聚丙烯酰胺水解度对其性能影响研究  

Influence of the degree of hydrolysis of polyacrylamide its properties

作　　者：康敬程 刘卫东[1] 丛苏男[1] 管保山[1] 石宇 韩方 KANG Jing-cheng;LIU Wei-dong;CONG Su-nan;GUAN Bao-shan;SHI Yu;HAN Fang(PetroChina Research Institute of Petroleum Exploration and Development,Beijing 100038,China;College of Engineering Science,University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国石油勘探开发研究院,北京100038 [2]中国科学院大学工程科学学院,北京100049

出　　处：《应用化工》2021年第S02期139-143,170,共6页Applied Chemical Industry

基　　金：中石油勘探生产分公司课题(SL11906)。

摘　　要：通过改变水解条件得到不同水解度的聚丙烯酰胺溶液。建立了聚丙烯酰胺水解度调控方法,明确了水解度以及相应的粘度变化规律。研究表明,增加碱、增加水解时间、提高水解温度均能在一定范围内提高聚丙烯酰胺溶液水解度。提高碱度,会导致聚丙烯酰胺溶液水解度增加,粘度大幅降低。通过透析除碱的操作单独提高水解度,溶液粘度与自然水解样本基本一致。最后采用光学显微镜、扫描电镜和透射电镜对不同水解度聚丙烯酰胺溶液微观分子形态进行观测,从微观角度验证了实验测量数据的变化规律。By changing the hydrolysis conditions,polyacrylamide solutions with different degrees of hydrolysis are obtained.,established the control and test method of polyacrylamide hydrolysis degree.and the changes in viscosity and microscopic molecular morphology caused by changes in the degree of hydrolysis are studied.Research shows that increasing alkalinity,increasing hydrolysis time,and increasing hydrolysis temperature can all increase the degree of hydrolysis of polyacrylamide solution within a certain range.Finally,optical microscope,scanning electron microscope and transmission electron microscope were used to observe the microscopic molecular morphology of polyacrylamide solutions with different degrees of hydrolysis,which verified the change law of experimental measurement data from a microscopic point of view.

关 键 词：聚丙烯酰胺 水解度 粘度 分子形态 

分 类 号：TQ326.44[化学工程—合成树脂塑料工业]