西南石油大学学报(自然科学版) ›› 2008, Vol. 30 ›› Issue (5): 121-125.DOI: 10.3863/j.issn.1000-2634.2008.05.028

• 油气化学工程与化工 • 上一篇    下一篇

疏水缔合聚丙烯酸与TX-10的相互作用及流变性

杨军 王航 梅拥军 周洪   

  1. 中国民航总局第二研究所,四川成都610041
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-10-20 发布日期:2008-10-20
  • 通讯作者: 周洪

ASSOCIATION POLY(ACRYLIC ACID) INTERACTING WITH TX-10 AND THE RHEOLOGY BEHAVOIR

YANG Jun WANG Hang MEI Yong-jun ZHOU Hong   

  1. The Second Research Institute of CAAC,Chengdu Sichuan 610041,China).〖WT5BX〗JOURNAL OF SOUTHWEST PETROLEUM UNIVERSITY(SCIENCE & TECHNOLOGY EDITION
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-10-20 Published:2008-10-20

摘要:

系统研究了疏水缔合聚丙烯酸共聚物(HMPA)水溶液及在非离子表面活性剂(仲辛基酚聚氧乙烯醚,TX-10)存在条件下的流变特性和缔合行为。结果表明,HMPA水溶液存在一个聚合物网

络结构完全形成的临界区域浓度C**,高于该浓度,溶液体系流变性将从粘性主导向弹性主导转变。TX-10对HMPA水溶液体系的模量和粘度影响结果表明,表面活性剂分子与聚合物侧链的

疏水基团相互作用,在低浓度下促进分子内缔合向分子间缔合转变,构建了较强的网络结构,增加体系粘度;在高浓度下导致疏水基团的解缔合,破坏聚合物网络结构。

关键词: 疏水缔合, 流变行为, 表面活性剂, 溶液性能, 聚丙烯酸

Abstract: The rheology and association behavior of Hydrophobically modified poly (acrylic acid) (HMPA) solution under the condition of the existence of nonionic surfactant(TX-10) are investigated.The results show that the rheological behavior is related to the cluster overlapping concentration and the established network concentration C**.With the concentration increasing,the liquidlike behavior of HMPA solution transits to that of gellike.It is shown that HMPA interacts with the surfactant TX-10 in the solution.Surfactant induces the factors that change the number and strength of hydrophobic functions thus the associative network strength,and plays a major role in changing the solution rheology.

Key words: association, rheology behavoir, surfactant, solution properties, poly(acrylic acid)

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