摘要
To improve corrosion inhibition performance of copper foil with a novel two-step electrochemical modification processes,the surface of 35μm copper foils was coated with graphene oxide(GO)via electrochemical method at first step,then was further coated with 3-aminopropyltrimethoxysilane(APTS)at the second step.For the first step the copper foil acted as anode,and as cathode for the second one(we labeled it as E-GO).Optimum coating parameters for the preparation of E-GO coating are 5 V and 1 min with ratio of APTS/deionized water(DI)1.5/98.5(v/v).The physicochemical properties of modified coating were studied by X-ray diffraction(XRD),scanning electron microscopy(SEM)and hydrophilicity test.Electrochemical behavior of different samples were also investigated.The experimental results indicate that anti-corrosion performance is significantly improved with two-step modified coating.And E-GO coating shows more positive corrosion potential and the highest corrosion resistance rate than others according to the Tafel curve.It is also found that surface hydrophobicity of E-GO coating is significantly improved.
作者
师慧娟
唐云志
TAN Yuhui
LIAO Shuling
ZHANG Yusong
DU Pengkang
SHI Huijuan;TANG Yunzhi;TAN Yuhui;LIAO Shuling;ZHANG Yusong;DU Pengkang(School of Materials,Metallurgy and Chemical Engineering,Jiangxi University of Science and Technology,Ganzhou,341000,China)
基金
Funded by the National Natural Science Foundation of China(Nos.21671086 and 21761013)
the Ganzhou Key Research&Development Projects(Ganshikefa[2019]60)。
