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通过测定双子表面活性剂与原油的界面张力,发现双子表面活性剂在缺碱的条件下,也可以使油水界面张力降低至超低的能力,证明了其对碱的依赖性较小,优于普通表面活性剂。单独使用双子表面活性剂或者与其他表面活性剂协同使用,均可以使多种原油一水界面张力降低至超低范围。对双子表面活性剂溶液浓度等因素对油水界面张力的影响程度进行了分析。发现双子表面活性剂降低油水界面张力的能力主要与表面活性剂和油的性质密切相关。研究了其界面张力行为,发现双子表面活性剂具有比普通表面活性剂较高的界面活性,并且与盐具有很好的协同性,可以在较宽的盐度和表面活性剂浓度范围内降低油水界面张力至超低范围。
By measuring the interfacial tension between gemini surfactant and crude oil, it was found that gemini surfactant can also reduce the oil-water interfacial tension to ultra-low ability in the absence of alkali and proved to be less dependent on alkali than the gemini surfactant Ordinary surfactants. Gemini surfactants alone or in combination with other surfactants can reduce the interfacial tension of various crude oils to ultra-low ranges. The influence of gemini surfactant solution concentration and other factors on the interfacial tension of oil and water was analyzed. The ability of gemini surfactants to reduce the interfacial tension of oil and water has been found to be mainly related to the nature of surfactants and oils. The interfacial tension behavior of Gemini surfactant was studied. It was found that Gemini surfactants have higher interfacial activity than common surfactants and have good synergism with salt, which can reduce oil water in a wide range of salinity and surfactant concentration Interfacial tension to ultra-low range.