Abstract
Waterborne coating has recently been paid much attention. However, it cannot be used widely due to its performance limitations. Under the specified conditions of the selected resin, selecting the function pigment is key to improving the anticorrosive properties of the coating. Zinc phosphate is an environmentally protective and efficient anticorrosion pigment. In this work, zinc phosphate was used in modifying waterborne acrylic coatings. Moreover, the disbonding resistance of the coating was studied. Results showed that adding zinc phosphate can effectively inhibit the anode process of metal corrosion and enhance the wet adhesion of the coating, and consequently prevent the horizontal diffusion of the corrosive medium into the coating/metal interface and slow down the disbonding of the coating.
Highlights
Serious environment problems have directed attention toward water-based coatings because of their low volatile organic compounds VOC advantages [1,2,3]
The experimental results of electrochemical impedance spectroscopy (EIS) revealed that adding zinc adding zinc phosphate did not change the electrochemical process of the coating failure but phosphate did not change the electrochemical process of the coating failure but effectively slowed effectively slowed the corrosion degree of the coating defects
The anode and cathode electrochemical processes were processes were characterized via localized EIS (LEIS)
Summary
Serious environment problems have directed attention toward water-based coatings because of their low volatile organic compounds VOC advantages [1,2,3]. Waterborne coatings have performance limitations; they have been extensively used indoors, where the corrosion environment is below the C3 level [4]. Waterborne coatings need to have improved performance for long-term applications [5,6,7,8]. Disbonding is the first sign of coating/metal interface corrosion [11,12,13,14], which is the most common form of failure that limits coatings, especially for long-term applications of waterborne coatings [15]. The ability to resist disbonding characterizes the coating service life, which is the main purpose for developing long-lasting water-based coatings suited for harsh environments [16]. Adding an electrochemically active antirust pigment is a common method for improving the antirust capacity of the coating [17,18]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
