Smart coating based on double stimuli-responsive microcapsules containing linseed oil and benzotriazole for active corrosion protection
Smart coating based on double stimuli-responsive microcapsules containing linseed oil and benzotriazole for active corrosion protection
复制标题
DOI：
10.1016/j.corsci.2017.10.009
复制
发表时间：
2018-01-01
影响因子：
8.3
通讯作者：
Bruno Marino, Claudia Eliana
中科院分区：
文献类型：
--
作者：
Leal, Debora Abrantes;Riegel-Vidotti, Izabel Cristina;Bruno Marino, Claudia Eliana
采用原位聚合法制备了亚麻籽油微胶囊，并利用层层组装技术将苯并三唑包埋在微胶囊外的聚电解质层之间。制备的微胶囊呈现2.08 μ π ι的平均数直径，并且在微酸性NaCl溶液中释放更大量的苯并三唑。使用涂覆有负载有微胶囊（4.8wt%）的环氧树脂的碳钢基材评价微胶囊的腐蚀保护效果。由于亚麻籽油和苯并三氮唑的刺激响应性释放，与对照相比，电化学阻抗谱显示负载涂层的最佳性能。
Microcapsules containing linseed oil were synthesized by in situ polymerization method and benzotriazole was entrapped between polyelectrolytes layers assembled outside the microcapsules, using the Layer-by-Layer technique. The prepared microcapsules presented mean number diameter of 2.08 pm and released greater amount of benzotriazole in slightly acidic NaCI solution. The corrosion protection effect of the microcapsules was evaluated using a carbon steel substrate coated with an epoxy resin loaded with the microcapsules (4.8 wt %). Electrochemical impedance spectroscopy demonstrated the best performance of the loaded coating when compared to a control due to the stimuli-responsive release of linseed oil and benzotriazole.