| 双子表面活性剂Dynol-604溶液的动态表面张力研究 |
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| 引用本文： | 李干佐,陈文君,顾强,李英,葛尚正.双子表面活性剂Dynol-604溶液的动态表面张力研究[J].高等学校化学学报,2002,23(11):2117-2120. |
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| 作者姓名： | 李干佐 陈文君 顾强 李英 葛尚正 |
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| 作者单位： | 1. 山东大学胶体与界面化学教育部重点实验室, 济南250100;
2. 菏泽教育学院生化系, 菏泽274000 |
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| 基金项目： | 国家自然科学基金 (批准号 :2 990 30 0 6 ,2 99730 2 3)，西南石油学院国家油气地质和开发重点实验室资助 |
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| 摘 要： | 通过测定双子表面活性剂Dynol-604的动态表面张力(DST),研究了温度和浓度等对其DST的影响,详细表征了DST随时间的变化过程,计算了动态表面张力的各种参数(ti,t*,tm,R1/2).结果表明,其表面张力降低迅速,γm值也很低.探讨了上述参数的物理意义和变化规律.
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| 关 键 词： | Dynol-604 动态表面张力 温度 浓度 |
| 文章编号： | 0251-0790(2002)11-2117-04 |
| 收稿时间： | 2001-08-16 |
Studies on the Dynamic Surface Tension of Dynol-604 |
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| LI Gan-Zuo ,CHEN Wen-Jun ,GU Qiang ,LI Ying ,GE Shang-Zheng.Studies on the Dynamic Surface Tension of Dynol-604[J].Chemical Research In Chinese Universities,2002,23(11):2117-2120. |
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| Authors: | LI Gan-Zuo CHEN Wen-Jun GU Qiang LI Ying GE Shang-Zheng |
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| Institution: | 1. Key Lab for Colloid and Interface Chemistry of State Education Ministry, Shandong University, Jinan 250100, China;
2. Department of Biology and Chemistry, Heze Educational College, Heze 274000, China |
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| Abstract: | The dynamic surface tension(DST) of Dynol-604 was measured by using the maximum bubble pressure method. At first the curves of DST with lgt were obtained, then the parameters(ti, t*, tm, γm) were obtained from the curves above and R1/2 can be calculated out. The effects of the concentration of Dynol-604 and temperature on the dynamic surface tension of Dynol-604 have been investigated. The results showed that the dynamic surface activity and adsorption energy of Dynol-604 increased with the increase of temperature and their concentration, and the diffusion energy decreased with the increasing of temperature and Dynol-604 concentration. In a word, the transient and equilibrium surface activities of Dynol-604 are very high. |
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| Keywords: | Dynol-604 Dynamic surface tension Temperature Concentration |
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