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对TnSm型双子表面活性剂的分子设计和热力学洞察力,用于先进的界面应用

Ali Yarahmadi¹, Ghasem Zargar², Siavash Ashoori¹

¹Department of Petroleum Engineering, Ahwaz Faculty of Petroleum Engineering, Petroleum University of Technology, Ahwaz, Iran.

Scientific reports

|October 23, 2025

概括

新型阴离子双子表面活性剂被合成用于增强石油回收 (EOR). 研究了它们的结构-性质关系,显示了有利的吸附和减少界面张力,以有效地提取石油.

科学领域:

材料科学材料科学材料科学
物理化学物理化学
化学工程是化学工程的重要组成部分.

背景情况:

化学增强石油回收 (EOR) 对于最大限度地从水库中提取碳化合物至关重要.
表面活性剂是EOR中的关键添加剂,可降低油和水之间的界面张力.
设计有效的表面活性剂需要了解水库条件下的结构性质关系.

研究的目的:

为潜在的EOR应用设计和合成新的阴离子双子表面活性剂.
研究分子结构 (基链长度和间隔器长度) 对表面活性剂特性的影响.
为了评估这些表面活性剂的性能,从表面张力降低和聚合行为来看.

主要方法:

合成了9种新型的化双子表面活性剂,具有不同的链长度 (C12,C14,C16) 和间隔长度 (2,3,4个碳).
使用FTIR,1H-NMR,TGA和DLS进行表征,以确认结构,热稳定性和形态.
测量表面张力,导电性和界面张力,以确定临界微粒度 (CMC) 和吸附行为.

主要成果:

合成得到确认,并通过TGA评估了热稳定性.
随着基链的长度而减少,随着间隔的长度而增加,表明可调节的疏水/疏水平衡.
吸附非常有利,导致显著的界面张力降低,这对EOR至关重要.
根据表面活性剂的结构和度,DLS证实了可调节的菌形成.

结论:

合成的化双子表面活性剂对化学EOR有很大的前景.
分子设计允许量身定制表面活性剂的特性,如CMC和聚合.
有利的吸附和显著的界面张力降低证明了它们在苛刻条件下有效回收油的潜力.

关键词:

微粒的临界度 (CMC)双子座表面活性剂双子座表面活性剂微化热力学微化热力学表面张力是表面的张力.热稳定性热稳定性

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