蔡书鹏,沈昕,王速

• 1:广东科技学院机电工程学院
• 2:上海交通大学机械与动力工程学院

摘要(Abstract)：

为开发更经济的管输水技术并深入探究胶束减阻剂的减阻机理，实验测试了油烯基二羟乙基甲基氯化铵（Ethoquad O/12）稀薄水溶液的管流减阻和流变特性，反离子助剂为水杨酸钠（NaSal）。减阻测试表明，最大减阻率可达70%的量级；抗剪切能力和抗老化能力均随助剂对主剂物质的量比的增加而增强，这有别于其他阳离子胶束减阻剂的减阻特性。剪切黏度测试揭示，具有减阻效果的Ethoquad O/12稀薄水溶液是非常复杂的非牛顿流体，且随物质的量比加大，胶束结构开始编网的剪切速率增加。剪切应力松弛实验证实，0.1 s量级松弛时间表征的胶束聚合结构对减阻剂的减阻效果必不可少，小物质的量比使减阻液具有较强黏弹性，大物质的量比使黏弹性减弱。这种特殊减阻特性的揭示可为管路输水技术开发提供有力的技术支持，相应的黏弹特性可为添加剂减阻机理的探究提供新的参考判据。

关键词(KeyWords)： 输水;减阻;胶束;抗剪切性;物质的量比

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51476051)

作者(Author): 蔡书鹏,沈昕,王速

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