Effects of Thickeners on Viscosity of Emulsion Paint

Emulsion paint was prepared by using different thickeners.The effects of amount of thickeners on the viscosity of emulsion paint and the mechanism of thickening were investigated.The experimental results showed that viscosity of emulsion paint increased slowly with increasing the montmorillonite powder dosage.The viscosity increased much more obviously with increasing the HEC dosage than that with HPMC,MC by using the same dosage,respectively.And the viscosity of emulsion paint with MC as the thickener increased less slowly than that with HPMC.The viscosity increased slowly with increasing the ASE dosage,and increased apparently with increasing the HASE dosage,while HEUR lied between the former two by using the same dosage.The pH value of emulsion paint increased fast with increasing the AMP-95 dosage than that with ammonia as the pH value regulator.The viscosity of emulsion paint kept the same with increased the pH value by adding inorganic thickener,cellulosic thickener or HEUR respectively,while increased with increased the pH value by adding alkali swell-able thickener and then kept the same.