Many of our ink industry customers quite pay attention to the viscosity of the resin.
We will conclude some points for your references.
Generally speaking, the resin viscosity actually refers to the solution viscosity of the resin under specific conditions, or the solution viscosity. It has two meanings: one indicates the molecular weight of the resin; it indicates that the resin is in the solvent In the same series of resins, the higher the molecular weight is, the higher the viscosity: among the non-same series of resins, the poor solubility shows a higher viscosity. Thirdly, the resin with high dissolving viscosity has a large variable molecular weight; on the contrary, the resin with low dissolving viscosity has a small variable molecular weight. It depends on the specific situation to analyze and judge. In addition, the viscosity of the solution decreases when the temperature of the solution increases, and the viscosity increases when the concentration of the solution increases. When the diluent is excessive, the viscosity sometimes increases. This is the deterioration of the solubility. The increase in viscosity is due to the resin solution, especially when the concentration is high, it is a fluid with constant plasticity, that is, a non-Newtonian fluid. Therefore, the classic capillary method is not suitable for the determination of the viscosity of this resin.
So far, our resin lines have covered CPP resin, Polyamide resin, Maleic acid resin, Acrylic resin, Acrylic emulsion, MP series resin (MP45 resin), Vinyl resin, PU resin, and other resins.
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