摘要
缓蚀剂 Ｋ Ａ０１ 是室内合成的一种有机缓蚀剂。通过静态腐蚀检测和电化学测量对缓蚀剂 Ｋ Ａ０１ 和硫脲及其复配物在１５ ％ 和２８ ％ 磷酸中对 Ａ３ 钢的缓蚀性能进行了评价，评价结果表明 Ｋ Ａ０１ 和硫脲在３０ ℃和９０ ℃的１５ ％ 和２８ ％ 磷酸中单独使用时具有较好的缓蚀作用，而二者复配使用时缓蚀效果明显增加；在９０ ℃的１５ ％ 和２８ ％ 磷酸中加入１ ．８ ％ Ｋ Ａ０１ 和０ ．２ ％ 硫脲时 Ａ３ 钢的腐蚀速度低于１ ｇ／ ｍ２·ｈ ，缓蚀率高达９９ ．８ ％ 以上；电化学测量结果表明 Ｋ Ａ０１ 和硫脲是以阴极控制为主的缓蚀剂，而二者的复配物则表现出阴阳极混合控制的特征。
KA 01 is a laboratory sample of Mannich's base type organic corrosion inhibitor for use in acidic media. In this paper the inhibitory property of KA 01, thiourea and KA 01+thiourea in 15% and 28% phosphoric acid for carbon steel A3 is studied in static corrosion experiments at 30℃ and 90℃. It is shown that KA 01 is quite a good inhibitor and KA 01+thiourea are much better in such media. The optimum mass ratio of KA 01 to thiourea is 9 to 1. Electrochemical measurements illustrate that single KA 01 and thiourea are anode controlling inhibitors while their mixture controls both cathodic and anodic corrosion processes.
出处
《油田化学》
CAS
CSCD
北大核心
1999年第2期118-120,127,共4页
Oilfield Chemistry
关键词
硫脲
碳钢
缓蚀剂
KA01
磷酸
缓蚀性
压裂液
Mannich's Base
Thiourea
Corrosion Inhibitors
Phosphoric Acid Solutions
Carbon Steel
