Hydroxyethylcellulose(HEC),chemical formula(C2H6O2)n,is a white or light yellow,odorless,non-toxic fibrous or powdered solid prepared by etherification reaction of alkaline cellulose and ethylene oxide(or chloroethanol),belonging to the non-ionic soluble cellulose ether class.Due to its excellent thickening,suspension,dispersion,emulsification,adhesion,film-forming,moisture protection,and provision of protective colloids,HEC has been widely used in fields such as petroleum extraction,coatings,construction,pharmaceuticals and food,textiles,papermaking,and polymer polymerization reactions.
application area
Used as an adhesive,surfactant,colloid protector,dispersant,emulsifier,and dispersion stabilizer.It has a wide range of applications in fields such as coatings,inks,fibers,dyeing,papermaking,cosmetics,pesticides,mineral processing,oil extraction,and pharmaceuticals.
1.It is generally used as thickening agent,protective agent,adhesive,stabilizer,and additive for preparing emulsions,jellies,ointments,lotions,eye cleaning agents,suppositories and tablets,as well as hydrophilic gel,skeleton materials,preparation of skeleton sustained release preparations,and as stabilizer in food.
2.Used as a sizing agent in the textile industry,as well as adhesive,thickening,emulsifying,and stabilizing agents in the electronics and light industry sectors.
3.Used as a thickener and filter reducer for water-based drilling and completion fluids,it has a significant thickening effect in saline drilling fluids.It can also be used as a filtrate reducer for oil well cement.It can be cross-linked with multivalent metal ions to form gel.
4.This product is used for the exploitation of oil-water based gel fracturing fluid,polystyrene,PVC and other polymeric dispersants by fracturing method.It can also be used as a thickener for latex in the paint industry,a humidity sensitive resistor in the electronic industry,a cement retarder in the construction industry,and a water retention agent.Ceramic industry glazing and toothpaste adhesives.It is also widely used in printing and dyeing,textiles,papermaking,medicine,hygiene,food,cigarettes,pesticides,and fire extinguishing agents.
5.It is used as surfactant,colloid protective agent,emulsification stabilizer for lotion such as vinyl chloride and vinyl acetate,as well as viscosifier,dispersant and dispersion stabilizer for emulsions.Widely used in coatings,fibers,dyeing,papermaking,cosmetics,pharmaceuticals,pesticides,and other fields.It also has many uses in the oil extraction and machinery industry.
6.Hydroxyethylcellulose has surface activity,thickening,suspension,adhesion,emulsification,film-forming,dispersion,water retention,and provides protective effects in solid and liquid drug formulations.
7.It is used as dispersant for the production of petroleum water-based gel fracturing fluid,PVC,polystyrene and other polymerization.It can also be used as a thickener for latex in the paint industry,a cement retarder and water retention agent in the construction industry,a glazing agent and toothpaste adhesive in the ceramic industry.It is also widely used in industrial fields such as printing and dyeing,textiles,papermaking,medicine,hygiene,food,cigarettes,and pesticides.
Product performance
1.HEC is soluble in hot or cold water,and does not precipitate at high temperature or boiling,so it has a wide range of solubility and viscosity characteristics,and non thermal gel;
2.Non ionic type can coexist with other water-soluble polymers,surfactants,and salts on a large scale,making it an excellent colloid thickener for high concentration dielectric solutions;
3.The water retention capacity is twice that of methyl cellulose,and it has good flow regulation;
4.The dispersion ability of HEC is relatively poor compared to recognized methyl cellulose and hydroxypropyl methyl cellulose,but it has a stronger ability to protect colloids.
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