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摘要
以丙烯酰胺、2-丙烯酰胺基-2-甲基丙磺酸为原料，以质量比为2∶1过硫酸钾和无水亚硫酸钠为引发体系，在高矿化度的条件下采用水分散聚合的方式制备出阴离子型丙烯酰胺水包水乳液，利用FT-IR及SEM等表征手段对乳液的结构和性能进行测试。结果表明，当丙烯酰胺的质量分数为14%、2-丙烯酰胺基-2-甲基丙磺酸的质量分数为3.5%、分散剂的质量分数为8%时，体系的增黏能力最好，且溶解性和稳定性良好。
Abstract
A cationic polyacrylamide water-in-water emulsion is synthesized through dispersion polymerization method in a high salinity water by using acrylamide and 2-acrylamide-2-methyl propanesulfonic acid (AMPS) as raw materials, adding dispersant, and using potassium persulfate and anhydrous sodium sulfite in a ratio of 2∶1 as initiator system.The obtained polymer is characterized by means of FT-IR and SEM to understand the structure and properties of the emulsion.The results show that the tackifying ability of the system is the best when the mass fractions of acrylamide, AMPS and dispersant is 14%, 3.5%, and 8%, respectively.The solubility and stability of the system are also good.
关键词
高矿化度
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稳定性
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溶解性
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增黏能力
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水包水乳液
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分散聚合
Key words
high salinity
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stability
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solubility
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tackifying ability
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water-in-water emulsion
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dispersion polymerization
Author summay
滕智子(1995-),男,硕士研究生,研究方向为油气田应用化学,291915850@qq.com
阴离子聚丙烯酰胺水包水乳液的制备[J].
现代化工, 2022, 42(2): 199-203 DOI:10.16606/j.cnki.issn0253-4320.2022.02.040
