摘要
为了明确阴离子型表面活性剂十二烷基苯磺酸钠(SDBS)、阳离子型表面活性剂十六烷基三甲基溴化铵(CTAB)、中性表面活性剂聚氧乙烯-聚氧丙烯-聚氧乙烯(P123)对气体水合物反应液表面张力影响规律,利用德国KRUSS公司生产的界面张力仪K11测定了其表面张力,考察了浓度、温度对水合反应液表面张力的影响,分析了影响机理。实验结果表明:3种表面活性剂均能降低气体水合物反应液表面张力,CTAB、P123、SDBS的CMC分别为300、500、700mg/kg。测试数据表明,CTAB(300mg/kg)降低水合反应液表面张力效果最优,表面张力的降幅最高达79%。实验结果为表面活性剂优选提供了科学依据。
In order to get the law of surfactants effects on surface tension of gas hydrate reaction liquid, surface tension of SDBS, CTAB and P123, they were measured in the way of plate method through the tensionmeter Kll which was produced by the KRUSS company in Germany. Effects of concentration and temperature on the surface tension of solution were investigated. The results showed that each surfactant could reduce the surface tension of gas hydrate. CTAB＇s CMC value was 300mg/kg. P123＇s CMC value was 500mg/kg. SDBS＇s CMC value was 700mg/kg. The best surfactant was CTAB （300mg/kg） with an average surface tension reduction of 79 %. This investigation was the basis of surfactants selection in gas hydrate formation.
出处
《常州大学学报（自然科学版）》
CAS
2013年第2期56-60,共5页
Journal of Changzhou University：Natural Science Edition
基金
国家自然科学基金(51176015)
中国石油科技创新基金项目(2011D50060606)
扬中科技局资助项目(YE2012015)
