CAJ | 학술논문

以L-丙氨酸、鸟嘌呤、二碳酸二叔丁酯（ BOC）为原料，二环己基二亚胺为脱水剂，4-二甲氨基吡啶为催化剂，合成鸟嘌呤-丙氨酸衍生物。在0.1 mol/L的盐酸条件下，用鸟嘌呤-丙氨酸衍生物作为缓蚀剂，采用失重法、电化学极化曲线法、Nyquist阻抗谱法，对X80碳钢进行缓蚀性能研究。结果表明，鸟嘌呤-氨基酸缓蚀剂的缓蚀效率随着加量的增加而升高，在30℃，0.2 g时达到93.8%。极化曲线法测试结果表明，该缓蚀剂是同时受阴极和阳极共同控制的混合控制型缓蚀剂。电化学阻抗谱测试结果表明该缓蚀剂吸附在钢铁表面，形成了一层有效的保护膜，其吸附类型是化学吸附为主，并且伴随着物理吸附。
이L-병안산、조표령、이탄산이숙정지（ BOC）위원료，이배기기이아알위탈수제，4-이갑안기필정위최화제，합성조표령-병안산연생물。재0.1 mol/L적염산조건하，용조표령-병안산연생물작위완식제，채용실중법、전화학겁화곡선법、Nyquist조항보법，대X80탄강진행완식성능연구。결과표명，조표령-안기산완식제적완식효솔수착가량적증가이승고，재30℃，0.2 g시체도93.8%。겁화곡선법측시결과표명，해완식제시동시수음겁화양겁공동공제적혼합공제형완식제。전화학조항보측시결과표명해완식제흡부재강철표면，형성료일층유효적보호막，기흡부류형시화학흡부위주，병차반수착물리흡부。
Guanine,L-alanine and di-t-butyl dicarbonate( BOC)were used as raw materials,N,N’-dicy-clohexylcarbodiimide was used as dehydrating agent and 4-dimethylaminopyridine was used as catalyst for the synthesis of guanine-L-alanine derivative( GLAD). The inhibition performance was investigated as a corrosion inhibitor for X80 pipeline steel in 0. 1 mol/L hydrochloric acid by weight loss,AC impedance and electrochemical polarization curve method. The results indicated that the synthetic ALAR is a good in-hibitor and its inhibition efficiency attains 93. 8% with the addition of 0. 2 g. Polarization studies showed that GLAD acts as a inhibitor is a mixed corrosion inhibitor which was controled by the cathode and the anode. The AC impedance showed that the inhibitor was adsorbed on the steel surface and formed an ef-fective protection film. The adsorption is mainly chemical adsorption and accompanied physical adsorp-tion.