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日用化学工业 ›› 2014, Vol. 44 ›› Issue (6): 306-311.doi: 10.13218/j.cnki.csdc.2014.06.068

• 基础研究 • 上一篇    下一篇

脂肪醇聚氧乙烯醚硫酸钠黏弹性胶束及其流变与破胶性能

李楷1, 刘会强1, 李建山1, 陆红军1, 顾雪凡2, 燕永利2   

  1. 1.中国石油股份有限公司 长庆油田分公司 超低渗透油藏研究中心,陕西 西安 710018;
    2.西安石油大学 化学化工学院,陕西 西安 710065
  • 收稿日期:2014-02-09 出版日期:2014-06-22 发布日期:2019-04-10
  • 通讯作者: 燕永利,博士,教授,E-mail:yylhill@163.com。
  • 作者简介:李 楷(1983-),男,甘肃环县人,工程师,E-mail:likai6_cq@petrochina.com.cn。
  • 基金资助:
    陕西省自然科学研究计划资助项目(2014JM2048);陕西省教育厅自然科学研究计划资助项目(2013JK0675,2013JK0649)

Studies on the rheological and breaking behaviors of viscoelastic micelles of fatty alcohol polyoxyethylene ether sulfate

LI Kai1, LIU Hui-qiang1, LI Jian-shan1, LU Hong-jun1, GU Xue-fan2, YAN Yong-li2   

  1. 1.Research Center of Ultra-low Permeability Reservoir,Changqing Oilfield Co.Ltd,CNPC,Xi'an,Shaanxi 710018,China;
    2.College of Chemistry and Chemical Engineering,Xi'an Shiyou University,Xi'an,Shaanxi 710065,China
  • Received:2014-02-09 Online:2014-06-22 Published:2019-04-10

摘要: 采用阴离子表面活性剂脂肪醇聚氧乙烯醚硫酸钠(AES)与NaCl制备黏弹性胶束。采用流变仪、黏度计和冷冻断裂蚀刻透射电子显微镜(FF-TEM),研究了在不同浓度条件下AES与NaCl溶液形成胶束体系的微观结构、流变性能、破胶机理以及重复利用性能。通过对溶液剪切黏度、剪切应力、动态模量、复合黏度等物理量的测量,结合体系宏观挑挂照片和微观FF-TEM分析,发现该体系在较宽的频率范围内呈现蠕虫状网状结构和优良的流变性能。NaCl对蠕虫状胶束的形成有很大影响,在一定的范围内随着NaCl浓度的增大,体系黏度显著增大;通过内相破胶剂实现了体系破胶可控性的目的,破胶后体系表现出分散均一的颗粒状,该体系具有重复利用的可行性。

关键词: 阴离子表面活性剂, 蠕虫状胶束, 流变性, 破胶

Abstract: Microstructure,rheological performance,breaking mechanism and recycling performance of the viscoelastic micelles prepared from anionic surfactant fatty alcohol polyoxyethylene ether sulfate (AES) and sodium chloride (NaCl) were investigated using the rheometer,viscometer and freeze fracture transmission electron microscopy (FF-TEM).Via measurement of physical quantities of the surfactant solution,such as shearing viscosity,shearing stress,dynamic modules,composited viscosity et al,in combination with analysis of observations from macroscopic photos and microscopic FF-TEM images,it were discovered that the micelle system shows overlapping network structure displaying good viscoelasticity.NaCl has a great impact on the formation of wormlike micelles.With the increase of NaCl concentration within a certain range,the viscosity significantly increases.The broken micelle system exhibits well-distributed droplets and could be utilized for micelle breaking through adding internal phase breaker.Reuse of the system is feasible.

Key words: anionic surfactant, wormlike micelle, rheology, breaking

中图分类号: 

  • TQ423.11