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.
HPMC has thickening ability, salt resistance, low ash powder, pH stability, water retention, dimensional stability, excellent film forming, and a wide range of enzyme resistance, dispersion and adhesion.
Standard Packing: In 25kg bags out HDPE bags inner with LDPE bags
Store it in a cool, dry place below 30degree and protected against humidity and pressing, since the goods is thermoplastic, storage time should not exceed six months.
Quantity/20GP:12Tons with pallets,14tons without pallets
Quantity/40GP:24Tons with pallets ,28tons without pallets
Application range
- External wall insulation system (EIFS)
- Interior and exterior bonding agents pointing agent
- Tile adhesive mortar
- Crack Filler
- Self-leveling mortar
- Gypsum-based plaster
- Ceramic Extrusion
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 |
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