Synthesis and Scale Inhibition Performance of Serine - Modified Polyepoxysuccinic Acid Scale Inhibitor

LIU Xin - hua, GUAN Jun - xia, WANG Li - hong, FU Zhan - da, GAO Yu - hua, WEI Jin - fang, WANG Lei, YANG Yong, LI Wen - tao

doi:10.16577/j.issn.1001-1560.2022.0221

Materials Protection >

2022 , Vol. 55 >Issue 8: 95 - 101

DOI: https://doi.org/10.16577/j.issn.1001-1560.2022.0221

Synthesis and Scale Inhibition Performance of Serine - Modified Polyepoxysuccinic Acid Scale Inhibitor

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(1. Department of Chemistry, Tangshan Normal University, Tangshan 063000, China;2. Tangshan Key Laboratory of Green Specialty Chemicals, Tangshan 063000, China;3. Institute of Energy, Hebei Academy of Sciences, Shijiazhuang 050081,China)

Received date: 2022-03-10

Revised date: 2022-03-31

Accepted date: 2022-04-19

Online published: 2023-12-17

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Abstract

Polyepoxysuccinic acid (PESA) is a green and environmental scale inhibitor. Its application is limited due to its single functional group. In order to enhance its performance, an experiment was carried out by using serine (Ser) as the modifier to modify the PESA, and the optimal synthesis process conditions for the modification were investigated. The structure of the target product was characterized by Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (NMR). The thermal stability of the modified product was investigated through thermogravimetric experiment. Results showed that under the conditions that the temperature was 90 ℃, the mass ratio of polyepoxysuccinic acid to serine was 1.0∶0.8, and the action time was 2 h, the best scale inhibition performance of the polyepoxysuccinic acid derivative (Ser - PESA) could be obtained. When the dosage of PESA and Ser - PESA was 10 mg/L, the scale inhibition rate against calcium carbonate could reach 86% and 96% respectively. The FTIR and SEM images of calcium scale showed that the structure of calcium carbonate was changed from stable calcite structure to unstable vaterite structure after adding PESA and Ser - PESA.

Key words： polyepoxysuccinic acid; serine; scale inhibition; modified copolymer; scale inhibition mechanism

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LIU Xin - hua, GUAN Jun - xia, WANG Li - hong, FU Zhan - da, GAO Yu - hua, WEI Jin - fang, WANG Lei, YANG Yong, LI Wen - tao . Synthesis and Scale Inhibition Performance of Serine - Modified Polyepoxysuccinic Acid Scale Inhibitor[J]. Materials Protection, 2022 , 55(8) : 95 -101 . DOI: 10.16577/j.issn.1001-1560.2022.0221

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