摘要
考察了非离子型表面活性剂烷基糖苷(APG)和两性表面活性剂十二烷基甜菜碱(BS-12)之间的复配性能,测定了不同摩尔比的APG和BS-12复配体系的表面张力、泡沫和乳化性能,并且研究了无机盐对复配体系表面活性的影响。结果表明,与单独任一表面活性剂体系相比,APG和BS-12复配体系具有较好的表面活性,呈现明显的协同增效作用;在摩尔比为3∶7时,复配体系的表面活性最高、起泡性能最好、形成的泡沫和乳状液最稳定,协同增效作用最显著。此外,无机盐的加入提高了复配体系的表面活性,当NaCl浓度为0.03mol/L时,表面张力和临界胶束浓度最小,表面活性最高;而对于无机盐,其离子价态越高,提高表面活性程度越明显;相比之下,阳离子提高复配体系表面活性的能力大于阴离子。
The composition property of nonionic surfactant Alkyl Glycoside （APG） and zwitterionic surfactant Dodecyl Betaine （BS-12） in different molar ratio of APG and BS-12 were studied by investigating the surface tension, foam and emulsifying property.＇ In addition, the effect of inorganic salt on the mixed system was studied, too. The results showed that the composite of APG and BS-12 displays obvious synergies effect and higher surface activity compared with any kind of surfactant system alone. The highest surface activity, best foam and emulsifying property was reached while the mole ratio of APG to BS-12 was 3：7 in the mixed system. In addition, it had been found that the performance of the mixed system would be improved by adding the inorganic salt into system and the action was more obvious by introducing higher valence cation. As adding of NaCl the surface activity of the system was enhanced obviously, and surface tension and critical micelle concentration of the system were reduced to the minimum at the NaCl concentration of 0.03mol/L.
出处
《化学通报》
CAS
CSCD
北大核心
2014年第1期77-81,共5页
Chemistry
基金
滨州学院青年人才创新基金项目(BZXYQNLG201203)资助
关键词
烷基糖苷
十二烷基甜菜碱
表面张力
泡沫性能
乳化性能
Alkyl glycoside, Dodeeyl betaine, Surface tension, Foam property, Emulsifying property
