含表面活性剂SDS和DTAB复配溶液的表面张力的测定及其机理研究  

Determination of surface tension of compound solutioncontaining surfactant SDS and DTAB and its mechanism

作　　者：焦陈斯帆 苏超凡 王炜[2] Hiromichi Takebe Kusuhiro Mukai 余仲达 JIAO Chen-si-fan;SU Chao-fan;WANG Wei;HIROMICHI Takebe;KUSUHIRO Mukai;YU Zhong-da(State Key Lab of Metallurgy and Preparation of High Quality Special Steel,Department of Material Science and Engineering,Shanghai University,Shanghai 200072,China;Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education,Wuhan University of Science and Technology,Wuhan 430081,China;Ehime University,Matsuyama 790-0826,Japan;Kyushu Institute of Technology,Kyushu 804-8550,Japan)

机构地区：[1]上海大学材料科学与工程学院省部共建高品质特殊钢冶金与制备国家重点实验室,上海200072 [2]武汉科技大学湖北省冶金二次资源工程技术研究中心,湖北武汉430081 [3]爱媛大学,日本松山790-0826 [4]九州工业大学,日本九州804-8550

出　　处：《应用化工》2023年第11期2991-2997,共7页Applied Chemical Industry

基　　金：国家自然科学基金项目(51974212);国家自然科学基金委员会-中国宝钢钢铁集团有限公司钢铁联合研究基金项目(U1760101)。

摘　　要：通过真球气泡法测定了相同总浓度下、不同复配比的阴离子型表面活性剂十二烷基硫酸钠(SDS)表面张力,探究加入阳离子型表面活性剂十二烷基三甲基溴化铵(DTAB)后复配体系的相互作用。结果表明,无论何种复配体系,在任意总浓度下,其表面张力的最低值都处于相同的复配比例,故认为有一个简易得到复配体系最低表面张力的方法,即在总浓度一定时,找到表面张力值最低时的复配比例,并在此比例下求得cmc值;复配体系泡沫性能优劣的排序与其表面活性大小的排序一致,故泡沫最佳性能的获取方法与复配体系最小表面张力值获取方法一致;并通过建立模型,定义且计算了表面张力系数(K)值。The anionic surfactant sodium dodecyl sulfate(SDS)at different compound ratios at the same total concentration was determined by the real sphere bubble method to explore the interaction of the compounding system after the addition of cationic surfactant dodecyltrimethylammonium bromide(hereinafter referred to as DTAB).The result showed that no matter what kind of compound system,the lowest value of surface tension is at the same compound ratio at any total concentration,so this paper believes that there is a simple method to obtain the lowest surface tension of the composite system,that is,when the total concentration is fixed,find the compound ratio when the surface tension value is lowest,and obtain the cmc value under this ratio.It was found that the ranking of the foam performance of the composite system was consistent with the order of its surface activity size,so the method of obtaining the best foam performance was consistent with the method of obtaining the minimum surface tension value of the composite system.The surface tension coefficient K value is defined and calculated by establishing a model.

关 键 词：真球气泡法 表面张力 表面活性剂复配体系 

分 类 号：TQ423.11[化学工程]