| Corrosion of Calcium Rubber Coagulation Auxiliary Dispersant on Metal Electrode |
| Received:June 05, 2020 Revised:June 05, 2020 |
| DOI：10.12136/j.issn.1000-890X.2020.11.0868 |
| Key Words: rubber coagulation；auxiliary dispersant；calcium chloride；calcium lactate；calcium acetate；metal electrode；corrosion rate |
| Author Name | Affiliation | E-mail | | LIANG Liang | Guangdong University of Petroleum Technology | 3251088065@qq.com | | HUANG Guozhu | Guangdong University of Petroleum Technology | | | WU Huasheng | Guangdong University of Petroleum Technology | | | YANG Ying | Guangdong University of Petroleum Technology | | | SHI Bo* | Guangdong University of Petroleum Technology | shibosut@163.com |
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| Abstract: |
| The corrosion of calcium series rubber coagulation auxiliary dispersants calcium chloride，calcium lactate and calcium acetate at different temperatures and concentrations on metal electrodes was studied，including the corrosion rate，the micro-morphology and the chemical composition of the corrosion products of the corrosion electrode.The results showed that the corrosion rate of calcium lactate on the metal electrode was 0.033 mm·a-1 when its mass concentration was 0.01 at 85 ℃，which was much lower than that of calcium chloride（0.880 mm·a-1） under the same conditions.The corrosion degree of calcium lactate corrosion electrode surface was low，calcium lactate could replace calcium chloride as an auxiliary dispersant for rubber coagulation to reduce the corrosion of equipment and pipeline in rubber coagulation section. |
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