聚苯胺-氟碳乳液复合防腐蚀涂料研究  

Study on Composite Anticorrosion Coatings of Polyaniline and Fluorocarbon Emulsion

作　　者：李玉峰[1] 高晓辉[1] 

机构地区：[1]齐齐哈尔大学化学与化学工程学院,黑龙江齐齐哈尔161006

出　　处：《化工生产与技术》2006年第6期1-3,共3页Chemical Production and Technology

基　　金：黑龙江省教育厅科学技术研究项目(11511434)

摘　　要：以聚苯乙烯磺酸(PSSA)为掺杂剂,利用原位插层聚合方法制备了聚苯胺(PANI)-蒙脱土(MMT)复合材料,对其结构进行了XRD表征,测试了变温电导率;并以水性氟碳乳液为成膜物,制备了水分散体PANI-氟碳乳液复合防腐涂料,利用电化学交流阻抗谱和Tafel曲线考察了对Q235的防腐蚀性能。试验结果表明:PANI-MMT复合材料中的蒙脱土以片层剥离状态存在的;PSSA-PANI-MMT复合材料具有稳定的变温电导率;PANI-MMT-FC复合涂料具有最高的阻抗和腐蚀电位(-0.42V)以及最低的腐蚀电流密度(10-8.6A/cm2)。对Q235有很好的防腐蚀效果。Polystyrene sulfonic acid (PSSA) doped water-soluble polyaniline (PANI)/montmorillonite (MMT) clay composites were synthesized by intercalation polymerization in aqueous medium and characterized by XRD and temperature-dependent dc conductivity. Composite anticorrosion coatings of PANI/MMT and waterborne fluorocarbon emulsion (FC) were first prepared. Results of electrochemical impedance spectroscopy (EIS) and Tafel plot showed PANI/MMT/FC composite coatings had good anticorrosion properties to A3 steel. It's impedance and corrosion potential was higher and the corrosion current density was lower.

关 键 词：聚苯胺 氟碳乳液 蒙脱土 聚苯乙烯磺酸 防腐蚀 涂料 

分 类 号：TQ630.7[化学工程—精细化工]