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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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阳离子聚丙烯酰胺水分散液的制备及表征
DOI: 10.3724/SP.J.1105.2013.12329, PP. 1013-1019
Keywords: 阳离子聚丙烯酰胺,水分散液,分散聚合,污泥脱水
Abstract:
通过丙烯酰胺(AM)与甲基丙烯酰氧乙基三甲基氯化铵(DMC)的水相分散共聚合制得阳离子聚丙烯酰胺(CPAM)水分散液.以红外光谱(FTIR),核磁共振(1H-NMR),光学显微照片(OP)证实了产物结构与形成机理;研究了引发剂类型及用量,无机盐选择及用量,分散剂用量及单体配比对CPAM转化率、分子量及分散液黏度的影响.结果表明,采用2,2'-偶氮二［2-(2-咪唑啉-2-代)丙烷］二氢氯化物(VA-044)和过硫酸钾(KPS)/甲醛次硫酸氢钠(SFS)复合引发剂,在硫酸铵浓度28%~32%,同时添加少量硫酸锂或氯化钠,分散剂0.5%~1.5%(所有物质用量皆对总反应体系而言)条件下,可在高转化率同时得到分子量较高、流动性良好的CPAM水分散液.
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