| 稀释法求微乳液体系的结构参数 |
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| 引用本文： | 沈兴海 王文清. 稀释法求微乳液体系的结构参数[J]. 北京大学学报(自然科学版), 1994, 30(2): 147-154 |
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| 作者姓名： | 沈兴海 王文清 |
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| 作者单位： | Department of Technical Physics，Peking University |
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| 摘 要： | 本文用简便、准确的稀稀法求得了ＳＤＳ－醇－正庚烷－水组成的Ｗ／Ｏ型微乳液的结构参数：水内核半径Ｒｗ、颗粒有效半径Ｒｅ、界面层厚度１、平均聚集数ｎ、颗粒总数Ｎｄ以及分散相所占总界面积Ａｄ。还求出不同水量和不同醇时，醇从连续相转移到界面层的自由能变化△ｃ→ｉ＾０。发现△Ｇｃ→ｉ＾０。发现△ｃ→ｉ＾０、颗粒半径Ｒｗ与醇的碳子数ｎ具有线性关系。同时发现Ｒｗ与含水量ＶＨ２Ｏ近似呈线性关系。
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| 关 键 词： | 微乳液 稀释法 结构参数 SDS 醇 |
Calculating the Structural Parameters of Microemulsion Systems by Dilution Method |
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| SHEN Xinghai,WANG Wenqing,GAO Hongcheng. Calculating the Structural Parameters of Microemulsion Systems by Dilution Method[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 1994, 30(2): 147-154 |
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| Authors: | SHEN Xinghai WANG Wenqing GAO Hongcheng |
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| Abstract: | The structural parameters of the SDS(sodium dodecyl sulfate)-alcohol-heptane-water system,i.e.,the radius of inner water droplet R_w,the effective radius ofparticle R_e,the length of interface l,the average aggregation number of surfactant n,the total number of particles N_d and the total interfacial area of dispersed phase A_d,were obtained by means of dilntion method and theoretical calcnlation. The change ofstandard free energy for alcohol to transfer from the continuous pkase to tbeinterfacial niembranes was also calculated.It was found that the linear relationshipsexist between or R_w and the carbon atom number of alcohol n,and between R_wand the water content V_(H20). |
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| Keywords: | Microemulsion Dilution method Structural parameter |
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