影像科学与光化学 ›› 1999, Vol. 17 ›› Issue (4): 296-302.DOI: 10.7517/j.issn.1674-0475.1999.04.296

• 研究论文 • 上一篇    下一篇

硅胶与高岭土的润湿性及荧光和驱油研究

毕只初, 徐飞, 张振述, 俞稼镛   

  1. 中国科学院感光化学研究所, 北京100101
  • 收稿日期:1998-10-28 修回日期:1999-02-05 出版日期:1999-11-20 发布日期:1999-11-20
  • 通讯作者: 毕只初
  • 基金资助:
    国家攀登计划;中国科学院光化学开放实验室基金

WETTABILITY OF SILICA GEL OR KAOLIN, FLUORESCENCE AND MIMIC OIL RECOVERY

BI Zhichu, XU Fei, ZHANG Zhenshu, YU Jiayong   

  1. Institute of Photographic Chemistry, The Chinese Academy of Sciences, Beijing 100101, P. R. China
  • Received:1998-10-28 Revised:1999-02-05 Online:1999-11-20 Published:1999-11-20

摘要: 利用Washburn方程测量固体粉末的润湿性,研究了十二烷基苯磺酸钠(SDBS)水溶液在硅胶及高岭土两种固体粉末表面上的接触角,用荧光猝灭法测定了SDBS在水溶液里的胶束平均聚集数。并由此探讨了十二烷基苯磺酸钠水溶液在固体粉末表面的润湿性,表面活性剂的临界胶束浓度(CMC)与表面含油粉末脱油率的关系。

关键词: 表面活性剂, 稳态荧光, Washburn法, 润湿性, 脱油率

Abstract: The wettability of the solid powders (silica gel or kaolin) were measured with Washburn equation expressed as contact angles. The contact angle changes for SDBS(Sodium Dodecyl Benzene Sulfonate) aqueous solutions on a silica gel or kaolin powder were studied. The average aggregation number of micelle in SDBS aqueous solution was measured with fluorescence quenching method. The relationship among the wettability of the powder, the critical micelle concentration (CMC) of SDBS and the mimic oil recovery of the resident oil on the powder was explored.

Key words: surfactant, steady-state fluorescence, Washburn method, wettability, oil recovery