The effect of varying carboxylic-group content in reduced graphene oxides on the anticorrosive properties of PMMA/reduced graphene oxide composites

被引：43
作者：
Chang, K. C. [1 ]
Ji, W. F. [1 ]
Li, C. W. [1 ]
Chang, C. H. [1 ]
Peng, Y. Y. [2 ,3 ]
Yeh, J. M. [1 ]
Liu, W. R. [4 ]
机构：
[1] Chung Yuan Christian Univ, Dept Chem, Ctr Nanotechnol & Biomed Technol, Chungli 32023, Taiwan
[2] Chung Yuan Christian Univ, Master Program Nanotechnol, Chungli 32023, Taiwan
[3] Chung Yuan Christian Univ, Ctr Nanotechnol, Chungli 32023, Taiwan
[4] Chung Yuan Christian Univ, Dept Chem Engn, Chungli 32023, Taiwan
来源：
EXPRESS POLYMER LETTERS | 2014年 / 8卷 / 12期
关键词：
polymer composites; PMMA; reduced graphene oxide; anticorrosion; XPS; CORROSION PROTECTION; POLYMER; NANOCOMPOSITES; COATINGS; CLAY; POLYANILINE; BARRIER; SHEETS; MMT;
D O I：
10.3144/expresspolymlett.2014.92
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
We present comparative studies on the effect of varying the carboxylic-group content of thermally reduced graphene oxides (TRGs) on the anticorrosive properties of as-prepared poly(methyl methacrylate) (PMMA)/TRG composite (PTC) coatings. TRGs were formed from graphene oxide (GO) by thermal exfoliation. The as-prepared TRGs were then characterized using Fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS). Subsequently, the PTC materials were prepared via a UV-curing process and then characterized using FTIR spectroscopy and transmission electron microscopy (TEM). PTC coatings containing TRGs with a higher carboxylic-group content exhibited better corrosion protection of a cold-rolled steel electrode that those with a lower carboxylic-group content. This is because the well-dispersed TRG with a higher carboxylic-group content embedded in the PMMA matrix effectively enhances the oxygen barrier properties of the PTC. This conclusion was supported by gas permeability analysis.
引用
收藏
页码：908 / 919
页数：12
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