摘要： 介绍了一种应用于扶梯的底面合一水性自干防腐涂料体系，旨在实现高压混气喷涂一次性厚涂，并解决水性自干单涂层耐腐蚀性差的问题。 通过电化学分析与盐雾测试探讨了防闪锈助剂、功能性缓蚀助剂、颜基比对涂层耐腐蚀性的影响，以及触变增稠剂对高压混气喷涂流挂与流平的影响。 实验表明:涂膜性能可以达到或超过现有溶剂型醇酸体系，产品施工性良好，满足企业安全生产的需求。

关键词: 底面合一, 高压混气喷涂, 室温固化, 防腐蚀涂料, 扶梯专用涂料

Abstract: A novel waterborne self-drying anticorrosive two-in-one coating system integrated with primer and topcoat applied in escalator has been introduced. The coating system can be applied via high pressure air spraying process to form a one-step high build film, and provides a solution to weak anticorrosive property of single waterborne self-drying film. The influence of the flash rust resistant agent, functional corrosion retardant agent,pigment/binder ratio on anticorrosive performance of film is examined, meanwhile, the influence of the thixotropic thickener sagging and leveling properties of film formed by high pressure air spraying process is investigated. Compared with the solvent-based alkyd coatings, the waterbome coating system has a better performance and can meet the requirements of the safely production.

Key words: two-in-one coating system integrated with primer and topcoat, high pressure air spraying process, ambient curing anticorrosive coatings, coatings for escalator