论文部分内容阅读
采用近红外稳定性分析仪研究了水包沥青质模拟油型乳状液的稳定性。考察了两种表面活性剂十二烷基硫酸钠(SDS)和十二烷基苯磺酸钠(SDBS)、沥青质质量浓度以及盐对乳状液稳定性的影响,探讨了油水界面张力及油珠表面的Zeta电位与乳状液稳定性的关系。结果表明,SDBS稳定的乳状液要比SDS稳定;在所考察的条件范围内,沥青质质量浓度越高,乳状液越不稳定,盐能增强乳状液的稳定性。油水界面张力的降低有利于水包油乳状液的稳定,而Zeta电位不是影响乳状液稳定性的主要因素。
Near-infrared stability analyzer was used to study the stability of water-in-oil asphaltene simulated oil emulsion. The effects of two surfactants, sodium dodecyl sulfate (SDS) and sodium dodecyl benzene sulfonate (SDBS), asphaltene mass concentration and salt on the stability of emulsions were investigated. The interfacial tension between oil and water and oil Relationship between Zeta Potential and Stability of Emulsion on Bead Surface. The results showed that the SDBS stabilized emulsion was more stable than SDS. The higher the concentration of asphaltene, the less stable the emulsion in the range of the investigated conditions, and the salt enhanced the emulsion stability. The decrease of oil-water interfacial tension is beneficial to the stability of oil-in-water emulsion, while Zeta potential is not the main factor affecting the stability of emulsion.