The main properties of hydroxyethyl cellulose are that it is soluble in both cold water and hot water, and has no gel properties. It has a wide range of substitution degree, solubility and viscosity, good thermal stability (below 140°C), and does not produce gelatin under acidic conditions. precipitation. Hydroxyethyl cellulose solution can form a transparent film, and has the characteristics of non-ionic type that does not interact with ions and has good compatibility.

Performance

① High temperature resistance and water solubility: Compared with methylcellulose (MC) which is only soluble in cold water, hydroxyethyl cellulose can be dissolved in hot water or cold water, and does not precipitate at high temperature or boiling, making it have Wide range of solubility and viscosity characteristics, and non-thermogelling properties.

②Salt tolerance: Since it is non-ionic, it can coexist with a wide range of other water-soluble polymers, surfactants, and salts. Therefore, compared with ionic carboxymethyl cellulose (CMC), hydroxyethyl cellulose has better salt resistance.

③Water retention, leveling, and film-forming properties: its water-retaining capacity is twice as high as that of methyl cellulose, and it has excellent flow regulation, excellent film-forming properties, fluid loss control, miscibility, and protective colloid sex.

Application

Since HEC has good properties of thickening, suspending, dispersing, emulsifying, bonding, film-forming, protecting moisture and providing protective colloid, it has been widely used in oil exploration, coatings, construction, medicine, food, textile, papermaking and polymer Polymerization and other fields.