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首页> 外文会议>International Symposium on Asphalt Emulsion Technology: Manufacturing, Application, and Performance, Nov 11-14, 1999, Washington, DC >CHARACTERISATION OF INTERFACIAL PHENOMENA OF BITUMEN/EMULSIFIER AQUEOUS SOLUTION
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CHARACTERISATION OF INTERFACIAL PHENOMENA OF BITUMEN/EMULSIFIER AQUEOUS SOLUTION

机译：双乳/乳化剂水溶液的界面现象的表征

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摘要

The quality of emulsion-grade bitumen is usually evaluated on the basis of the properties of the corresponding emulsion. The sessile drop tensiometer has proven to be quite useful for studying the interfacial phenomena of bitumen/acidic water systems. With this technique, it has been shown that polar species in the bitumen migrate to the interface ; this could lead to surface structuring. As the adsorption of emulsifier at the interface bitumen/aqueous emulsifier solution induces a decrease in interfacial tension, this measurement technique also enables us to evaluate the effectiveness of various emulsifiers for a given bitumen, in relation to the quantity of emulsifier adsorbed on bitumen particles in the emulsion. Different behaviours in terms of bitumen/emulsifier interactions according to bitumen nature have been outlined too.
机译：乳液级沥青的质量通常根据相应乳液的性能进行评估。固滴张力计已被证明对于研究沥青/酸性水系统的界面现象非常有用。用这种技术已经表明，沥青中的极性物质迁移到界面。这可能导致表面结构化。由于乳化剂在界面沥青/乳化剂水溶液上的吸附引起界面张力的降低，因此该测量技术还使我们能够相对于乳化剂吸附在沥青中的乳化剂数量来评估各种乳化剂对于给定沥青的有效性。乳液。还概述了根据沥青性质在沥青/乳化剂相互作用方面的不同行为。

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