Refractive indices of metal working fluid emulsion components
Refractive indices of metal working fluid emulsion components
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DOI：
10.1088/0957-0233/25/3/035205
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发表时间：
2014-03-01
影响因子：
2.4
通讯作者：
Fritsching, Udo
中科院分区：
文献类型：
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作者：
Glasse, Benjamin;Zerwas, Alexander;Fritsching, Udo
用于机械加工过程的金属加工液（MWF）通常配制为水包油乳液，由具有乳化油相的水性基质和添加剂组成。这些乳液在其使用寿命内退化，导致物理属性改变，例如液滴尺寸或浓度增加。这种时间变化可以通过光学测量技术来监测，这需要了解水相和油相的折射率以进行液滴尺寸测量。水相的光学分散性在文献中有广泛的记载;然而，对于MWF的油相没有适当的参考文献。因此，在本研究中，确定了通常用于MWF制剂的油的折射率对光波长的依赖性。使用阿贝折射计在室温（22 +/-2 ° C）下在可见光范围内在430和680 nm之间的波长下进行测量。将结果拟合到描述系统的光学色散的柯西色散方程。
Metal working fluids (MWF) used in machining processes are typically formulated as oil-in-water emulsions, consisting of an aqueous base with an emulsified oleous phase and additives. These emulsions degenerate over their lifetime leading to changed physical attributes, for instance increased droplet size or concentration. This temporal change may be monitored via optical measurement techniques, which require knowledge of the refractive index of the aqueous and oleous phases for the droplet size measurement. The optical dispersion of the aqueous phase is widely documented in the literature; however, there are no proper references available for the oleous phase for MWF. Thus, in this study the dependence of refractive indices on the wavelength of light of oils that are typically used for the formulation of MWF was determined. The measurements were performed using an Abbe refractometer at room temperature (22 +/- 2 degrees C) in the visible light range at wavelengths between 430 and 680 nm. The results were fitted to the Cauchy dispersion equation describing the optical dispersion of the systems.