Effective corrosion protection of magnetic microwave absorber with designed macromolecular network barrier

作     者：Qing-Qing Hu Liang Chai Ke Liang Yan-Xin Jiang Guang Yang Lin-Bo Zhang Liang-Jun Yin Xin Wang Tao Liu Hai-Peng Lu Long-Jiang Deng Qing-Qing Hu;Liang Chai;Ke Liang;Yan-Xin Jiang;Guang Yang;Lin-Bo Zhang;Liang-Jun Yin;Xin Wang;Tao Liu;Hai-Peng Lu;Long-Jiang Deng

作者机构：School of Electronic Science and Engineering and National Engineering Research Center of Electromagnetic Radiation Control MaterialsUniversity of Electronic Science and Technology of ChinaChengdu611731China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2023年第42卷第2期

页      面：558-571页

核心收录：

学科分类：08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：financially supported by the National Natural Science Foundation of China(Nos.U19A2096 51903030 52021001) 

主　　题：Carbonyl iron(CI) Corrosion protection Microwave absorption Fluorin-containing acrylate Cyclic voltammetry Corrosion process 

摘      要：Carbonyl iron(CI)particles as magnetic microwave absorption material often suffer from serious corrosion under corrosive environment which leads to performance *** this study,fluorin-containing acrylate type polymer network layers with thickness ranging from tens of nanometers to around one hundred nanometers were formed continuously around *** crosslinked coating layer(named FT)effectively increases CI’s thermal decomposition temperature by at least 34%.The FT-coated CI(named CI-FT)was able to resist both inorganic and organic corrosive media attacking efficiently compared with bare *** surface polymer network could also help CI withstand organic medium dissolution which proved the firmness of *** voltammetry(CV)test revealed that the coating layer could significantly reduce maximum oxidation current density of CI by more than 45 *** polarization study during CV tests also confirmed that thicker FT coating layer could help CI sample stabilize corrosion current ***,the surface coating also enhanced the impedance matching properties of CI as microwave absorber and the CI-FT samples demonstrated improved microwave absorption properties which degenerated little after corrosive medium soaking compared with that of CI.