表面特性对涂饰性的影响研究

镀锡板在食品包装领域有着广泛的应用。本文采用电子扫描电镜、电化学分析和划痕分析方法，研究了镀锡表面性能对涂饰性的影响。结果表明，镀锡板表面钝化膜含铬量对涂饰性有着重要的影响。当钝化膜含铬量控制10～20 mg／m2范围内，镀锡板表面具有较好的涂饰性。烘烤温度和烘烤时间对镀锡板表面形貌和耐蚀性无明显影响，但对涂饰性有着明显影响。烘烤时间为15 min ，烘烤温度在200℃左右，镀锡板表面与漆膜具有较好的结合力。

Effect of Surface Properties of Tinplating Product on Finishing

Tin plate in the field of food packaging has been widely used . In this paper , effect of the surface properties of tinplating product on finishing is studied by means of scanning electron microscopy （ SEM） , electrochemistry and scratch methods . The results showed that tin plate surface passivation film of chromium coating has an important impact on the finishing properties . When the amount of chromium passivation film containing is fixed at the range of 10mg/m2～ 20mg/m2 , tin plate has a better finishing of the surface . Baking temperature and baking time had no significant effect on the tin plate surface morphology and corrosion resistance , but has a significant effect on the coating properties . When baking time was of 15min and the baking temperature at 200 ℃ , tin plate surface and the film has good adhesion .