Enhanced corrosion resistance of epoxy resin coating via addition of CeO_(2) and benzotriazole  被引量:1

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作  者:Xu Han Ruijie Guo Baolong Niu Hong Yan 

机构地区:[1]College of Materials Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,China [2]Key Laboratory of Interface Science and Engineering in Advanced Materials,Ministry of Education,Taiyuan University of Technology,Taiyuan 030024,China

出  处:《Chinese Journal of Chemical Engineering》2024年第3期89-96,共8页中国化学工程学报(英文版)

基  金:financially supported by the National Natural Science Foundation of China(22178242);the Shanxi Provincial Key Research and Development Project(202102040201009).

摘  要:The use of fillers to enhance the corrosion protection of epoxy resins has been widely applied.In this work,cerium dioxide(CeO_(2))and benzotriazole(BTA)were introduced into an epoxy resin to enhance the corrosion resistance of Q235 carbon steel.Scanning electron microscopy results indicated that the CeO_(2) grains were rod-like and ellipsoidal in shape,and the distribution pattern of BTA was analyzed by energy dispersive spectroscope.The dynamic potential polarization curve proved the excellent corrosion resistance of the composite epoxy resin with CeO_(2) and BTA co-addition,and electrochemical impedance spectroscopy test analysis indicated the significantly enhanced long-term corrosion protection performance of the composite coating.And the optimal protective performance was provided by the coating containing 0.3%(mass)CeO_(2) and 20%(mass)BTA,which was attributed to the barrier performance of CeO_(2) particles and the chemical barrier effect of BTA.The formation of corrosion products was analyzed using X-ray diffraction.In addition,the corrosion resistance mechanism of the coating was also discussed in detail.

关 键 词:BENZOTRIAZOLE Cerium dioxide Corrosion resistance Carbon steel Epoxy resin coating Preparation 

分 类 号:TG174.4[金属学及工艺—金属表面处理]

 

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