HPMC can widely used as thickening agents and water retention agents in constructioon materials.It can also be used in adjusting the consistence,developing workability,prpolonging open time and increasing the adhesion.
Soluble in some organic solvents and water | It can be dissolved in cold water; the highest concentration only depends on the viscosity. Solubility changes according to the viscosity, lower viscosity causes greater solubility. Some brands of products can be dissolved in binary organic solvent and organic solvent water system.
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Salt resistance | Nonionic cellulosic ether product is not a polyelectrolyte, so when a metal salt or organic electrolyte exists, it is stable in aqueous solution, but excess electrolytes could cause gel and precipitation. |
Surface activity | As the aqueous solution with surface activity, can be used as colloid protective agent, emulsifier and dispersant. |
Curdlan
| When product solution heated to a certain temperature, becomes opaque, gel formation of precipitation, but at the time of continuous cooling, then returned to the original solution, the gel and precipitation temperature mainly depends on their lubricant, suspending agent, protective colloid, emulsifier and so on. |
Metabolism of inert and low odor and flavor | Because they are not metabolism and have low odor and flavor, so they are widely used in the food and drug.
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Fungus resistance | It has a better anti-mildew ability, good stability of viscosity in long term storage.
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PH stability
| viscosity of aqueous solution of products is not subject to the influence of acid or base, PH value is stable in 3.0~11.0
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Low ash content | Since the product is non-ionic, in the course of preparation can be washed with hot water effectively refined, so it has low ash content. |
Shape | Due to the high concentration of aqueous solution compared with other polymers has special visco elastic property, it is added to improve the shape retention of extruded ceramic products |
Water retentivity | The product has hydrophilic and high viscosity of the water solution, it is a efficient water retention agent. |
Other features | thickening agent,filmogen,binder,lubricant,suspending agent ,protective colloid,emulsifier,etc. |
STORAGE
Keep in a dry place away from heat and sunlight,
store in sealed containers.
SPECIFICATIONS
Item | Methyl Cellulose | Hydroxypropyl Methyl Cellulose | Hydroxyethyl Methyl Cellulose | ||
Grade | MC | ME | MF | MK | HEMC |
Methoxy (%) | 28-32 | 28-32 | 27-30 | 19-24 | 22-32 |
Hydroxypropoxy (%) | 7.5-12 | 4-7.5 | 4-12 | ||
Gelationtemperature(°C) | 52-67 | 58-64 | 62-68 | 70-90 | 60-90 |
Appearance | White or off-white powders | ||||
Moisture (%) | ≤5.0 | ||||
Ash (%) | ≤0.5(1.0Industry grade) | ||||
PH value | 4.0-8.0 | ||||
Chloride (NACL%Nacl) | ≤0.2(Pharma.grade) | ||||
PPM Heavy metals (ppm) | ≤20(Pharma.grade) | ||||
PPM Arsenic | ≤2(Pharma.grade) | ||||
Viscosity(mpas) | 5-180000 |
Grade | Viscosity scope | Grade | Viscosity scope | Grade | Viscosity scope |
5 | 3-9 | 1500 | 1200-1800 | 40000 | 36000-45000 |
15 | 10-20 | 4000 | 3600-5500 | 60000 | 56000-65000 |
25 | 20-30 | 8000 | 7000-9000 | 75000 | 70000-80000 |
50 | 40-60 | 10000 | 9000-1100 | 100000 | 85000-130000 |
100 | 80-120 | 15000 | 13000-17000 | 150000 | 130000-180000 |
400 | 300-500 | 20000 | 18000-22000 | 200000 | ≥180000 |
manufacturer of cellulose ethers hpmc