Product name: Hydroxypropyl Methy Cellulose
CAS No.: 9004-65-3
MF: [C6H7O2(OH)3_n(OCH2COONa)n]x
EINECS No.: 220-971-6
PH value: 3.0-11.0
Viscosity: 5-180000
HPMC is a highly pure cotton cellulose as raw material, under alkaline conditions by special etherification and preparation.White or whitish powder.HPMC decreases with the decrease of methoxide content, increase of gel point, decrease of water solubility and decrease of surface activity.
Advantages:
• Good water retention: prolonged opening time will make tiling more efficient.
• Improved adhesion and sliding resistance: especially for heavy tiles.
• Better workability: lubricity and plasticity of plaster is ensured, mortar can be applied easier and quicker.
Packing : 25 KG per woven bag made with compound woven fabric and inner PE bag.
- 15000kg (600 bags) of palletized goods in 20' container.
- 24000kg (960 bags) of palletized goods in 40' container.
Application
- Gypsum based skim coat
- Paste water resistant putty
- Dry-mixed plastering mortar
- Masonry mortar
- Joint filler
Advantages:
Water soluble and thickening ability: this product is soluble in cold water, and it can form transparent sticky solution. In organic solvent of dissolved: because it contains a certain amount of hydrophobic methoxyl, this product is soluble in some organic solvent; it is also soluble in water and organic mixed solvent.
Hydroxypropyl methyl cellulose (HPMC) salt resistance: because ion and the polyelectrolytein exsist in this product, its metal salt or organic electrolyte aqueous solution is stable.
Surface activity: HPMC for daily chemical aqueous solution has the surface activity, ensuring its emulsification, protective colloid and relative stability.
Low ash content: because ion exist in this product, in preparation process we can use hot water washing for effective refinement, so its ash content is very low.
pH stability: HPMC aqueous solution viscosity in the range of pH3.0-11.0 is more stable.
Water retention effect: this product is hydrophilic and its solution has high viscosity.
Film-forming property: HPMC can generate strong pliable and transparent sheet, which has the good oil resistance to ester performance.
Specifications:
Item | HPMC |
Methoxyl content (-OCH3),w/% | 20.0 - 28.0 |
Hydroxypropyl content (-OCH2CHOOHCH3),w/% | 5.0-11.0 |
Gelling temperature, °C | 55-80 |
Moisture content ,w/% | max 1% |
Residue on ignition,w% | max 1.5% |
Lead (Pb), ppm | max 2 |
Arsenic (As) ,ppm | max 2 |
Heavy metal | max 20 |
Viscosity (mpa.s) | 5-250,000 |
