Optical properties of high solid content waterborne polyurethane

Recently, researchers have successfully adjusted the optical properties of high-solid water-based polyurethanes from sublight to anti-glare.
design and synthesize high-solid water-based polyurethanes with sublight and anti-glare functions by simply introducing two anions in the molecular chain without adding organic solvents throughout the process. It was found that the entire sample showed a two-peak particle size distribution
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optical modification
When 2 - (2-amino ethyl) amino) sodium ethyl sulfonate (A95)/hydrate molar ratio changes, the optical properties of the WPU can be changed from the light function (WPU-1-5) Changed to anti-glare function (WPU-1-2), with a solid content of 59.1wt% WPU-1-2 viscosity of only 480.1mPa.s.
potential for industrial applications
It is worth noting that the optical properties of emulsions are virtually unchanged after dilution, and that the 60-degree gloss and transmission rates still meet the sublight and anti-glare standards, demonstrating the potential of industrial applications.
the study was published last week: Progress in Organics Coatings Volume 126, January 2019, Pages 44-52.