TURBIDIMETRY FOR THE STABILITY EVALUATION OF EMULSIONS USED IN MACHINING INDUSTRY
TURBIDIMETRY FOR THE STABILITY EVALUATION OF EMULSIONS USED IN MACHINING INDUSTRY
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DOI：
10.1002/cjce.21930
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发表时间：
2014-02-01
影响因子：
2.1
通讯作者：
Fritsching, Udo
中科院分区：
文献类型：
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作者：
Glasse, Benjamin;Assenhaimer, Cristhiane;Fritsching, Udo
乳化液用于许多工业和消费领域，例如食品或健康行业的产品以及机械加工行业的技术流体。金属加工液（MWF）在金属加工过程中用作冷却剂和润滑剂。在使用过程中，MWF乳液可能会改变其物理和化学性质，从而影响其性能并降低物理稳定性，从而降低其使用寿命。本文讨论了用于过程控制、MWF质量监控和配制目的的MWF乳液的浊度光谱测量结果。因此，进行了实验室实验，研究物理稳定性。用不同浓度的盐对金属加工乳化液进行处理和去稳定化。通过未稀释的浊度测量来监测去稳定化过程，并通过波长指数的时间变化来评价。因此，可以确定特定条件，例如用于维持MWF制剂稳定性的特定临界盐浓度。
Emulsified fluids are used in many industrial and consumer areas, for instance as products in the food or health industry as well as technical fluids in the machining industry. Metalworking fluids (MWF) are used as coolants and lubricants in metalworking processes. During their usage MWF emulsions may change their physical and chemical properties, which influences their performance and decrease the physical stability and therefore their lifetime. This article discusses results of turbidimetric spectra measurement of MWF emulsions to be used for process control, MWF quality monitoring and formulation purposes. Therefore, laboratory experiments have been carried out investigating the physical stability. Metal working emulsions have been treated and destabilised by different concentrations of salts. The destabilisation process was monitored by undiluted turbidity measurements and evaluated by the temporal change of the wavelength exponent. Thus, it was possible to determine specific conditions, for example a specific critical salt concentration for maintaining, stability of the MWF formulations.