Zusammenfassung
Terahertz time-domain spectroscopy (THz-TDS) is used to investigate the water content in synthetic lubricating oils. Water was added to polyglycol oils, which are able to dissolve a certain percentage of water. Applying THz-TDS, changes in the absorption coeff. and refractive index are obsd. and characterized. Comparison of the exptl. data with predictions based on Beer-Lambert and ...
Zusammenfassung
Terahertz time-domain spectroscopy (THz-TDS) is used to investigate the water content in synthetic lubricating oils. Water was added to polyglycol oils, which are able to dissolve a certain percentage of water. Applying THz-TDS, changes in the absorption coeff. and refractive index are obsd. and characterized. Comparison of the exptl. data with predictions based on Beer-Lambert and Lorentz-Lorenz-theory, resp., exhibited excellent agreement and clearly indicated that water is not dissolved in form of clusters but rather via hydrogen-bonded oil-water complexes.