聚吡咯/纳米CeO_2复合材料的制备及防腐性能研究  

Preparation and Anticorrosive Performance of Polypyrrole/Nano-CeO_2 Composite

作　　者：王发龙[1] 郑燕升[1,2] 莫春燕[1] 胡传波[1] 莫倩[1] 

机构地区：[1]广西科技大学生物与化学工程学院,广西柳州545006 [2]广西科技大学鹿山学院,广西柳州545616

出　　处：《塑料工业》2014年第12期119-122,共4页China Plastics Industry

基　　金：广西教育厅科研项目(2014GXNSA013134)

摘　　要：以吡咯单体为原料,三氯化铁为氧化剂,加入纳米二氧化铈(CeO2)粒子通过化学氧化法制备了聚吡咯(PPy)/纳米CeO2复合材料。利用扫描电子显微镜、X射线衍射仪、紫外-可见分光光度计、傅里叶变换红外光谱仪对其进行了结构表征。并将涂覆分别含聚氨酯(PU)涂层、PPy/PU复合涂层、PPy/CeO2/PU复合涂层的碳钢片,浸泡在质量分数3.5%的Na Cl溶液中,通过开路电位和极化曲线研究耐腐蚀性能。结果表明,含有PPy/CeO2/PU复合涂层的防腐效果最佳,其腐蚀电位最大,腐蚀电流密度最小,腐蚀速率最小。With pyrrole monomer as raw materials,iron trichloride as oxidant and nano-CeO2,polypyrrole/nano-CeO2 composite was prepared by chemical oxidation polymerization.The structure of the product was characterized by scanning electron microscopy,X-ray diffraction,UV-Vis spectroscopy,and IR spectroscopy.The carbon steel coated with polyurethane,polypyrrole/polyurethane and polypyrrole/nanoCeO2/polyurethane composite coating was soaked in mass fraction of 3.5% NaCl solution,the anticorrosive performance of the coating was researched,with open circuit potential and polarization curves.The results showed that the anticorrosive performance of polypyrrole/nano-CeO2 composite coating was optimum,the corrosion of open circuit potential was the maximum,the corrosion density and rate was the minimum.

关 键 词：聚吡咯 纳米二氧化铈 开路电位 防腐 

分 类 号：TB332[一般工业技术—材料科学与工程] TQ320.1[化学工程—合成树脂塑料工业]