Cellulose ether
Cellulose ether
Hydroxypropyl Methy Cellulose HPMC Tile Cement Adhesive
High Viscosity Cellulose Ether HPMC From China Factory
Cellulose Ether HPMC for Construction Mortar
Cellulose ether HPMC is a non-ionic, water soluble white powder. It can be used as an agent of water retention, thickening, adhesive and dispersing, and also plays a role of protective colloid, stabilizer,suspension and film forming.
cellulose ether HPMC is widely used in tile adhesives, wall putty/skim coat, plaster/render mortars, EIFS, tile grouts, joint filler, self leveling compounds, detergents, ready to use paints and coatings, etc.
Hydroxy Propyl Methyl Cellulose ( HPMC )
CAS No.: 9004-65-3
1. water-soluble, non-ionic cellulose cellulose ether
2. odorless, tasteless, non-toxic, white powder
3. dissolved in cold water, forming a clear or slightly solution
4.properties of thickening, binding, dispersing, emulsifying, film-forming, suspension, adsorption, gel, surface activity, water retention and protective colloid.
PHYSICAL AND CHEMICAL PROPERTIES:
* Particle size: 98.5% passes through 100 mesh; 100% passes through 80 mesh.
* Charring temperature: 280-300ºC.
* Bulk density: 0.25-0.70 g/cm3 (Usually around 0.5 g/cm3 )
* Real specific gravity: 1.26-1.31.
* Browning temperature: 190-200ºC.
* Surface tension: (2% water solution) 42-56dyn.cm.
* Properties: Dissolved in water and some organic solvent such as ethanol. propyl alcohol. ethylene chloride, the water solution is of surface activity. It is a nonionic surface active agent. Gelation temperature is different for different grades. For example, among 60RT
Hydroxypropyl Methylcellulose, 60 is gelation temperature, Namely, 2% water solution will form gelation at 60%.
|
Chemical name |
Hydroxy Propyl Methyl Cellulose(HPMC) |
|
Appearance |
White, off white powder |
|
Viscosity |
400-75,000 cps by Brookfield @2% solution
400-200,000 cps by DNJ-1 @2% solution |
|
Ash content |
max 5% |
|
Methoxy content |
19-24% |
|
Hydroxypropyl content |
4-12% |
|
Gel Temperature |
70-90 ºC |
|
Particle Size |
min 80 mesh |
|
pH value |
6-8
|
Cellulose ether Application:
Tile Adhesive:
1 Good water retention: it can prolonged opening time , to make tiling more efficient 2 Improved adhesion and sliding resistance especially for heavy tiles
3 Better work-ability: lubricity and plasticity of plaster is ensured, mortar can be applied easier and quicker
Cement Based Plaster:
Easy dry mix formulation due to cold water solubility: lump formation can be easily avoided, ideal for heavy tiles.
Good water retention: prevention of fluid loss to the substrates, the appropriate water content is kept in mixture which guarantees longer concreting time
Increased water demand: increased open time, expanded spry area and more economical formulation
Easier spreading and improved sagging resistance due to improved consistency
Exterior Heat Insulation System ( EIFS ):
Improved adhesion
Good wetting ability for EPS board and substrate 3 Reduced air entrainment and water uptake.
Self-leveling:
Protection from water exudation and material sedimentation
No effect on slurry fluidity with low viscosity HPMC, while its water retention characteristics improve the finish performance on the surface.
Crack Filler:
1 Better workability: proper thickness and plasticity 2 Water retention ensures prolonged work time
2. Sag resistance: improved mortar bonding ability
Gypsum Based Plaster:
Water retention: maximized water content in slurry ensures complete gypsum concretion.
2.Anti-sagging: when spreading a thicker coat corrugation can be avoided ( careful when air is entrained )
3.Increased mortar yield: depending on the weight of the dry mixture and appropriate formulation HPMC can increase the mortar
Ceramic Extrusion:
Excellent workability for ceramic molding due to lubricity and plasticity
Compact texture and smooth surface of ceramic product due to negligible ash content
