CAJ | 학술논문

目的：合成增甘膦,研究增甘膦及其复配液缓蚀性能。方法以亚磷酸、甲醛、甘氨酸为原料,在酸性条件下,合成增甘膦。通过塔菲尔曲线法和电化学阻抗谱,测试酸性条件下LY12硬铝在增甘膦溶液中的缓蚀性能,并与同类有机膦系缓蚀剂氨基三甲叉膦酸( ATMP)进行比较。同时,在碱性条件下,测试LY12硬铝在增甘膦复配液中的缓蚀性能。结果当pH=1,增甘膦缓蚀液质量分数为0.5%时,缓蚀率可达90%。在相同酸性条件及缓蚀剂含量下,增甘膦缓蚀效果较ATMP好。在碱性条件下,增甘膦单独使用缓蚀效果不佳,与三乙醇胺复配后缓蚀效果较好。当增甘膦与三乙醇胺复配含量为0.5%(质量分数)三乙醇胺+0.4%(质量分数)增甘膦时,LY12硬铝在pH=8.7体系中的缓蚀率为65.5%。结论增甘膦单独使用,在酸性条件下有很好的缓蚀效果；与三乙醇胺复配后,在碱性条件下也有较好的缓蚀效果。
목적：합성증감련,연구증감련급기복배액완식성능。방법이아린산、갑철、감안산위원료,재산성조건하,합성증감련。통과탑비이곡선법화전화학조항보,측시산성조건하LY12경려재증감련용액중적완식성능,병여동류유궤련계완식제안기삼갑차련산( ATMP)진행비교。동시,재감성조건하,측시LY12경려재증감련복배액중적완식성능。결과당pH=1,증감련완식액질량분수위0.5%시,완식솔가체90%。재상동산성조건급완식제함량하,증감련완식효과교ATMP호。재감성조건하,증감련단독사용완식효과불가,여삼을순알복배후완식효과교호。당증감련여삼을순알복배함량위0.5%(질량분수)삼을순알+0.4%(질량분수)증감련시,LY12경려재pH=8.7체계중적완식솔위65.5%。결론증감련단독사용,재산성조건하유흔호적완식효과；여삼을순알복배후,재감성조건하야유교호적완식효과。
ABSTRACT:Objective To synthesize glyphosine and study the corrosion inhibition performance of glyphosine and its mixture. Methods Glyphosize was synthesized with phosphate, formaldehyde and glycine in acidic solution. The corrosion inhibition per-formance of LY12 alloy in glyphosine solution under acidic condition was studied by Tafel curves and electrochemical impedance spectroscopy. And glyphosine was compared with the similar phosphonic acid, i. e. , amino trimethylene phosphonic acid ( AT-MP). Besides, the corrosion inhibition performance of LY12 alloy was studied in glyphosine solution. Results When the pH=1, the mass concentration of glyphosine was 0. 5%, the corrosion inhibition rate was up to 90%. And the corrosion inhibition effect of glyphosine solution was superior to ATMP under the same acidity and the same concentration of corrosion inhibitor. The corrosion inhibition effect of glyphosine was not ideal while used alone in alkaline condition. However, when it was mixed with trolamine, the corrosion inhibition effect was preferable. When the pH=8. 7 and the built-up concentration was 0. 5% trolamine with 0. 4%glyphosine, the corrosion inhibition rate of LY12 alloy was up to 65. 5%. Conclusion The corrosion inhibition effect of glyphosine was excellent when used alone under acidic condition. Its corrosion inhibition effect was preferable when it was mixed with trola-mine under alkaline condition.