Sustainable ingredients for polyurethane coatings.

The antioxidant activity of unaltered psoria and organic solvent helicovin has been studied and can be used as a sustainable ingredient in polyurethane coatings.
scientists used the Folin-Ciocalteu (FC) assay to study the antioxidant properties of four different sulphate ligands (KL) and another organic solvent ligand (OSL).
this end, the corresponding FC assay procedure is adjusted and optimized to make it suitable for

. Different solvents were tested, and DMSO and saturation sodium carbonate (Na 2 CO 3), which regulate pH, showed the best results. Due to the highest measurement coefficient, an absorption wavelength of 740 nm was selected.
Compared to organic solvent ligands, psoria has a higher antioxidant activity
antioxidant properties of various ligands and associated free-form removal activity are associated with biomass properties (cork and grass) and pulping methods (ppylo paper and organic solvents). The results show that psoria has higher antioxidant activity than organic solvent helivine. The first is the preparation of polyurethane coatings derived from the woodiness of unaltered psoria. The film prepared by rotary coating shows high flexibility and transparency.
the study can be found in volume 16 of the Journal of Coating Technology and Research.
.