钼酸钠对磺化聚苯胺/钙基膨润土复合材料的腐蚀性影响的研究  

Effect of Sodium Molybdate on the Corrosivity of Sulfonated Polyaniline/Ca-Bentonite Composites

作　　者：蒋磊[1] 裴锋[2] 李多生[1] 刘志雷[1] 刘光明[1] 李锦锦[1] 刘欣[2] 田旭[2] JIANG Lei PEI Feng Li Duo-sheng LIU Zhi-lei Liu Guang-ming Li Jin-jin Liu Xin TIAN Xu(Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China Jiangxi Electric Power Research Institute, Nanehang 330096, China)

机构地区：[1]南昌航空大学材料科学与工程学院,南昌330063 [2]国网江西省电力科学研究院,南昌330096

出　　处：《南昌航空大学学报（自然科学版）》2017年第2期56-61,共6页Journal of Nanchang Hangkong University(Natural Sciences)

基　　金：国网江西省电力科学学院资助项目(SGTYHT/14-JS-190);南昌航空大学研究生创新基金(YC2015006)

摘　　要：本文对添加不同质量分数的钼酸钠的磺化聚苯胺(SPAN)/钙基膨润土复合材料进行加速腐蚀实验。通过对腐蚀试片Q235的宏观形貌分析和年腐蚀速率、保护度计算及XRD和SEM检测,来评价钼酸钠对复合材料的腐蚀性的影响。实验结果表明:钼酸钠的加入,可降低SPAN/钙基膨润土复合材料的腐蚀速率;不同质量分数的钼酸钠对复合材料的腐蚀形貌和腐蚀速率有很大影响,当钼酸的质量分数为1.5%时,复合材料可在Q235表面形成一层由MoO_3、FeMoO_4、Fe_2O_3为主要成分的致密保护膜,对Q235的腐蚀起到抑制作用,此时其腐蚀速率最低,对Q235的保护度可达70.76%。This paper focuses on adding different concentrations sulfonated polyaniline in sodium molybdate（ SPAN）/calcium bentonite composites for the accelerated corrosion test. The corrosive macro and micro morphology and corrosion rate,protection degree calculation of Q235 was characterized by XRD,SEM corrosion-test respectively. It was used to evaluate the influence of sodium molybdate on corrosion of（ SPAN）/calcium bentonite composites. The results show that corrosion resistance of SPAN/calcium bentonite composite can be reduced by adding sodium molybdate. It has great influence on the corrosion morphology and corrosion rate of SPAN/calcium bentonite composite based on different concentrations of sodium molybdate. When the mass fraction of molybdate is1. 5%,composites can be formed into a compact protective film layer on the surface of Q235 which is composed of MoO3、FeMoO4、Fe2O3. They greatly inhibited the corrosion of Q235,and the corrosion rate is the lowest. Its protection degree of Q235 is up to70. 76%.

关 键 词：钼酸钠 SPAN/钙基膨润土 质量分数 腐蚀速率 

分 类 号：TD985[矿业工程—选矿]