Novel anticorrosion coatings prepared from polyaniline/graphene composites

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• 作者：Chi-Hao Chang ; Tsao-Cheng Huang ; Chih-Wei Peng ; Tzu-Chun Yeh ; Hsin-I Lu ; Wei-I Hung ; Chang-Jian Weng ; Ta-I Yang ; Jui-Ming Yeh
• 刊名：Carbon
• 出版年：2012
• 出版时间：November, 2012
• 年：2012
• 卷：50
• 期：14
• 页码：5044-5051
• 全文大小：886 K

文摘

We report on the exceptional application of polyaniline/graphene composites (PAGCs) for corrosion protection of steel. The composites display outstanding barrier properties against O₂ and H₂O compared with neat polyaniline and polyaniline/clay composites (PACCs). The conductive filler, 4-aminobenzoyl group-functionalized graphene-like sheets (ABF-G) with a relatively higher aspect ratio than organophilic clay nonconductive fillers, is a versatile platform for polymer grafting that promotes better dispersion of the graphite within the polymer matrix and lengthens the diffusion pathway that gases should effectively encounter. This concept can be used for other polymer/graphene composites.