TỔNG HỢP VÀ HIỆU QUẢ ỨC CHẾ ĂN MÒN ĐỒNG CỦA MUỐI CỘNG HỢP BENZOTRIAZOLE-CYCLOHEXYLAMINE TRONG DUNG DỊCH NaCl
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Tóm tắt
SYNTHESIS AND CORROSION INHIBITION EFFECT OF BENZOTRIAZOLE CYCLOHEXYLAMINE COMBINED SALT ON COPPER M1 IN NaCl SOLUTION
This paper presents the corrosion inhibition effect of benzotriazole cyclohexylamine salt (BTA-CHA) dissolving in isopropanol (IPA) (3 wt %) on copper M1 in 3.5% NaCl solution. Electrochemical test results showed that BTA-CHA salt in IPA had better inhibition effect on copper M1 in 3.5% NaCl solution than free BTA in IPA. The protection effect on copper M1 in 3.5% NaCl solution increased gradually with increasing inhibitor concentration and reached over 92% at concentrations of ≥ 0.1% and 98.68% at concentrations of 2%. The protection effect determined according to the weight loss method on copper M1 of 0,1% inhibitor was 97.9% after 34 days of soaking the sample in 3.5% NaCl solution.
Từ khóa
Corrosion inhibitor, benzotriazole, cyclohexylamine, copper M1, neutral invenronment, chất ức chế ăn mòn, đồng M1, môi trường trung tính
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