阳离子聚丙烯酰胺水包水乳液絮凝性能研究

Study on the flocculability of cationic polyacrylamide water-in-water emulsion

本文以聚乙二醇20000(PEG20000)为分散稳定剂,在过硫酸铵/亚硫酸氢钠(APS/SB)引发体系引发下,将丙烯酰胺(AM)和甲基丙烯酰氧乙基三甲基氯化铵(DMC)进行分散聚合得到了阳离子聚丙烯酰胺(CPAM)水包水乳液。考察了影响乳液稳定性的参数。结果表明:合成的CPAM乳液絮凝效果良好,絮凝效果主要受CPAM用量、CPAM相对分子质量、p H值及温度等因素影响。

Water-in-water type cationic polyacrylamide （CPAM） emulsions was made of acrylamide （AM） and methacrylatoethyl trimethyl ammonium chloride （DMC） by dispersion polymerization, using polyethylene gly- col 20000 （PEG20000） as dispersing stabilizer and ammonium persulfate-sodium bisulfate （APS/SB） as initiator. The influences of the factors on flocculability of CPAM were studied. The results show that the CPAM has better flocculating performance.The flocculation effect was mainly affected by pH,temperature, the dosage and relative molecular mass of CPAM.