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《Applied Chemical Industry》 2006-07
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Mixed system of anionic and zwitterionic surfactants and the effects of NaCl on surface activity

ZHAO Hong-fang,YANG Ya-ling,LIU Dong-hui,HU Jiang-liang,CHAI Jun-hong(Faculty of Biologic and Chemical Engineering,Kunming University of Science and Technology,Kunming 650224,China)  
The formation of ability of micelle,the ability of reducing surface tension and foaming perfermance has been investigated for the mixed system of anionic(C_(12)) and zwitterionic(OB-2) surfactant.It is found that when the mole ratio of C_(12) to OB-2 is about 6∶4~3∶7,the surface activity shows a maximum.The influence of NaCl on surface properties of the mixed system has also been studied.The surface activity is enhanced with the increase of NaCl concentration.It is also found that the viscosity of mixed system is enhanced when the NaCl concentration is 3%~4%.
【CateGory Index】: TQ423
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