引用本文:
朱森, 程发, 郑宝江, 于九皋. Gemini阴离子表面活性剂水溶液的界面活性[J]. 应用化学,
2005, 22(7): 792-795.
Citation: ZHU Sen, Cheng Fa, ZHENG Bao-Jiang, YU Jiu-Gao. Interface Activity of the Aqueous Solutions of Anionic Gemini Surfactants[J]. Chinese Journal of Applied Chemistry, 2005, 22(7): 792-795.
Citation: ZHU Sen, Cheng Fa, ZHENG Bao-Jiang, YU Jiu-Gao. Interface Activity of the Aqueous Solutions of Anionic Gemini Surfactants[J]. Chinese Journal of Applied Chemistry, 2005, 22(7): 792-795.
Gemini阴离子表面活性剂水溶液的界面活性
摘要:
研究了Gemini阴离子表面活性剂的表面活性。结果表明,其表面活性远远高于相应的单基表面活性剂,其临界胶束浓度(CMC)比相应的单基表面活性剂降低了1个数量级,且随着联接基团长度的增加,CMC呈减小的趋势;测定了Gemini阴离子表面活性剂的表面张力,其C20比常用的单基表面活性剂降低了2个数量级,显示出突出的降低水表面张力的效率;油水界面张力的测定结果表明,在Gemini D质量分数为0.1%时,就可以使得油水界面张力达到超低,具有突出的降低油水界面张力的能力。
-
关键词:
- Gemini阴离子表面活性剂
- / 表面张力
- / CMC
- / C20
- / 界面张力
English
Interface Activity of the Aqueous Solutions of Anionic Gemini Surfactants
Abstract:
Anionic Gemini surfactant system were investigated in this paper.The results reveal that the critical micella concentration (CMC) of Gemini surfactant has a much lower value compared with that of conventional monomeric one and CMC is decreased upon increasing spacer length.Surface tensions of Gemini surfactants were studied by means of the drop volume method.The surface tension of Gemini surfactant with c20 is two orders of magnitude lower than that of monomeric surfactant,indicating that Gemini surfactant is more efficient in declining the surface tension of water.The interfacial tensions of crude oil and water systems were measured by virtue of the pendant drop method.The surface tension of the crude oil and water system is ultra-low when the system contains 0.1% Gemini D which indicates that Gemini surfactants show a great effect on declining the interfacial tensions between oil and water.
-
Key words:
- anionic Gemini surfactant
- / surface tension
- / CMC
- / c20
- / interfacial tension
-
-
扫一扫看文章
计量
- PDF下载量: 1
- 文章访问数: 390
- HTML全文浏览量: 53
下载:
