文献类型：期刊文献

中文题名：表面活性剂起泡及润湿性能的影响研究

英文题名：Research on the influence of surfactant on foaming and wetting performance

作者：龚佳怡[1,2];乔建江[1,2]

机构：[1]华东理工大学资源与环境工程学院,上海200237;[2]华东理工大学安全工程咨询中心,上海200237

年份：2021

卷号：51

期号：11

起止页码：1073

中文期刊名：日用化学工业

外文期刊名：China Surfactant Detergent & Cosmetics

收录：CSTPCD;;北大核心:【北大核心2020】；

语种：中文

中文关键词：表面活性剂;起泡;润湿

外文关键词：surfactant;foaming;wetting

摘要：通过单因素法,配制不同体系的表面活性剂溶液,研究亲水亲油平衡值(HLB值)、表面张力、黏度、复配组分对溶液起泡、泡沫携液和润湿性能的影响。实验结果表明:在吐温85、吐温40、烷基糖苷(APG)构成的表面活性剂体系中,溶液HLB值对起泡和润湿能力无明显影响。在十二烷基硫酸钠(SDS)和APG构成的表面活性剂体系中,表面张力的降低有利于溶液起泡和润湿;当质量分数大于临界胶束浓度(cmc)时,随着质量分数增加,溶液起泡能力先增加后平稳,泡沫稳定性降低,润湿性能提升。在SDS、APG、黄原胶构成的复配体系中,溶液黏度的增加有利于泡沫稳定和携液,但降低了起泡和润湿性能。表面活性剂复配的协同作用与组分及配比质量分数有关,月桂醇聚醚硫酸酯钠(SLES)与十二烷基二甲基甜菜碱(BS)复配组分有明显增效作用,在质量分数比为5∶5的条件下综合性能最佳。
This paper is intended to explore the influence of the surfactant solution physical parameters and compound components on the foaming and wetting performance by preparing surfactant solutions of different systems.Physical parameters includes the HLB value of surfactant,solution surface tension,and its viscosity.The HLB value of the solution was measured by water counting,and its surface tension and viscosity were measured by the surface tension instrument and rotational viscometer,respectively.Foaming ability of the solution was determined by the shaking method and Warning-Blender method,while foam stability was determined by the foam volume attenuation method.The wetting time was determined by the immersion method.The nonionic-nonionic surfactant system solution was formulated from Tween 85,Tween 40,alkyl glycoside(APG)to change the HLB value of the solution.Results show that the HLB value has no obvious effect on the foaming and wetting performance.Within the test range,when the APG concentration is the same,the solution has similar foaming and wetting performance,indicating that the foaming and wetting performance of the solution mainly depends on the effect of APG concentration.The anionic-nonionic surfactant system solution is formulated from sodium dodecyl sulfate(SDS)and APG to change the surface tension of the solution.Results show that the decrease of surface tension is conducive to the improvement of foaming and wetting performance.When the concentration is greater than the critical micelle concentration(0.0116%),the surface tension is almost constant.With the increase of concentration,foaming ability of the solution increases first and then stabilizes,the foam stability decreases and the wetting performance improves.In the compound solution of SDS,APG and xanthan gum,the concentration of xanthan gum is different to change the viscosity of the solution.Results show that the increase of solution viscosity is beneficial to the improvement of foam stability,and the foam can carry more solutions in the initial stage of formation.The foaming ability of the solution is slightly reduced,and the wetting performance decreases.The synergistic effect of surfactant compounding is related to the composition and ratio concentration.The combination of sodium lauryl polyoxyethylene ether sulfate(SLES)and dodecyl dimethyl betaine(BS)has a synergistic effect,and the comprehensive performance is the best when the concentration ratio is 5∶5.