HEC is a thickener commonly used in latex paint coatings and has the following benefits:
HEC is non-ionic and can be used in a wide pH range (2-12). It can be mixed with the components in general latex paint (such as pigments, additives, soluble salts and electrolytes) without abnormal phenomena.
The paint thickened with HEC has pseudoplasticity, so it can be applied by brushing, roller coating, spraying and other construction methods. It has the advantages of labor saving, not easy to drip, hang and splash, and has good leveling property.
Due to the inconspicuous water surface tension characteristics of the HEC aqueous solution, it is not easy to foam during production and construction, and the tendency to produce volcanic cave pinholes is less.
Hydroxyethyl cellulose (HEC) has excellent miscibility to most colorants and binders, so that the formulated latex paint has good color consistency and stability.
During the storage of the paint, it can maintain the dispersibility and suspension of the pigment, without the problems of floating and blooming. There is less water layer on the surface of the paint, and its viscosity is still relatively stable when the storage temperature changes.
As a non-ionic surfactant, hydroxyethyl cellulose has the functions of thickening, suspending, binding, floating, film forming, dispersing, water retention and providing protective colloid.