Rheological properties of thickeners for digital printing

As the special rheological properties are required for thickeners used for digital printing,the rheological properties of modified polyacrylate thickener for digital printing were studied and the influence of additives such as modifiers and antifoamers and temperature on its rheological properties was obtained.The results showed that the modified polyacrylate thickener presents pseudoplastic characteristics,is relatively stable to electrolytes and less affected by non-ionic surfactants.The flow curve was fitted with exponential mode and processed with unary linear regression,and the Arrhenius equation can better describe the influence of temperature on the fluidity of polyacrylate thickener.