聚丙烯酰胺对室温磷化液磷化性能的影响

考察了功能性聚合物聚丙烯酰胺对室温磷化液磷化性能的影响。结果发现 ,向磷化液中加入聚丙烯酰胺 ,有利于其磷化性能的提高 ;聚丙烯酰胺功能基团的离子性影响磷化液的磷化性能 ,与非离子和阴离子功能基团相比 ,阳离子功能基团更有利于磷化性能的提高 ;聚丙烯酰胺的离子度和分子量对磷化液磷化性能几乎没有影响 ;随着聚丙烯酰胺浓度的增大 ,磷化液磷化性能提高 ,但其浓度增大到一定值后 ,磷化性能不再有明显的变化。

Effects of Functional Polymers on Phosphating Performances of Room Temperature Phosphating Solution

The effects of the functional polyacrylamide on the phosphating performances of the room temperature phosphating solution have been investigated.It is found that adding a small amount of polyacrylamide to the phosphating solution can improve its phosphating performances;the ion property of polyacrylamide affects the phosphating performances,and the cationic is superior to the nonionic and the anionic;the ion content and molecular weight have no effect on the phosphating performances;the phosphating performances are improved along with the polyacrylamide concentration and then tend to level off.