
HYDROXYPROPYL METHYLCELLULOSE(HPMC)
The product presentation:The business scope of the company is hydroxypropyl meth
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HYDROXYPROPYL METHYLCELLULOSE(HPMC)
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Product Description
The product presentation:
The business scope of the company is hydroxypropyl methyl cellulose production and sales of the product element.
Hydroxypropyl methyl cellulose main raw materials by refined cotton, methylene chloride, propylene oxide,liguid alkali added to the reaction kettle, after etherification reaction alkalization reaction washing, filtering, drying and grinding finished products
The carboxymethyl cellulose is made from refined cotton,liguid alkal and ethanol, which are added into the reactor and then washed,
filtered, dried and ground through etherification reaction and alkalization reaction.
Application field
Hydroxypropyl methyl cellulose is a fame as the "industrial monosodium glutamate" is widely used in medicine, petroleum, building materials, food and daily chemical and other industries,its property mainly includes the thickening property, good water solubility,suspension and emulsion stability, protective colloid, and water and film adhesive performance, non-toxictasteless, biocompatibilitythixotropy, etc.
Molecular Composition and StructuralFormula:
Molecular Composition and Structural Formula:
PHYSICOCHEMICALPROPERTIES:
1.Appearance:whiteor quasi-white powder.
2. Particle size: 80 mesh pass rate of100% , 100 mesh pass rate of more than 99.5%.
3.Carbonizationtemperature:280-300°C
4.Apparent density:0.25-0.70g/cm3 (usuallyaround 0.5g/cm3),specific gravity 1.26-1.31.
5.Discoloration temperature:190-200°C.
6.SurfaceTension:2%aqueous solution is 42-56 dyn/CN
7. Solubility: soluble in water and some organic solvents such as ethanol water, Dichloroethane, etc. . Theaqueous solution has surface activity. The solubility of HPMC varies with the viscosity, the lower the viscosity,the greater the solubility. The properties of HPMC of different specifications are different, the dissolution ofHPMCin wateris not affected by PH.
8. with the decrease of methoxyl content, HPMC gel point increased, water solubility and surface activitydecreased.
9. HPMC also has the thickening ability, salt drainage, low ash, acid-base stability, water retention, stabilityexcellent film-forming, as well as a wide range of enzyme resistance, dispersion and adhesion and othercharacteristics.
Viscosity specifications:
Packaging,storageand Transportation Considerations:
The net weight ofeach bag (plastic coated PP woven bag lined with polyethylene film or card.board inside the bag sealing plastic bags):25.0kg. Please prevent from the sun and rain andmoisture during storage and transport.
MAIN PURPOSE:
This product is an industrial grade HPMC. lt is mainly used as a dispersant in the production of polwvinyl chloride. ltis the main additive in the preparation of PVc by suspension polymerization. In addition, it is used as thickener,stabilizer, emulsifier and excipient in the production of petrochemical, building materials, cement mortar, puttypowder, agricultural chemicals, ink, textile printing and dyeing, ceramics, paper making, cosmetics and otheiproducts, water-retaining agent, film-forming agent, etc.. its application in synthetic resins has resulted in productswith regular, loose particles, suitable specific gravity and good processability, which have largely replaced Gelatin andpolyvinyl alcohol as dispersants. in addition, in the construction process of the construction industry, mainly used forwall laying, stucco, jointing and other mechanized construction, especially in the decorative construction, used aspaste ceramic tile, marble, plastic decoration, paste strength is high, it can also reduce the amount of cement usedUsed as thickener in coatings industry, can make the coating bright and delicate, not off-powder, improve levelingperformance. lt can be used for plastering gypsum, bonding gypsum, jointing gypsum, water-resistant putty tosignificantly improve its water retention, bonding strength and so on. Also can be used in functional ceramicsmetallurgy, seed coating agent, water-based ink, cosmetics, electronics, printing and dyeing, paper and other fields.
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