多功能水性低表面處理涂料及涂層防護(hù)性能
[Abstract]:Based on the corrosion of carbon steel surface, the effects of the main antirust components and the preparation process on the coating and coating properties of a multifunctional acid waterborne low surface treatment coating were studied, and the protective properties of the coating were investigated. And compared with the same kind of imported coating. The results show that when the surface treatment grade of the substrate is St1, the adhesion of the coating increases first and then decreases with the increase of the antirust component content, and the active group contained in the chelating agent stabilizes the corrosion of the substrate surface. Improve the adhesion of coating. The surface corrosion of the substrate was transformed by the complex rust conversion agent, and the adhesion of the coating was further improved. The best preparation technology is the combination of compound rust conversion agent and low speed stirring. There was no significant difference in adhesion between the coatings when the grade of substrate surface treatment was St1 and St3 respectively, and the adhesion of the coatings was up to 5 MPa.. There is no obvious difference in corrosion resistance of the coating: salt water resistance 1200 h, salt spray 1000 h, UV aging 2000 h, which is much higher than the imported waterborne rusted primer, which is suitable for the maintenance of complex steel components in atmospheric environment.
【作者單位】: 北京科技大學(xué)腐蝕與防護(hù)中心;
【基金】:國家自然科學(xué)基金資助項(xiàng)目(51071027) 國家重點(diǎn)基金研究發(fā)展規(guī)劃資助項(xiàng)目(2014CB643300)
【分類號】:TG174.4
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