Gemini表面活性剂与月桂醇醚羧酸盐的复配性能研究
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摘要
研究了Gemini阳离子表面活性剂双十二烷基季铵盐(12-3(OH)-12)与阴离子表面活性剂月桂醇聚氧乙烯醚羧酸钠(AE9C)复配体系的稳定性、表面活性、泡沫性能、润湿性和乳化性能。结果表明,12-3(OH)-12与AE9C复配体系稳定性好,表现出很好的协调增效作用。当n(12-3(OH)-12)∶n(AE9C)=1∶2时,增效作用最为明显,其临界胶束浓度CMC为1.49 mmol/L,最低表面张力γCMC=30.15 m N/m,均低于任一单组分。复配体系的泡沫、润湿和乳化性能均要优于任一单组分,并且都在n(12-3(OH)-12)∶n(AE9C)=1∶2时表现出最佳性能。
The surface activity,compatibility,foaming property,wetting power and emulsifying property were investigated for mixed Gemini surfactant 1,3-bis( dodecyl-N,N-dimethylammonium)-2-propanol( 12-3( OH)-12) and laurinol ether carboxylate sodium( AE9C). These two surfactants show very good compatibility,and the strong synergic effect was shown by the mixture. When the molar ratio between 12-3( OH)-12 and AE9 C was 1∶ 2,the cationic and anionic head group charge were mixed in equal molar ratio,the mixed system showed the strongest synergic effect. The minimum values of critical micelle concentration( CMC) and the surface tension at CMC( γCMC) of mixed systems were 1. 49 mmol/L and 30. 15 m N/m,respectively; and the both were much lower than that of each surfactant. The foaming properties,wetting power and emulsifying property were also better than that of each component,and all these optimal results were shown while n( 12-3( OH)-12) ∶ n( AE9C) was 1∶ 2.
The surface activity,compatibility,foaming property,wetting power and emulsifying property were investigated for mixed Gemini surfactant 1,3-bis( dodecyl-N,N-dimethylammonium)-2-propanol( 12-3( OH)-12) and laurinol ether carboxylate sodium( AE9C). These two surfactants show very good compatibility,and the strong synergic effect was shown by the mixture. When the molar ratio between 12-3( OH)-12 and AE9 C was 1∶ 2,the cationic and anionic head group charge were mixed in equal molar ratio,the mixed system showed the strongest synergic effect. The minimum values of critical micelle concentration( CMC) and the surface tension at CMC( γCMC) of mixed systems were 1. 49 mmol/L and 30. 15 m N/m,respectively; and the both were much lower than that of each surfactant. The foaming properties,wetting power and emulsifying property were also better than that of each component,and all these optimal results were shown while n( 12-3( OH)-12) ∶ n( AE9C) was 1∶ 2.
引文
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[2]李学刚,宋丽,张光兆,等.阴、阳离子混合表面活性剂的表面活性[J].日用化学工业,1997,3:12-15.
[3]杜志平,王万绪.阴离子表面活性剂与阳离子表面活性剂的相互作用(Ⅰ)——表面活性[J].日用化学工业,2006,36(3):187-190.
[4]王金涛,王万绪,王丰收,等.糖苷季铵盐与α-烯基磺酸钠复配体系的表面活性[J].日用化学工业,2009,39(3):162-165.
[5]史东,谷惠先,刘晓英,等.阴/阳离子表面活性剂复配体系的物化性能——不同乙氧基化数对溶解性及表面张力的影响[J].日用化学工业,2004,34(4):229-231.
[6]赵剑曦.新一代表面活性剂:Gemini[J].化学进展,1999,11(4):348-357.
[7]MENGER F M,LITTAU C A.Geminis surfactants:synthesisand properties[J].J.Am.Chem.Soc.,1991,113:1 451-1 452.
[8]WANG Rui-tao,LI Yun-lin,LI Qiu-xiao.Synthesis and properties of dodecyldiethoxylamine oxide[J].J.Surfact.Deterg.,2013,(16):509-514.
[9]杜志平,王万绪.阴离子表面活性剂与阳离子表面活性剂的相互作用(Ⅱ)——稀溶液性质[J].日用化学工业,2006,36(4):247-250.
[10]杨光,叶仲斌,张凤英,等.表面活性剂复配体系对正构烃/水界面张力的协同作用研究[J].石油与天然气化工,2005,34(3):200-202.
[11]王金涛,王万绪,王丰收,等.糖苷基季铵盐与十二烷基硫酸钠复配性能的研究[J].化学研究与应用,2009,21(3):344-348.
[12]邹利宏,方云,吕栓锁.阴-阳离子表面活性剂复配研究与应用[J].日用化学工业,2001,5:37-40.