Hydroxyethyl cellulose (HEC), as a multifunctional chemical substance, not only has a wide range of applications in various industrial fields, including coatings, paper, cosmetics, and petroleum extraction, but also plays an important role in environmental protection, especially in dust suppressants.

Thickener for emulsion paint must have good compatibility with lotion macromolecular compounds, otherwise it will cause micro reticulation in the film and irreversible particle aggregation, which will reduce the viscosity and coarsen the particle size. Different ionic thickeners will change the charge of lotion. For example, cationic thickeners will have an irreversible effect on anionic emulsifiers and break the emulsion. An ideal emulsion paint thickener must have the following properties.