防腐涂料用苯丙乳液的新型改性偶联剂的选择  

Selection of new silane coupling agent for styrene-acrylic emulsion used for anticorrosion coatings

作　　者：奚丽萍[1] 王绍明[1] 高延敏[1] 

机构地区：[1]江苏科技大学材料科学与工程学院,江苏镇江212003

出　　处：《电镀与涂饰》2010年第3期53-57,共5页Electroplating & Finishing

摘　　要：采用新型二烷氧基型硅烷偶联剂及传统三烷氧基型硅烷偶联剂对苯丙乳液进行改性,通过电化学阻抗方法对改性前后涂膜的防腐性能进行研究。结果表明,改性涂膜的防腐性能优于未改性涂膜,而新型二烷氧基型硅烷偶联剂KH-578改性苯丙乳液的防腐性能最佳。The styrene-acrylic emulsion was modified by a new bis-alkoxyl silane coupling agent and a conventional trialkoxyl silane coupling agent. The corrosion protection property of the coating before and after modification was studied by electrochemical impedance spectroscopy （EIS）. The results showed that the corrosion protection property of the modified coating is better than that of the unmodified coating, and the corrosion protection performance of the styrene acrylic emulsion modified by the new bisalkoxyl silane coupling agent KH-578 is the best.

关 键 词：苯丙乳液 硅烷偶联剂 改性 电化学阻抗谱 防腐性能 

分 类 号：TU561.67[建筑科学—建筑技术科学]