【摘要】 通过电导率法测定临界胶束浓度(CMC),研究了MD膜驱剂的浓度、温度及不同无机盐对MD膜驱剂与十二烷基三甲基溴化铵(DTAB)混合体系CMC的影响。研究表明:MD膜驱剂与DTAB混合后,可降低DTAB的CMC,并且CMC随着MD膜驱剂浓度的增加而减小。温度从25℃升高到50℃时,4 mmol/L MD膜驱剂/DTAB混合体系的CMC增大。无机盐的加入有利于混合体系CMC的降低,相同价态的阴离子对CMC的影响相近,高价阴离子降低CMC的效果好于低价阴离子。更多还原

【Abstract】 Critical micelle concentrations(CMC) of the mixed systems of molecular deposition filming flooding agent(MDFFA) and dodecyltrimethylammonium bromide(DTAB) were determined by conductivity method.Effect of concentration,temperature and inorganic salts were investigated.The results show that MDFFA can decrease the CMC of DTAB,and the CMC decreases with the increase of MDFFA concentration.With the increase of temperature from 25 ℃ to 45 ℃,the CMC of 4 mmol/L MDFFA/DTAB mixed system increases.Salt can decrease the CMC of the mixed system.The influence of anionic ions with same chemical valence on the CMC of the mixed system is similar,and high valent anionic ions are more effective than low valent anionic ions in decreasing the CMC of the mixed system.更多还原