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不同反胶束体系特性研究

ISSN号：1008-9578
期刊名称：粮食与油脂
时间：2012.12.5
页码：9-12
分类：TS201.1[轻工技术与工程—食品科学;轻工技术与工程—食品科学与工程]
作者机构：[1]河南工业大学粮油食品学院,河南郑州450001, [2]河南科技学院新科学院,河南新乡453003
相关基金：国家自然科学基金项目（20976037,21176058,31171790）
相关项目：花生蛋白和油脂在反胶束体系同时分离过程中传质机理研究

关键词：反胶束, 粘度, 电导率, reverse micelle, viscosity, conductivity

中文摘要：

该实验旨在研究不同反胶束体系性质，测定丁二酸二异辛酯磺酸钠（AOT）／异辛烷单一反胶束溶液及丁二酸二异辛酯磺酸钠（AOT）-吐温85（Tween85）／异辛烷-正辛醇混合反胶柬溶液的含水量（Wo）、粘度及电导率。结果显示，在相同含水量（Wo）条件下，AOT-Tween85混合反胶束粘度及电导率均大于AOT单一反胶柬溶液；AOT反胶束溶液粘度随含水量增加呈先增加后降低，而AOT—Tween85反胶束溶液粘度随含水量增加而增大；两种不同反胶束体系电导率均随含水量增加而先增加后降低，混合反胶柬体系随AOT比例增大，电导率最大时含水量（Wo,max）向Wo值更大方向移动。通过实验结果表明，由于Wo增大，反胶束之间分子间作用力增强，从而增加反胶束聚集数，粘度随之增加；但两种反胶束体系区别主要是由于增溶水能力不同；电导率也可反映胶柬化行为；在相同条件下，AOT—Tween85反胶柬“水池”直径大于AOT反胶柬“水池”直径。

英文摘要：

This experiment is designed to study the properties of different reverse micelle , and determine Wo, viscosity and conductivity value of AOT/isooctane single reverse micelle system and AOT-Tween 85/isooctane-n-octyl alcohol mixed reverse micelle system. Results show that, on the same Wo conditions, the viscosity 0f AOT-Tween 85 mixed reverse micelle is greater than AOT single reverse micelle. The viscosity of AOT reverse micelle increased and then reduced with the increase of Wo, but AOT-Tween 85 reverse micelle increased. The conductivity value of two different reverse micelle system are increased and then decreased with the increase of Wo, and the Wo of AOT- Tween 85 conductivity value moved to a bigger Wo value as the mass ratio of the AOT increased. The experimental results show that, due to the increase of Wo, reverse micelle inter-atomic forces increase between molecules, thus the number of gathered reverse micelle increase, so viscosity increases, but the difference of two reverse micelle system is mainly due to water soluble ability. Conductivity can also react micelle change behavior, AOT-Tween 85 reverse micelle ＂pool＂ diameter is bigger AOT reverse micelle under the same conditions.

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