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| Performance of Waterborne Acrylic Coatings with Nanometer SiO2 Microspheres |
| Received:September 19, 2018 Revised:April 17, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2019.10.014 |
| KeyWord:water-based acrylic acid nano-SiO2 microspheres alternating-current impedance |
| Author | Institution |
| WANG Xin |
Institute of Oceanology, Chinese Academy of Sciences, Qingdao , China |
| FAN Wei-jie |
Institute of Oceanology, Chinese Academy of Sciences, Qingdao , China |
| WANG Shao-fei |
Shandong YILI Paint Co.Ltd, Weifang , China |
| WANG Rui-fang |
Shandong YILI Paint Co.Ltd, Weifang , China |
| LI Wei-hua |
Institute of Oceanology, Chinese Academy of Sciences, Qingdao , China;Shandong YILI Paint Co.Ltd, Weifang , China |
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| Abstract: |
| Objective To prepare a waterborne acrylic coating of good performance by adding nano-SiO2 hollow core microspheres into the film-forming material of water-based acrylic acid. Methods The microscopic morphology property, convention mechanics performance and electrochemical property of the prepared coatings were investigated by scanning electron microscopy (SEM), pull adhesion test, xenon accelerated aging test, acid salt spray test, and electrochemical impedance spectroscopy (EIS). The SEM morphology showed that the nano-SiO2 microspheres had excellent compatibility and stability with the film-forming material. The Modified coating had good adhesion in normal and high temperature conditions. The results of acid salt spray test and accelerated aging test of xenon lamp showed that the modified coating had good aging resistance and good corrosion resistance in acid environment. Compared with the EIS results, it was obvious that the corrosion resistance of the water-based acrylic coating with the addition of microspheres was increased by 50%. Conclusion Adding nano-SiO2 microspheres into the aqueous acrylic film-forming material could significantly enhance the environmental adaptability and improve its anti-corrosion performance at the same time. |
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