CAJ | 학술논문

借助静态腐蚀失重法研究了硫脲/硫氰酸钾缓蚀剂的最佳配方及在5%盐酸、5%硫酸、5%硝酸中对20碳钢的缓蚀性能。结果表明，在5%盐酸中，只需加入0.2%的复合缓蚀剂（硫脲：硫氰酸钾=7：3），20碳钢材质的缓蚀率可以达到85.1%；在5%硫酸介质中，缓蚀率在复合缓蚀剂（硫脲：硫氰酸钾=5：5）为0.2%时达到最大，为87.3%；在5%硝酸溶液中，当复合缓蚀剂（硫脲：硫氰酸钾=7：3）的加入量为0.15%时，20碳钢的缓蚀率可达到99%。
차조정태부식실중법연구료류뇨/류청산갑완식제적최가배방급재5%염산、5%류산、5%초산중대20탄강적완식성능。결과표명，재5%염산중，지수가입0.2%적복합완식제（류뇨：류청산갑=7：3），20탄강재질적완식솔가이체도85.1%；재5%류산개질중，완식솔재복합완식제（류뇨：류청산갑=5：5）위0.2%시체도최대，위87.3%；재5%초산용액중，당복합완식제（류뇨：류청산갑=7：3）적가입량위0.15%시，20탄강적완식솔가체도99%。
The best formula and corrosion inhibition performances of the thiourea/potassium thiocyanate complex inhibitor on the 20 carbon steel were studied by static weight loss method. The results showed that the corrosion inhibition efficiency of 20 carbon steel in 5% HCl was 85 . 1% when the adding amount of complex inhibitor(weight ratio of thiourea to potassium thiocyanate,7:3)was 0. 2%. The corrosion in-hibition efficiency of 20 carbon steel in 5% H2 SO4 was 87. 3% when the adding amount of complex in-hibitor(weight ratio of thiourea to potassium thiocyanate,5:5)was 0. 2%,and the corrosion inhibition efficiency of 20 carbon steel in 5% HNO3 was 99% when the adding amount of complex inhibitor( weight ratio of thiourea to potassium thiocyanate,7:3)was 0. 15%.