引用本文:刘畅,宁志刚,徐昆,李羚露,宋春雷,张文德,等. 羧甲基纤维素钠及丙烯酰胺二元共聚物的制备及性能[J]. 石油与天然气化工, 2010, 39(3): 230-233,180.
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羧甲基纤维素钠及丙烯酰胺二元共聚物的制备及性能
刘畅1, 宁志刚1, 徐昆2, 李羚露, 宋春雷, 张文德, 王丕新
1.长春工业大学;2.中国科学院长春应用化学研究所
摘要:
在水相中采用自由基聚合的方法,合成了羧甲基纤维素钠(CMCNa)与丙烯酰胺(AM)的接枝共聚物。采用FTIR对产物结构进行了表征。同时采用流变仪对接枝共聚物水溶液在不同温度及离子强度下的流变行为进行了系统研究。结果 表明,羧甲基纤维素钠与丙烯酰胺发生了接枝共聚反应;接枝共聚物具有较好的耐温、抗盐性。此外,对接枝共聚物的Fe3+、Cr3+、Zr4+等金属离子交联冻胶的流变研究表明,该接枝共聚物可形成性能优良的冻胶,这种冻胶在堵水、压裂和调剖等采油工艺中有着重要的作用。
关键词:  羧甲基纤维素钠  丙烯酰胺  接枝共聚  压裂液
DOI：
分类号:O631.3
基金项目:吉林省重点科技发展项目(20070311)
Study on Preparation and Properties of Poly(CMCNa-g-AM)
Liu Chang1, Ning Zhigang1, Xu Kun2
1.Changchun University of Technology,Changchun 130022,Shenyang,China;2.Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,Shenyang,China
Abstract:
A serious of graft copolymerization of carboxymethyl cellulose sodium(CMCNa)with acrylamide(AM)were prepared by grafting acrylamide onto carboxymethyl cellulose sodium in aqueous solution by radical polymerization.The structure of polymer was characterized by FTIR.At the same time,the rheological properties of the polymers aqueous solutions were investigated by rheometer at various temperature and ion strength.The results indicated the occurrence of grafting reaction between AM and CMCNa.And the copolymers of CMCNa-g-AM showed favorable salt-resistance and heat-resistance properties.Moreover,the rheological study on gels which crosslinked by some metal ions,such as Fe3+,Zr4+ and Cr3+ showed excellent property and were of importance in oil production technology such as profile control,fracturing fluid and water shutoff.
Key words:  carboxymethyl cellulose sodium  acrylamide  graft copolymerization  fracturing fluids