Studies on Cationic Property of Quaternary Polyethyleneimine
In this paper, the inhibition efficiency of Quaternary Polyethyleneimine (QPEI) self-adsorbed films was studied by polarization curve and weight loss method. We made an intensive study of its anticorrosion mechanism for low carbon steel in different acid baths using Polyethyleneimine(PEI) and QPEI as inhibitor, respectively. Diatomite particles were surface-modified with PEI and QPEI, respectively, and their zeta potentials were measured. The morphologies and compositions of the polymer film on the steel surface were examined with the aids of SEM and XPS, respectively. Compared with PEI, the cationic property is stronger, and it is not influenced by the PH value of mediums. The zeta potential of diatomite particles surface-modified with QPEI remains higher positive in whole PH range. The above facts enough confirm that anticorrosion mechanism of QPEI for low carbon steel attributes to its possessing outstanding cationic property.
Anticorrosion mechanism polyethyleneimine quaternary ammonium salt zeta potential cationic polyelectrolyte
Xin Zhang Xue-Dong Wu Bao-Jiao Gao
Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences,Ningbo 315201, C Department of Chemical Engineering, North University of China, Taiyuan 030051, China
国际会议
11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)
青岛
英文
432-439
2010-09-25（万方平台首次上网日期，不代表论文的发表时间）