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December 23, 2023
Special properties of hydroxyethyl cellulose
Hydroxyethyl Cellulose (HEC), a white or light yellow, odorless, non-toxic fibrous or powdery solid, is prepared by the etherification reaction of alkaline cellulose and ethylene oxide (or chlorohydrin). Nonionic soluble cellulose ethers. Because HEC has good thickening, suspension, dispersion, emulsification, adhesion, film-forming, moisture protection and protective colloid properties, it has been widely used in petroleum mining, coatings, construction, medicine, food, textiles, papermaking and polymers. Polymerization reactions and other fields.
The main characteristics of hydroxyethyl cellulose are that it is soluble in both cold and hot water, has no gel properties, has a wide range of substitution, solubility and viscosity, has good thermal stability (below 140°C), and does not produce hydroxyethyl cellulose under acidic conditions. precipitation. Hydroxyethyl cellulose solution can form a transparent film and has non-ionic characteristics that do not interact with ions and have good compatibility.
① High temperature and water solubility: Compared with methyl cellulose (MC) which is only soluble in cold water. Hydroxyethyl cellulose can be soluble in both hot and cold water and does not precipitate at high temperatures or boiling, making it Wide range of solubility and viscosity properties, and non-thermal gelability.
② Salt 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.
The main characteristics of hydroxyethyl cellulose are that it is soluble in both cold and hot water, has no gel properties, has a wide range of substitution, solubility and viscosity, has good thermal stability (below 140°C), and does not produce hydroxyethyl cellulose under acidic conditions. precipitation. Hydroxyethyl cellulose solution can form a transparent film and has non-ionic characteristics that do not interact with ions and have good compatibility.
① High temperature and water solubility: Compared with methyl cellulose (MC) which is only soluble in cold water. Hydroxyethyl cellulose can be soluble in both hot and cold water and does not precipitate at high temperatures or boiling, making it Wide range of solubility and viscosity properties, and non-thermal gelability.
② Salt 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 that of methylcellulose, and it has excellent flow regulation and excellent film-forming properties, filter loss reduction, miscibility, and protective colloid. sex.
We also can supply Furfural, Furfuryl Alcohol and Dibenzoylmethane.
