In-situ reduced graphene oxide-polyvinyl alcohol composite coatings as protective layers on magnesium substrates

被引：0
作者：
Xingkai Zhang [1 ]
Yan Zhou [1 ]
Junyan Zhang [1 ]
机构：
[1] R & D Center of Lubricating and Protecting Materials,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences
来源：
Progress in Natural Science:Materials International | 2017年 / 27卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Graphene oxide; in-situ reduction; Polyvinyl alcohol; Composite coatings; Corrosion resistance;
D O I：
暂无
中图分类号：
TG174.4 [金属表面防护技术];
学科分类号：
080503 ;
摘要：
A simple and feasible method was developed to fabricate in-situ reduced graphene oxide-polyvinyl alcohol composite(GO-PVA) coatings as protective layers on magnesium substrates.Polyvinyl alcohol was used as an in-situ reductant to transform GO into reduced GO.Contiguous and uniform GO-PVA coatings were prepared on magnesium substrates by dip-coating method,and were further thermally treated at 120 ℃ under ambient condition to obtain in-situ reduced GO-PVA coatings.Owing to the reducing effect of PVA.thermal treatment at low temperature led to effective in-situ reduction of GO as confirmed by XRD,Raman,FTIR and XPS tests.The corrosion current density of magnesium substrates in 3.5 wt%NaCl solution could be lowered to its 1/25 when using in-situ reduced GO-PVA coatings as protective layers.
引用
收藏
页码：326 / 328
页数：3
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