Polyvinyl butyral/3‐Hydroxy‐2‐naphthoic hydrazide/Poly (methylhydrosiloxane) Composite Coatings for Improved Stainless Steel Anticorrosion in Salt, Acid, and Alkali Solution
Polyvinyl butyral/3‐Hydroxy‐2‐naphthoic hydrazide/Poly (methylhydrosiloxane) Composite Coatings for Improved Stainless Steel Anticorrosion in Salt, Acid, and Alkali Solution
复制标题
聚乙烯醇缩丁醛/3-羟基-2-萘甲酰肼/聚甲基氢硅氧烷复合涂层可提高不锈钢在盐、酸和碱溶液中的防腐性能
DOI：
10.1002/slct.202103453
复制
发表时间：
2022-01
期刊：
影响因子：
2.1
通讯作者：
Wei Wang
中科院分区：
文献类型：
--
作者：
Sifan Chen;Anhang Li;Min Sun;Zhidong Ma;Yue Zhang;Wei Wang
以聚乙烯醇缩丁醛（PVB）、3-羟基-2-萘甲酰肼（HNH）和聚甲基氢硅氧烷（PMHS）为原料，采用机械搅拌法制备了一种环境友好的复合材料。将酰肼类化合物用于涂层中，以提高304不锈钢在不同环境中的防腐蚀能力。结构和表面形貌测试结果表明，各组分在PVB中分散均匀，在基体上制备的涂层光滑无裂纹和孔洞。电化学阻抗谱和动电位极化曲线结果表明，与其它试样相比，PVB/HNH/PMHS涂层的腐蚀电流密度（Icorr）呈下降趋势，电荷转移电阻（Rct）呈上升趋势，说明PVB/HNH/PMHS涂层的耐蚀性最好。在3.5 wt.% 在室温NaCl溶液中，这意味着PVB/HNH/PMHS涂层对基材的保护超过176天。 本工作为酰肼类化合物用于金属防腐蚀提供了一种理想的途径。
An environmental‐friendly composite material, combining polyvinyl butyral (PVB), 3‐hydroxy‐2‐naphthoic hydrazide (HNH) and poly (methylhydrosiloxane) (PMHS), was prepared by facile mechanical agitation. Hydrazide compounds were used into coating to improve anti‐corrosion capability of 304 stainless steel in different environments. The tested results of structure and surface morphology showed that components were uniformly dispersed into PVB, and prepared coating on substrate was smooth without cracks and holes. According to the results of electrochemical impedance spectroscopy and potentiodynamic polarization, compared with other specimens, the parameters of PVB/HNH/PMHS coatings appeared as the downward change in corrosion current density (Icorr) and upward change in charge transfer resistance (Rct), which indicated that the PVB/HNH/PMHS had the best anti‐corrosion ability. The long‐term immersion test was processed in 3.5 wt.% NaCl solution at room temperature, which referred that the substrate was protected by PVB/HNH/PMHS coating more than 176 days. This work provides an ideal way of using hydrazide compounds to prevent metal corrosion.
登录
查看更多内容
影响因子：
2.8
作者：
Monika Mishra;Karishma Tiwari;A. Singh;V. Singh
通讯作者：
Monika Mishra;Karishma Tiwari;A. Singh;V. Singh
影响因子：
8.3
作者：
Liangliang Xiong;Jianhua Liu;Mei Yu;Song-mei Li
通讯作者：
Liangliang Xiong;Jianhua Liu;Mei Yu;Song-mei Li
影响因子：
13.6
作者：
Shen, Lu;Zhao, Wenjie;Miao, Lijing
通讯作者：
Miao, Lijing
影响因子：
6.6
作者：
Miszczyk, A.;Darowicki, K.
通讯作者：
Darowicki, K.
影响因子：
6
作者：
Kumari, P. Preethi;Shetty, Prakash;Rao, Suma A.
通讯作者：
Rao, Suma A.