Acta Chimica Sinica ›› 2005, Vol. 63 ›› Issue (21): 1944-1950. Previous Articles     Next Articles

Original Articles

胶质液体泡沫的微观结构研究

燕永利*,1,张宁生2,屈撑囤3,刘立d,李便琴3   

  1. (1西安交通大学能源与动力工程学院 西安 710049)
    (2西安石油大学石油工程学院 西安 710065)
    (3西安石油大学化学化工学院 西安 710065)
    (4长庆石油勘探局工程技术研究院 西安 710021)
  • 收稿日期:2005-03-09 修回日期:2005-07-21 出版日期:2005-11-14 发布日期:2010-12-10
  • 通讯作者: 燕永利

Investigation of Microstructure of Colloidal Liquid Aphrons

YAN Yong-Li*,1,ZHANG Ning-Sheng2,QU Cheng-Tun3,LIU Li4,LI Bian-Qin3   

  1. (1 School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049)(1西安交通大学能源与动力工程学院 西安 710049)
    (2西安石油大学石油工程学院 西安 710065)
    (3西安石油大学化学化工学院 西安 710065)
    (4长庆石油勘探局工程技术研究院 西安 710021)
    (2 College of Petroleum Engineering, Xi'an Shiyou University, Xi'an 710065)(1西安交通大学能源与动力工程学院 西安 710049)
    (2西安石油大学石油工程学院 西安 710065)
    (3西安石油大学化学化工学院 西安 710065)
    (4长庆石油勘探局工程技术研究院 西安 710021)
    (3 College of Chemistry & Chemical Engineering, Xi'an Shiyou University, Xi'an 710065)(1西安交通大学能源与动力工程学院 西安 710049)
    (2西安石油大学石油工程学院 西安 710065)
  • Received:2005-03-09 Revised:2005-07-21 Online:2005-11-14 Published:2010-12-10
  • Contact: YAN Yong-Li

The microstructure of colloidal liquid aphrons (CLA) composed of polyoxyethylene 3 dodecyl ether/n-decane/sodium dodecyl sulphate or Tween 80/water was investigated by using a variety of experimental techniques, i.e. freeze fracture transmission electron microscopy, small angle X-ray scattering, differential scanning calorimetry and polarizing microscopy. The combined results indicated that the CLA consisted of spherical, micron-sized oil droplets (oil-rich phase) separated by an aqueous soapy shell (water-rich phase). There were supramolecular structures such as reversed micelles and micelles or O/W microemulsions observed in oil-rich and water-rich phases, respectively. By comparing the structure and properties of CLA with those of high internal phase ratio emulsions (HIPRE), it was found that CLA and HIPRE displayed similar characteristics with respect to overall structure, with biphasic structure and presence of the supramolecular structures in these phases. This conclusion seems to support Princen’s opinion on the nature and structure of CLA.

Key words: colloidal liquid aphron, microstructure, freeze fracture transmission electron microscopy, differential scanning calorimetry