摘要
研究了双癸基二甲基甲酸铵(DDAF)、双癸基二甲基乙酸铵(DDAA)、双癸基二甲基丙酸铵(DDAP)、双癸基二甲基丁酸铵(DDAE)、双癸基二甲基氯化铵(DDAC)、双癸基二甲基硝酸铵(DDAN)6种不同反离子季铵盐对季铵盐表面活性剂性能的影响,测定了它们的表面活性及其应用性能。研究表明,DDAF、DDAA、DDAP和DDAE的临界胶束浓度(CMC)值和临界表面张力(γCMC)值均比传统表面活性剂DDAC的数值大,DDAN具有比传统DDAC更高的表面活性;DDAF、DDAA、DDAP、DDAE的乳化、润湿能力良好,具有低泡的特点,而DDAN有着比传统DDAC更优异的发泡力、乳化力和润湿力;DDAF、DDAA、DDAP、DDAE和DDAN对金黄色葡萄球菌和大肠杆菌的抑菌能力均比DDAC的抑菌能力更强。
Various quaternary ammonium salts with formate（ DDAF）,acetate（ DDAA）,propionate（ DDAP）,ethacetate（ DDAE）,chloridion（ DDAC） and nitrate（ DDAN） being counter ions were researched. The surface activities and potential application were measured. It is noted that DDAF,DDAA,DDAP and DDAE have the higher value of the critical micelle concentration and the minimum surface tension than traditional surfactant DDAC,and DDAN shows higher surface activities than DDAC. DDAF,DDAA,DDAP and DDAE show excellent emulsifying performance and wetting power ability,while its foaming power is low. In addition,DDAN has higher foaming power,emulsifying performance and wetting power than DDAC. Moreover,the bacteriostatic tests show that DDAF,DDAA,DDAP,DDAE and DDAN have greater efficacy than DDAC against E. coli and S. aureus.
出处
《精细化工》
EI
CAS
CSCD
北大核心
2015年第10期1106-1111,共6页
Fine Chemicals
基金
"十二五"国家科技支撑计划资助项目(2014BAE03B00)
山西省科技计划项目(20130321019-02)~~
关键词
双癸基季铵盐
反离子
表面活性
应用性能
didecyl quaternary ammonium salts
counterions
surface activity
application performance
