CAJ | 학술논문

以水为溶剂，苯乙酮、甲醛、二乙胺为原料，苄基三乙基氯化铵为相转移催化剂经醛酮胺缩合得到曼尼希碱酸化缓蚀剂。采用挂片失重法、交流阻抗法考察了该曼尼希碱在酸性腐蚀环境下的缓蚀性能。结果表明，该曼尼希碱缓蚀剂是以抑制阳极过程为主的混合型缓蚀剂。缓蚀率随曼尼希碱加入量的增加而增大，当缓蚀剂的加入量体积分数为0.7%时，缓蚀率高达98.5%；随着腐蚀环境温度的升高，缓蚀率有所下降，但在90℃时仍具有较高的缓蚀率；能够有效抑制盐酸对20#碳钢的腐蚀。
이수위용제，분을동、갑철、이을알위원료，변기삼을기록화안위상전이최화제경철동알축합득도만니희감산화완식제。채용괘편실중법、교류조항법고찰료해만니희감재산성부식배경하적완식성능。결과표명，해만니희감완식제시이억제양겁과정위주적혼합형완식제。완식솔수만니희감가입량적증가이증대，당완식제적가입량체적분수위0.7%시，완식솔고체98.5%；수착부식배경온도적승고，완식솔유소하강，단재90℃시잉구유교고적완식솔；능구유효억제염산대20#탄강적부식。
A acidizing corrosion inhibitor of Mannich base was synthesized by Mannich reaction with ace-tophenone,formaldehyde,diethylamine in water,and benzyltriethyl ammonium chloride as phase-transfer-catalyst(PTC). The evaluation of the corrosion behaviour was studied by using electrochemical impedance spectroscopy and weight loss method. Results show that the studied inhibitor was a kind of mixture which mainly controlled anodic process,the corrosion inhibition rate reached 98. 5% above when the concentra-tion was 0. 7% . The corrosion inhibition rate decreases gradually with the rise of temperature,but it which can inhibit effectively the corrosion of hydrochioric acid to the carbon steel.