Wan Hongxia, Song Dongdong, Li Xiaogang, Zhang Dawei, Gao Jin, Du Cuiwei
Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China.
Aerospace Research Institute of Materials and Processing Technology, Beijing 100076, China.
Materials (Basel). 2017 Jun 14;10(6):654. doi: 10.3390/ma10060654.
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.
水性涂料近来备受关注。然而，由于其性能限制，它无法被广泛应用。在所选树脂的特定条件下，选择功能性颜料是提高涂层防腐性能的关键。磷酸锌是一种环保且高效的防腐颜料。在这项工作中，磷酸锌被用于改性水性丙烯酸涂料。此外，还研究了涂层的耐脱粘性能。结果表明，添加磷酸锌可有效抑制金属腐蚀的阳极过程，增强涂层的湿附着力，从而防止腐蚀性介质向涂层/金属界面的横向扩散，并减缓涂层的脱粘。
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