Hpmc 9004-65-3 Hydroxypropyl Methyl Cellulose

Methoxy, % 27-30 19-24
Hydroxypropyl, % 7.0-12 7.0-12
Gel temperature, a 55-68 70-90
Moisture, % a 5
Ash, % a 5
PH value: 6-8
Viscosity (2%, 20a ) 5-200000
Application performance
(1) Water solubility: It can be dissolved in water in any proportion, the maximum concentration depends on the viscosity, and the dissolution is not affected by pH.
(2) Organic solubility: HPMC can be dissolved in some organic solvents or aqueous solutions of organic solvents such as dichloroethane, ethanol solution, etc.
(3) Thermal gel properties: When their aqueous solutions are heated to a certain temperature, reversible gels will appear, and they have controllable quick-setting properties.
(4) No ionic charge: HPMC is a non-ionic cellulose ether and will not complex with metal ions or organic matter to form insoluble precipitates.
(5) Thickening: Its aqueous solution system has thickening properties, and the thickening effect is related to its viscosity, concentration and system.
(6) Water retention: HPMC or its solution can absorb and retain water.
(7) Film-forming properties: HPMC can be made into smooth, tough and elastic films, and has excellent anti-grease and anti-oxidation properties.
(8) Enzyme resistance: The solution of HPMC has excellent enzyme resistance and good viscosity stability.
(9) PH stability: HPMC is relatively stable to acid and alkali, and the pH is not affected in the range of 3-11.
(10) Surface activity: HPMC provides surface activity in the solution to achieve the required emulsification and protective colloid effects.
(11) Anti-sagging: HPMC increases the thixotropic performance of the system in putty powder, tile adhesive and other products, and has excellent anti-sagging ability
(12) Dispersion: HPMC can reduce the interfacial tension between phases, so that the dispersed phase can be uniformly dispersed into droplets of appropriate size.
(13) Cohesiveness: It can be used as a binder for paper with a pigment density of 370-380g/lA , and it can also be used in coatings and adhesives.
(14) Lubricity: It can be used in rubber, asbestos, cement and ceramic products to reduce friction and improve the pumpability of concrete slurry.
(15) Suspension: It can prevent the fixed particles from settling out and inhibit the formation of precipitates.
(16) Emulsification: Since it can reduce the surface and interfacial tension.
(17) Protective colloid: a protective layer is formed on the surface of the dispersed droplets to prevent the droplets from merging and aggregating to achieve a stable protective effect.