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合成一种新型三氮唑化合物:3-(4-氟基苯)-1-4-(1,2,4-三氮唑-1-甲氧基)-苯-丙烯酮(FTPP),并通过失重、动电位极化、交流阻抗及扫描电镜等方法,研究其在1 mol/L HCl溶液中对Q235碳钢的缓蚀效果。结果表明,在1 mol/L HCl溶液中,FTPP的缓蚀性能有赖于缓蚀剂的浓度,当缓蚀剂浓度达到1 mmol/L时缓蚀效率达91.4%,能同时抑制碳钢腐蚀的阴、阳极反应过程,该缓蚀剂是一种混合型缓蚀剂.失重实验与电化学实验所获得的结果具有很好的一致性。FTPP化合物在碳钢表面上的吸附过程为放热过程,其在碳钢表面的吸附服从Langmuir等温式,属于物理和化学吸附。
Synthesis of a novel triazole compound: 3- (4-fluorophenyl) -1-4- (1,2,4-triazole-1-methoxy) -benzene-propenone (FTPP) The corrosion inhibition of Q235 carbon steel in 1 mol / L HCl solution was studied by means of weight loss, potentiodynamic polarization, AC impedance and scanning electron microscopy. The results showed that the corrosion inhibition performance of FTPP in 1 mol / L HCl solution depends on the concentration of inhibitor, and the inhibition efficiency reaches 91.4% when the inhibitor concentration reaches 1 mmol / L, which can inhibit the corrosion of carbon steel Cathode and anode reaction process, the corrosion inhibitor is a mixed type corrosion inhibitor.The results of the weight loss experiment and the electrochemical experiment are in good agreement. The adsorption process of FTPP on the surface of carbon steel is an exothermic process. The adsorption on the surface of carbon steel obeys Langmuir isotherm and belongs to physical and chemical adsorption.