Hydroxypropyl methyl cellulose HPMC is a propylene glycol ether of methyl cellulose, in which hydroxypropyl and methyl are bonded by ether bond and anhydrous glucose ring of cellulose, white to gray white cellulose powder or particles, similar to methyl cellulose cold water solubility and hot water insoluble properties. Its solubility in organic solvents is better than that in water-soluble, and it is soluble in anhydrous methanol and ethanol solutions, as well as in chlorinated hydrocarbons and ketones. Soluble in water, its aqueous solution has surface activity, forming a thin film after drying, after heating and cooling, successively undergo a reversible conversion from sol to gel. It can be used alone or in combination with other emulsifiers and stabilizers in cold drinks
Test item | Unit | Specification | Result |
Appearance | / | White | White |
Form | / | Solid | Solid |
Smell | Odorless | odorless | |
Viscosity | CPS | 25℃ S14/10rpm
90000~110000 |
95000 |
Water content | % | 4-6 | 4-6 |
Ash | 3 | 3 | |
Methoxyl | % | – | 19-22 |
Hydroxypropyl | % | – | 6-12 |
PH value (25℃) | – | – | 6-8.5 |
Gel temperature | ℃ | – | 70-90 |
Fineness | Mesh | – | 100mesh >96% |
Density | g/㎝3 | – | 0.4-0.6 |
Proportion | G/l | – | 420-520 |
Retention rate | % | – | 93% |
Transmittance | % | – | ≥65 |
thermochromic temperature | ℃ | – | 190-200 |
Carbonization temperature | ℃ | – | 280-300 |
Application
It has been widely used in petrochemical, paper making, leather, textile printing and dyeing, medicine, food, cosmetics and other industries, as dispersant, thickener, adhesive, excipient, capsule, oil resistant coatings and fillers.
Packing
25KG/BAG