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| Preparation and Performance of Polyacrylate/Amino Resin Coating for Environment with DOT4 |
| Received:September 16, 2017 Revised:November 15, 2017 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2017.11.019 |
| KeyWord:polyacrylate resin with high acid value polyacrylate/amino resin coating braking-oil-resistance shock- resistance |
| Author | Institution |
| LI Tao |
Navy Aviation Military Representative Office in Xiangfan, Xiangyang , China |
| ZHANG Chao |
China Special Vehicle Research Institute, Jingmen , China |
| WANG Guang-chao |
China Special Vehicle Research Institute, Jingmen , China |
| YOU Jia-wang |
China Special Vehicle Research Institute, Jingmen , China |
| LIU Yuan-hai |
China Special Vehicle Research Institute, Jingmen , China |
| WANG Hao-wei |
China Special Vehicle Research Institute, Jingmen , China |
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| Abstract: |
| Objective To improve the DOT4 braking-oil-resistance of polyacrylate/amino resin coating and retain its good shock resistance. Methods Polyacrylate resin with high acid value was synthesized with high molecular weight epoxy resin (E20) to prepare polyacrylate/amino resin coating by mixing, heating and curing with the polyacrylate resin. The braking-oil-resistance, adhesive force and shock resistance of the polyacrylate/amino resin coating were tested with high temperature soaking method, grid test and shock test of DOT4. Results The polyacrylate resin with acid value of 60 mgKOH/g and solid content of 60% was synthesized successfully. When the ratio of polyacrylate resin to the amino resin equaled to 3:1 and the concentration of E20 equaled to 4% based on the sum of the mass polyacrylate resin and amino resin, the coating had the best combination property with adhesive force of 0 grade and shock resistance of 50 kg•cm. The coating could stand baking in DOT4 at 100 ℃ for 7 h without exfoliating or blistering. Conclusion This method is suitable for improving DOT4 brake fluid resistance of acrylic amino paint. |
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