水性聚苯胺微乳液及其防腐涂料研究

详细信息

Studies on Waterborne Polyaniline Microlatex and its Coating for Metal Protection

Institute of Materials Chemistry, Laboratory of Concrete Materials Research, College of Materials Science & Engineering, Tongji University, Shanghai 200092, China

摘要: 利用改进的新型微乳液聚合法合成了聚苯胺水性微乳液，该微乳液不经破乳可直接应用于金属防腐涂料。将其与环氧树脂的共混乳液作为底漆、与环氧树脂面漆复合后，可制备出性能优良的水性金属防腐涂料。该复合涂层能将裸露钢板的平衡开路电位提高235mV左右，在自来水中至少可浸泡3个月不起泡、不生锈，是一种环境友好型绿色涂料。
- 聚苯胺 /
- 水性涂料 /
- 防腐涂料
Abstract: A waterborne polyaniline microlatex is synthesized by a new modified microemulsion polymerization and the resulting microlatex could be applied as a coating for metal protection without further demulsification. A waterborne metal corrosion-resistant coating with good performance has been assembled using a mixture of the polyaniline microlatex with an epoxy emulsion as a prime coating, and a pure epoxy emulsion as a surface coating. The composite coating could enhance the open-circuit potential of a mild steel panel to circa 235mV comparing with that of the bare ones. They have not become blistered or rusted when they are exposed in tap-water for at least 3 months. It is indicated that the polyaniline microlatex is a sort of environmental friend coating.
- Polyaniline /
- Waterborne coating /
- Corrosion-resistant coating