轻工学报2016，Vol.31Issue(5)：51-57,7.DOI:10.3969/j.issn.2096-1553.2016.5.009
十二烷基硫酸钠与非离子表面活性剂 AEO9／6501复配体系表面活性及动态表面张力研究
Study on surface active and dynamic surface tension of K12 and AEO9/6501 complex systems
摘要
Abstract
The critical micelle concentration(cmc),equilibrium surface tension(γ)and dynamic surface ten-sion (DST)of K12-AEO9 and K12-6501 formulations were investigated.The best synergistic effect and minimal cmc could be observed that is cmc was 0.1 4 mmol·L-1 and 0.30 mmol·L-1 when the mass ratio was 11 for K12-AEO9 and 37 for K12-6501 .When the mass ration of K12 and AEO9 was 11 ,the balance time(t*) was minium(1 .42 s),the surface tension reducing rate(R1/2)reached maximum (14.47 mN·m-1 ·s-1 ) and the binary system showed the best dynamic surface activity.As for K12-6501 ,the best results were observed when the mass ratio was 37.The maximum R1/2 (1 4.25 mN·m-1 ·s-1 )was obtained and the system was more easy to reach the equilibrium system of medium.The obtained experimental data showed that the two kinds of mixture adsorption equilibrium time on the water surface decreased and tension reducing rate of R1/2 increased with the increasing of the surfactant concentration.关键词
十二烷基硫酸钠/脂肪醇聚氧乙烯醚9/椰子油脂肪酸二乙醇酰胺/协同效应/动态表面张力Key words
sodium dodecyl sulfate (K1 2 )/primary alcobol ethoxylate (AEO9 )/coconutt diethanol amide (6501 )/synergistic effects/dynamic surface tension分类
化学化工引用本文复制引用
李刚森,蔡立芳,王培义,陈帅,王瑞娟..十二烷基硫酸钠与非离子表面活性剂 AEO9／6501复配体系表面活性及动态表面张力研究[J].轻工学报,2016,31(5):51-57,7.基金项目
河南省高等学校重点科研项目 （）
