摘要
采用失重法、表面观察法、极化曲线法、氩离子刻蚀法和 XPS分析法研究 Zn(H2 PO4 ) 2 - N[CH2 CH2 OPO(OH) 2 ]3在海水中对碳钢的协同效应与缓蚀机理。结果发现 :50 % Zn(H2 PO4 ) 2 +50 % N[(CH2 CH2 OPO(OH) 2 ]3(XM- 30 3)在海水中对碳钢具有明显的协同缓蚀效应。 50 % Zn(H2 PO4 ) 2 +50 % N[CH2 CH2 OPO(OH) 2 ]3(XM- 30 3)主要为阴极抑制型缓蚀剂。缓蚀膜主要为沉积膜 ,膜层的主要组分有 Zn3(PO4 ) 2 、Fe PO4 、Fe2 O3和 N[CH2 CH2 OPO(OH) 2 ]3等。
The synergistic effect and inhibition mechanism of Zn(H 2PO 4) 2 N[CH 2CH 2OPO(OH) 2] 3 for carbon steel in sea water were studied by means of weight loss, surface observation, polarization curves, argon ion sputtering and XPS. The results revealed that 50% Zn(H 2PO 4) 2+ 50% N[CH 2CH 2OPO(OH) 2] 3 (XM 303) had obvious synergistic inhibition effect on corrosion of carbon steel in sea water. 50% Zn(H 2PO 4) 2+50% N[CH 2CH 2OPO(OH) 2] 3(XM 303) mainly was a cathodic inhibitor. The inhibitor film which was consisted of Zn(PO 4) 2 FePO 4、Fe 2O 3 and N[CH 2CH 2OPO(OH) 2] 3 mainly was a precipitation film.
出处
《腐蚀与防护》
CAS
2000年第4期160-163,共4页
Corrosion & Protection
关键词
缓蚀剂
Zn(H2PO4)2
协同效应
缓蚀机理
碳钢
Inhibitor Zn(PO 4) 2 N[CH 2CH 2OPO(OH) 2] 3 Synergistic effect Inhibition Mechanism
