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Chemcial Industry and Engineering 2022, Vol. 39 Issue (5) :21-29    DOI: 10.13353/j.issn.1004.9533.20210355
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Optimization of synthesis process of itaconic acid copolymer and research on its scale inhibition performance
GAO He, JIANG Shuangshuang, MAO Lianshan
College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China

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Abstract The IA-AHPS-APEG was synthesized by free radical polymerization, using itaconic acid (IA), 3-allyloxy-2-hydroxy-1-propane (AHPS), and allyloxy polyethylene glycol (APEG) as monomers. The polymerization initiator dosage, reaction temperature and reaction time were optimized by mathematical model established using the central composite design method, combined with the static calcium carbonate scale test. The molecular structure of polymer IA-AHPS-APEG was analyzed by FT-IR technology. The changes of morphology and crystal structure of CaCO3 scale and CaSO4 scale were analyzed by TG, SEM and XRD techniques, and the scale inhibition mechanism of polymer IA-AHPS-APEG were explored. The results show that the optimized IA-AHPS-APEG can inhibit the normal growth of CaCO3 and CaSO4 crystals, and cause lattice distortion of CaCO3 crystals. Its maximum scale inhibition efficiency is 93.2% for CaCO3 and close to 100% for CaSO4.
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GAO He
JIANG Shuangshuang
MAO Lianshan
Keywordscenter composite design   CaCO3   CaSO4   inhibitor     
Received 2021-04-24;
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GAO He, JIANG Shuangshuang, MAO Lianshan.Optimization of synthesis process of itaconic acid copolymer and research on its scale inhibition performance[J]  Chemcial Industry and Engineering, 2022,V39(5): 21-29
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