Hydroxyethyl cellulose (HEC) is a non-ionic soluble cellulose ether derivatives that can coexist with many other water-soluble polymers, surfactants, and salts. HEC has the properties of thickening, suspension, adhesion, emulsification, stable film formation, dispersion, water retention, anti-microbial protection and colloidal protection. It can be widely used in coatings, cosmetics, oil drilling and other industries. The main properties of Hydroxyethyl cellulose(HEC) are that it can be dissolved in cold water and hot water, and has no gel characteristics. It has a wide range of substitution, solubility and viscosity. It has good thermal stability (below 140C) and does not produce under acidic conditions. precipitation. The hydroxyethyl cellulose solution can form a transparent film, which has non-ionic features that do not interact with ions and have good compatibility.