【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。更多还原

【Abstract】 Novel 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.更多还原