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HEC(Hydroxy Ethyl Cellulose)

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)

Type

Viscosity measured at a concertration of

1%

2%

HR 4000

3400-5000


HR 3000

2600-3300


HR 2000

1500-2500


HR 1000

800-1500


MR 5000


4500-6500

MR 2000


1500-2500

MR 300


150-400


Other specifications of HELLUTEL Hydroxy Ethyl Cellulose

Moisture content (as packed), %: 5 max. pH of a solution: 6.0-8.5

APPLICATIONS

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.