Focus on Cellulose ethers

What is Difference of HPMC and HEC?

HPMC is Hydroxypropyl methyl cellulose ether and HEC is hydroxyethyl cellulose ether.

Hydroxypropyl methyl cellulose (HPMC) introduction:

1, construction industry: as water and silt slurry water retention agent, retarder to make slurry pumping. In plastering, gypsum, putty powder or other building materials as adhesive, improve daub and prolong the operation time. Used for pasting ceramic tile, marble, plastic decoration, paste strengthen agent, still can reduce cement dosage. HPMC water retention performance makes the slurry after application will not be due to dry too fast and crack, enhance the strength after hardening.

2, ceramic manufacturing: widely used as adhesive in ceramic product manufacturing.

3, coating industry: in the coating industry as a thickener, dispersant and stabilizer, in water or organic solvents have a good solubility. As a paint remover.

4, ink printing: in the ink industry as a thickener, dispersant and stabilizer, in water or organic solvents have a good solubility.

5, plastic: for forming release agent, softener, lubricant, etc.

6, PVC: PVC production as a dispersant, suspension polymerization preparation of PVC main auxiliaries. 7, Others: this product is also widely used in leather, paper products industry, fruit and vegetable preservation and textile industry

Hydroxyethyl cellulose (HEC) introduction:

HEC Hydroxyethyl cellulose, as a kind of nonionic surfactant, besides thickening, floating, floating, and film-forming, dispersion, water, and provide a protective colloid, also has the following properties:

1, HEC soluble in hot water or cold water, hot or boiling not precipitation, make it has a wide range of solubility and viscosity properties, and non thermal gel;

2, its non-ionic can coexist with a wide range of other water-soluble polymers, surfactants, salts, is an excellent colloidal thickener containing high concentration of electrolyte solution;

3, water retention capacity is twice higher than methyl cellulose, with good flow regulation, 4, HEC dispersion ability compared with the recognized methyl cellulose and hydroxypropyl methyl cellulose dispersion ability is the worst, but the colloidal protection ability is the strongest.

Usage: generally used as thickening agent, protective agent, adhesive, stabilizer and additive in preparation of emulsion, jelly, ointment, lotion, eye clearing agent, suppository and tablet, also used as hydrophilic gel, skeleton material, preparation of skeleton type sustained release preparation, can also be used as stabilizer in food.

Post time: Apr-15-2022
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