纳米Fe_3O_4-K_2O·3Al_2O_3·6SiO_2·2H_2O金色亮粉复合颗粒改性环氧涂层用于H68黄铜涂层的耐蚀性  

Anti-corrosion Performance of Glitter Gold Color Epoxy-based Composite Coating on H68 Brass Modified by Nano-Fe_3O_4-K_2O·3Al_2O_3·6SiO_2·2H_2O

作　　者：裴国平[1] 周琼宇[1] 钟庆东[1] 顾帅帅[1] 纪丹[1] 

机构地区：[1]上海大学上海市现代冶金与材料制备重点实验室,上海200072

出　　处：《腐蚀与防护》2015年第1期6-10,44,共6页Corrosion & Protection

基　　金：国家自然科学基金(50571059;50615024);教育部新世纪优秀人才支持计划(NCET-07-0536)

摘　　要：利用机械混合的方法制备了纳米Fe3O4-K2O·3Al2O3·6SiO2·2H2O环氧复合涂层,并采用HV显微硬度试验,划格测试,电化学阻抗谱,极化曲线等方法研究了这种新型涂层的显微硬度、附着力和耐腐蚀性能。结果表明,这种具有黄铜色泽的新型复合环氧材料的显微硬度和附着力与环氧涂层相比略有增加,并在人工酸雨介质中具有良好的防腐蚀性能。因此,这种新型复合涂层材料是一种理想的黄铜保护材料。An epoxy-based composite coating containing various combinations of magnetic iron oxide（Fe3O4）nanoparticles and glitter gold color powder（K2O·3Al2O3 ·6SiO2 ·2H2O）were prepared by mechanical mixing method.Microhardness,adhesion and corrosion resistance of the new composites were studied by Vickers′hardness test（HV test）,cross-cut test,electrochemical impedance spectroscopy（EIS）and polarization curves,respectively.The results showed that the microhardness and adhesion of the novel composites containing fillers slightly increased compared with those of epoxy.The results also pointed out that the new composites had good anti-corrosion properties in artificial acid rainwater（ARW）.Hence,those new composites can be applied to protective coating on brass ideally.

关 键 词：防腐蚀 人工酸雨 环氧复合涂层 电化学阻抗谱 FE3O4纳米颗粒 

分 类 号：TG174[金属学及工艺—金属表面处理]