第43第9期 2013年9月
摘
涂料工业
PAINT&COATINGSINDUSTRY
聚苯胺/铬酸锶复合材料的制备及
其环氧涂层防腐蚀行为研究
张守一，林旭峰，钱军（华东理工大学材料科学与工程学院特种功能高分子材料及相关技术教育部重点实验室，上海200237）
Vol.43No.9 Sep.2013
要：利用原位聚合的方法合成了不同质量比的聚苯胺/铬酸锶复合材料，使用扫描电镜
（SEM）、透射电镜（TEM）、傅里叶变换红外光谱（FT-IR）和X射线衍射（XRD）对复合材料进行了表征，并在不锈钢片上制备了聚苯胺/铬酸锶复合材料的环氧涂层，利用电化学工作站和盐雾试验箱测试其防腐性能。测试结果表明：聚苯胺/铬酸锶复合材料的防腐效果优于聚苯胺，且当复合材料中聚苯胺与铬酸锶的质量比为1：1时.防腐蚀性能最好，该复合材料环氧涂层的腐蚀电位较聚苯胺环氧涂层提高30mV.腐蚀电流密度下降一半，降低成本的同时提高了其防腐性能。
关键词：聚苯胺：铬酸锶：复合材料：环氧树脂；防腐性能
文献标识码：A
中图分类号：TO635.2
文章编号：0253-4312（2013）09-0007-07
PreparationandAnticorrosivePerformanceofthe Polyaniline/Strontium Chromate Composites
ZhangShouyi,LinXufeng,QianJun
(KeyLaboratory of SpeciallyFunctional Polymeric Materials and RelatedTechnolog)
of theMinistry of Education,School of MaterialsScience andEngineering East China University of Science and Technology,Shanghai 200237,China
Abstract：Epoxy coating incorporating polyaniline/strontium chromate composites(PANV/ SrCrO,) synthesized by in -situ polymerization was found to exhibit excellent corrosion resis-tancesuperiorto polyaniline（PANI)in aggressiveenvironments.Thecompositeswerechar-acterized by using SEM,TEM,FT-IRandXRD,while the corrosion studies werecarried out on steelplates coatedwithepoxycoating containingPANI/SrCrO,compositespreparedwith differentconcentrations of SrCrOg.Whenthemassratioof PANI/SrCrO,was1:1,thecom-posite coating exhibited the best anticorrosive property. Its corrosion potential was higher than epoxy polyaniline coating by 30 mV and the corrosion current density was reduced by a half which could reduce cost and improve anti -corrosion performance.
Key Words:polyaniline; strontium chromate; composites; epoxy resin; corrosion protec-tion performance
聚苯胺(PANI)具有多重导电状态，电导率高，化学稳定性和化学还原性好，且成本低，引起了广泛关
注。导电聚合物能够广泛应用于各种领域，包括电子、电化学元器件，光化学电池、充电电池，传感器和
探索开发