Hydroxypropyl methylcellulose

Hydroxypropyl methylcellulose, Hypromellose, Hydroxypropyl methyl cellulose, cellulose hydroxypropyl methyl ether, HPMC, E464, MHPC

Hydroxypropyl methylcellulose details

Hydroxypropyl methylcellulose

 


Keywords

Hydroxypropyl methylcellulose, Hypromellose, Hydroxypropyl methyl cellulose, cellulose hydroxypropyl methyl ether, HPMC, E464, MHPC

 

Physical properties

Appearance and properties: white or almost white fibrous or granular powder

Density: 1.39 g/cm3

Solubility: almost insoluble in absolute ethanol, ether, acetone; swelling in cold water into a clear or slightly turbid colloidal solution

Stability: The solid is flammable and incompatible with strong oxidants.

 

Chemical properties

1. Appearance: white or almost white powder.

2. Granularity; the pass rate of 100 mesh is greater than 98.5%; the pass rate of 80 mesh is 100%. Special specifications have a particle size of 40-60 mesh.

3. Carbonization temperature: 280-300C

4. Apparent density: 0.25-0.70g/cm (usually around 0.5g/cm), specific gravity 1.26-1.31.

5. Discoloration temperature: 190-200C

6. Surface tension: 42-56dyn/cm for 2% aqueous solution.

7. CAS number: 9004-65-3

8. Structural formula:



9. Solubility: soluble in water and some solvents, such as ethanol/water, propanol/water in appropriate proportions.

10. As the content of methoxy group decreases, the gel point of HPMC increases, the water solubility decreases, and the surface activity also decreases.

11. HPMC also has thickening ability, salt resistance, low ash powder, pH stability, water retention, dimensional stability, excellent film-forming properties, and wide range of enzyme resistance, dispersibility and adhesion.

 

Main Uses

Thickener, dispersant, binder, excipient, oil-resistant coating, filler, emulsifier and stabilizer in the textile industry. It is also widely used in synthetic resin, petrochemical, ceramic, paper, leather, medicine, food and cosmetics industries.

·

Construction industry

1. Cement mortar: improve the dispersibility of cement-sand, greatly improve the plasticity and water retention of mortar, have an effect on preventing cracks, and can enhance the strength of cement.

2. Tile cement: improve the plasticity and water retention of the pressed tile mortar, improve the adhesive force of the tile, and prevent chalking.

3. Coating of asbestos and other refractory materials: as a suspension agent, fluidity improver, and also improve the adhesion to the substrate.

4. Gypsum coagulation slurry: improve water retention and processability, and improve adhesion to the substrate.

5. Joint cement: It is added to joint cement for gypsum board to improve fluidity and water retention.

6. Latex putty: improve the fluidity and water retention of putty based on resin latex.

7. Stucco: As a paste that replaces natural materials, it can improve water retention and improve adhesion to the substrate.

8. Paint: As a plasticizer for latex paint, it has an effect on improving the handling performance and fluidity of paint and putty powder.

9. Spray coating: It has a good effect on preventing cement or latex spraying only material filler from sinking and improving fluidity and spray pattern.

10. Cement and gypsum secondary products: Used as an extrusion molding binder for hydraulic materials such as cement-asbestos series to improve fluidity and obtain uniform molded products.

11. Fiber wall: Because of its anti-enzyme and anti-bacterial effect, it is effective as a binder for sand walls.

12. Others: It can be used as a bubble-retaining agent for thin mortar, sand mortar and plaster operators.

Hydroxypropyl methylcellulose, Hypromellose, Hydroxypropyl methyl cellulose, cellulose hydroxypropyl methyl ether, HPMC, E464, MHPC

Contact Us
Get the latest price? We will reply as soon as possible (within 12 hours)
*