Cardanol-based polybenzoxazine superhydrophobic coating with improved corrosion resistance on mild steel
Cardanol-based polybenzoxazine superhydrophobic coating with improved corrosion resistance on mild steel
复制标题
腰果酚基聚苯并恶嗪超疏水涂层可改善低碳钢的耐腐蚀性
DOI：
10.1016/j.porgcoat.2019.06.037
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发表时间：
2019-11-01
影响因子：
6.6
通讯作者：
Zhou, Changlu
中科院分区：
文献类型：
--
作者：
Huang, Jian;Lou, Chang;Zhou, Changlu
将腰果酚基聚苯并恶嗪与氨基改性二氧化硅纳米粒子相结合，在碳钢表面制备了一种超疏水涂层(PC-a/SiO_2)，用于防腐涂层。用傅里叶变换红外光谱研究了PC-a/SiO_2涂层的热固化行为。耐久的PC-a/SiO_2涂层的静态水接触角为162.8+/-2.9时，即使在250℃热处理1h或在3.5wt%NaC l水溶液中浸泡10d，仍能保持其超疏水性能。电化学测试结果表明，PC-a/SiO_2涂层在3.5wt%的氯化钠水溶液中长期浸泡具有良好的耐蚀性。基于腰果酚的聚苯并恶嗪超疏水涂层有望在实际应用中获得良好的耐腐蚀性能。
Cardanol-based polybenzoxazine and amino-modified silica nanoparticles were combined to develop a superhydrophobic coating (PC-a/SiO2) on mild steel for anti-corrosion coating application. The thermal curing behavior of the PC-a/SiO2 coating was studied by Fourier transform infrared spectroscopy. The durable PC-a/SiO2 coating with a static water contact angle of 162.8 +/- 2.9 degrees could retain its superhydrophobic property even after heat treatment at 250 degrees C for 1 h or immersion in 3.5 wt% NaCl aqueous solution for 10 days. The electrochemical measurement results indicate that the PC-a/SiO2 coating exhibits superior corrosion resistance during prolonged immersion in 3.5 wt% NaCl aqueous solution. It is expected that the cardanol-based polybenzoxazine superhydrophobic coating is promising for practical applications of corrosion resistance.