阴离子型聚丙烯酰胺溶液粘度的影响因素及其稳定剂  

Influencing Factors of Anionic Polyacrylamide Solution and Stabilizers

作　　者：梁止水[1] 徐佩佩[1] 杨才千[1] 吴智仁[2] 高海鹰[1] 

机构地区：[1]东南大学土木工程学院,江苏南京210096 [2]江苏大学环境与安全工程学院,江苏镇江212013

出　　处：《环境科技》2015年第6期13-16,共4页Environmental Science and Technology

基　　金：国家科技支撑计划项目(2013BAC05B02);南京市科技发展计划项目(2014sc312035);江苏省普通高校学术学位研究生创新计划项目(KYLX15_0083)

摘　　要：考察了不同环境因素对阴离子聚丙烯酰胺(APAM)溶液稳定性的影响。通过粘度的变化反映各种因素对其稳定性的影响。结果表明:相对分子质量是决定APAM溶液粘度的主要因素,粘度随着相对分子质量的增加而成倍数增加;温度越高,其粘度随之下降;随着APAM溶液浓度的增大,分子间相互作用增强,分子间越容易形成链缠结,其粘度越大;无机盐的存在会使溶液粘度下降,0.1 mol/L的Ca^(2+)加入APAM溶液中,会导致溶液的粘度大幅度下降。对APAM溶液加入不同种类的稳定剂,研究其粘度对时间的依时性的实验结果表明,甘油(丙三醇)稳定效果最佳,该研究在泥浆处理领域具有极大的实用性和经济效益。The Influencing factors on stability of anionic polyacrylamide（APAM） solution were explored. The influence of environmental factor on the stability of the APAM solution was reflected by changes of the viscosity of its solution. It showed that： relative molecular weight was the main factor to demtermine the viscosity of its solution. Viscosity was doubled with the increase of relative molecular weight; The viscosity was decreased with the increase of temperature; with the increasing amount of APAM, molecular interactions was strengthened and it was easier to form chain entanglement between molecules, resulting in the enhancement of solution has been reduced markedly with the increase of calcium ion concentration. Some stabilizers were added in the APAM solutions, and the dependence of viscosity on time was studied, it showed that： the stability of glycerol is best. This research in the field of sludge treatment has been of great practicability and economic benefits.

关 键 词：阴离子型聚丙烯酰胺 粘度依时性 稳定剂 絮凝效果 

分 类 号：X7[环境科学与工程—环境工程]