低分子量聚丙烯酰胺溶液流变性研究  

Rheological Properties of Polyacrylamide Solution with Low Molecular Weight

作　　者：曹金丽[1] 张彦昌[1] 殷园园[1] 李天仚[1] 赵献增[1] 

机构地区：[1]河南省精细化工重点实验室,郑州450002

出　　处：《河南科学》2015年第7期1110-1113,共4页Henan Science

基　　金：河南省基础与前沿技术研究项目(122300410050);河南省基础与前沿技术研究项目(132300410075)

摘　　要：采用椎板流变仪,研究质量浓度、温度、剪切速率对分子质量为8万的低分子量聚丙烯酰胺溶液的流变性能的影响.结果表明,ω(PAM)≤15%的低分子量聚丙烯酰胺溶液呈现出牛顿流体的性质,ω(PAM)=25%的低分子量聚丙烯酰胺溶液为假塑性流体,ω(PAM)=35%的低分子量聚丙烯酰胺溶液接近于塑性流体.The effect of mass concentration,shearing rate and temperature on rheological properties of polyacrylamidesolutions with low molecular weight were studied by using cone and plate rheometer. The results showed polyacrylamidesolution with 8.0×104molecular weight exhibited Newton fluid characteristics at 5% and 15% mass concentration.Polyacrylamide solution of 25% mass concentration possessed pseudoplastic fluid characteristics. Polyacrylamidesolution of 35% mass concentration exhibited plastic fluid characteristics.

关 键 词：低分子量聚丙烯酰胺 流变性 剪切速率 表观黏度 

分 类 号：O632.6[理学—高分子化学] TQ316.65[理学—化学]