新型季铵盐Gemini表面活性剂润湿性能测定与润湿模型建立  

Wettability Determination and Wetting Model of a New Quaternary Ammonium Salt Gemini Surfactant

作　　者：孙灵辉 吴赞校[2] 姚同玉[3] 孙同秀 何伟 周琼瑜 SUN Linghui;WU Zanxiao;YAO Tongyu;SUN Tongxiu;HE Wei;ZHOU Qiongyu(Institute of Porous Flow and Fluid Mechanics,Research Institute of Petroleum Exploration and Development,Beijing 100083,P R of China;The Sixth Oil Production Plant,Daqing,Heilongjiang 163114,P R of China;College of Petroleum Engineering,China University of Petroleum (East China),Qingdao ,Shandong 266580,P R of China)

机构地区：[1]中国石油勘探开发研究院渗流流体力学研究所,北京100083 [2]大庆油田第六采油厂,黑龙江大庆163114 [3]中国石油大学(华东)石油工程学院,山东青岛266580

出　　处：《油田化学》2018年第4期709-714,共6页Oilfield Chemistry

基　　金：国家自然科学基金"化学驱过程中表面活性剂的微观润湿动力学研究"(项目编号51204200)

摘　　要：为了揭示季铵盐型Gemini表面活性剂的润湿性能及润湿动力学机制,采用悬滴法测定了817、A37、A42、G50、G51及G53共6种季铵盐型Gemini表面活性剂溶液在亲水/亲油云母表面的润湿角变化过程,比较并筛选出了具有较好润湿反转性能的表面活性剂。通过对润湿机制的分析,建立了表面活性剂溶液在云母表面的润湿模型并用实验数据进行验证。结果表明,G51、817对天然云母片表面的润湿反转效果较好,通过静电引力在云母表面物理吸附,可分别将亲水云母表面转变为强亲油与弱亲油表面;G50、G53对亲油处理后的云母片润湿反转效果较好,通过范德华力和静电引力在云母表面物理吸附,可将亲油云母表面转变为弱亲水表面。建立的润湿模型与实验数据间的相关判定系数为0.8803数0.9988,可用于表征表面活性剂溶液在云母表面的润湿过程。In order to reveal the wettability and wetting kinetics of quaternary ammonium Gemini surfactants,the wetting angle changes of six quaternary ammonium Gemini surfactants solutions such as 817,A37,A42,G50,G51 and G53 on hydrophilic/lipophilic mica surface were determined by hanging drop method. The wetting properties of different kinds of surfactants were compared and the better ones were selected. Through the analysis of wetting mechanism,the wetting model of surfactant solution on mica surface was established and verified by experimental data. The results showed that the wetting reversal ability of G51 and817 on the surface of natural mica was better than that of other ones,i.e.,the hydrophilic mica surface could be changed into strong lipophilic and weak lipophilic surface respectively because of the physical adsorption on mica surface by electrostatic attraction.While for oil treated mica,G50 and G53 were better,i.e.,the lipophilic mica surface could be changed into weak hydrophilic surface because of physical adsorption on mica surface by Van der Waals’ force and electrostatic attraction. The correlation coefficient between wetting model and experimental data was 0.8803-0.9988,which indicated that the model was suitable for the characterization of wetting process of surfactant solution on mica surface.

关 键 词：季铵盐型 GEMINI表面活性剂 吸附 润湿性能 润湿模型 

分 类 号：O647[理学—物理化学] TE357.46[理学—化学]