Yang Tao, Cui Yanan, Li Zeshan, Zeng Hui, Luo Shizhong, Li Weihua
Key Laboratory of Sensor Analysis of Tumor Marker of Education Ministry, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China; College of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai, 519082, China.
Key Laboratory of Sensor Analysis of Tumor Marker of Education Ministry, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China.
J Hazard Mater. 2018 Sep 5;357:475-482. doi: 10.1016/j.jhazmat.2018.06.038. Epub 2018 Jun 19.
In this paper, the 3, 4, 9, 10-perylene tetracarboxylic acid-graphene (PTCA-G) composite was synthesized and the corrosion protection property of epoxy coating-coated Q235 steel containing PTCA-G composite was investigated. The results of Fourier transform infrared spectroscopy (FT-IR) proved that 3, 4, 9, 10-perylene tetracarboxylic acid (PTCA) and graphene (G) were combined via π-π interactions and hydrophobic forces between PTCA and G. The results of electrochemical tests indicated that with additives of sole PTCA, sole G and PTCA-G composite, the corrosion resistance of epoxy coating was increased compared with pure epoxy coating. And the most significant improved corrosion resistance of PTCA-G/epoxy coating might be attributed to the good dispersion and barrier performance of PTCA-G composite in the epoxy coating. Besides, compared with the corrosion protection property of PTCA-G/epoxy coating with other volume ratios, the corrosion resistance of epoxy coating containing PTCA-G composite with 10:4 vol ratio of PTCA and G was the best. It might be attributed to the excellent barrier and dispersion properties of PTCA-G composite with 10:4 vol ratio of PTCA and G.
本文合成了3,4,9,10-苝四羧酸-石墨烯（PTCA-G）复合材料，并研究了含PTCA-G复合材料的环氧涂层对Q235钢的防腐性能。傅里叶变换红外光谱（FT-IR）结果证明，3,4,9,10-苝四羧酸（PTCA）与石墨烯（G）通过PTCA与G之间的π-π相互作用和疏水力结合。电化学测试结果表明，添加单独的PTCA、单独的G和PTCA-G复合材料后，环氧涂层的耐蚀性比纯环氧涂层有所提高。PTCA-G/环氧涂层耐蚀性的最显著提高可能归因于PTCA-G复合材料在环氧涂层中的良好分散性和阻隔性能。此外，与其他体积比的PTCA-G/环氧涂层的防腐性能相比，PTCA与G体积比为10:4的含PTCA-G复合材料的环氧涂层的耐蚀性最佳。这可能归因于PTCA与G体积比为10:4的PTCA-G复合材料具有优异的阻隔和分散性能。
