石油炼制与化工 ›› 2024, Vol. 55 ›› Issue (8): 92-98.

• 基础研究 • 上一篇    下一篇

新型阴-非离子表面活性剂合成及其与高效表面活性剂18-AC之间的相互作用研究

张超,秦冰,江建林,乔富林   

  1. 中石化石油化工科学研究院有限公司
  • 收稿日期:2023-12-14 修回日期:2024-04-29 出版日期:2024-08-12 发布日期:2024-07-29
  • 通讯作者: 乔富林 E-mail:qiaofulin.ripp@sinopec.com
  • 基金资助:
    国家重点研发计划“生物制剂复合驱油体系开发及应用示范”;国家自然科学基金青年基金“基于环糊精的寡聚阴离子表面活性剂的合成、其聚集及吸附行为及其对土壤中稠环芳烃污染 物的增溶效果研究”

SYNTHESIS OF NOVEL ANIONIC-NONIONIC SURFACTANTS AND THEIR INTERACTION WITH HIGHLY INTERFACIAL ACTIVE SURFACTANT18-AC


  • Received:2023-12-14 Revised:2024-04-29 Online:2024-08-12 Published:2024-07-29

摘要: 合成了不同碳数烷基链的新型阴-非离子表面活性剂,并通过表面张力技术研究了壬基酚聚氧乙烯醚硫酸钠(9-EOS)、十二烷基酚聚氧乙烯醚硫酸钠(12-EOS)与高效表面活性剂18-AC之间的相互作用。结果表明,9-EOS与高效表面活性剂18-AC之间存在拮抗作用,而长碳链的12-EOS与高效表面活性剂18-AC之间存在协同作用。此外,系统研究了复配体系对润湿性能、油水界面性能的影响,复配体系可以降低溶液在原油表面的接触角,具有较好的铺展效果。当12-EOS摩尔分数为0~0.6时,12-EOS与18-AC在润湿性能方面具有协同作用,接触角比单组分体系有所减小,且油水界面性能有所提升。

关键词: 表面活性剂, 分子间相互作用, 协同性

Abstract: anionic-nonionic surfactants with alkyl chains of different number of carbon atoms were synthesized, and the interaction between sodium nonylphenol polyoxyethylene ether sulfate (9-EOS), sodium dodecylphenol polyoxyethylene ether sulfate (12-EOS) and high performance surfactant (18-AC) was studied by surface tension technique. The results showed that there was an antagonistic effect between 9-EOS and 18-AC, while there was a synergistic effect between 12-EOS and 18-AC. In addition, the effects of the compound system on the wettability and oil-water interface properties of the mixtures were systematically studied. The compound system effectively reduced the contact angle on the crude oil surface. When the 12-EOS molar fraction is 0-0.6, the 12-EOS/18-AC system has a synergistic effect on the wettability, the contact angle is lower than that of individual surfactants, and the oil-water interface performance is improved.

Key words: surfactant, intermolecular interaction, synergistic