HELLUTEL Hydroxy ethyl cellulose (HEC) is a non-ionic, water-soluble polymer derived from cellulose thiough a series of chemical and physical processes.
HELLUTEL HEC is a white to light yellowish, odorless and tasteless powder, readily soluble in hot or cold water to fonn a viscous gel solution. Wlien pH in solution is within 2 to 12, the solution is quite stable. Since HELLUTEL HEC group is nonionic one in water solution, it won't be reacted with other anions or cations and insensitive to the salts. But HEC molecule is capable of generating esterification, etherification and acetal reaction, so it is possible to make it insoluble in water or improve its properties.HELLUTEL HEC also has good film-forming ability and surface activity.
TYPES AND SPECIFICATIONS
Tlie types of HELLUTEL HEC mainly differs in the solution viscosity.
Viscosity specification of HELLUTEL HEC, at 25°C, inPa.s(tested by Brookfield RVT)
Viscosity measured at a concertration of
Other specifications of HELLUTEL Hydroxy Ethyl Cellulose
Moisture content (as packed), %: 5 max. pH of a solution: 6.0-8.5
HELLUTEL HEC can be used in many fields as thickener, fluid modifier, protective colloid, stabilizer, water-loss contioller, adhesive agent, etc. It's most frequently used maximimi usage is fimctioned in latex paint as thickener and protective colloid. The detailed application is shown as below.