Hydroxypropyl Methylene Cellulose (HPMC)

Technical indexï¼Âš

Item60℃65℃75℃Methoxyl28-30%27-30%19-24%Hydroxypropyl7-12%4-7.5%4-12%Gelatification temperature58-64℃62-68℃70-90℃Moisture≤5%Ash≤1%PH:1%solution,25°C4-8

Viscosity specification :

 

TypeSpecificationRange mpa.sSpecial low viscosity53-7108-121513-18Low viscosity2520-305040-6010080-120High viscosity40003500-56001200010000-14000Special high viscosity2000017000-220002500022000-280003000027000-320004000037000-42000500002900-3900*1000004100-5600*

Property:
1. Appearance: white or off-white powder
2. Particle size: throughout efficiency of above 98.5% in 100 mesh, and 100% in 80 mesh.
3. Carbonization temperature: 280-300
4. Apparent density: 0.25-0.70g.cm3(usually about 0.5g/cm3), specific gravity: 1.26-1.31.
5. Color degradation temperature: 190-200
6. Surface tension: 42-56dyn/cn (2% aqueous solution)
7. Soluble in water and some organic solvents: its aqueous solution is of surface tension, high transparency and stable property. The solubility varies with the viscosity, the lower the viscosity is, and the higher solubility it has. The different HPMC is different in some properties and its solubility in water is not affected by pH
8. The surface activity decreases with the lower content of methoxyl, the higher temperature of gelatification, and the lower solubility in water.
9. HPMC has also other characteristic such as thickening property, pH stability, water retention, excellent film-forming property and good disperse and adhesion power.

HPMC is mainly used in the industry as dispersant in the production of PVC and as thickener, stabilizer, emulsifier, excipient, water retention agent, film-forming agent in petrochemical, building materials, agrochemical, ink, printing and dyeing of textile, paper making, cosmetic, etc. In the application of synthetic resin, the product has the advantages of uniform and loose granules and good process capability, so it basically takes the place of glutin and polyvinylbutyral (PVB). Besides, in the operation course of construction, it is mainly used for bricklaying, parget ornament and filleting. In the application of coating trade, it can be used as thickener to make the coat bright and exquisite.

Package, storage and transportationï¼Âš
　　●　Package: plastic bag outside and PVC plastic bag inside. The net weight of every bag is 20kg or 25kg.
　　●　Storage: Kept with sealing tightï¼ÂŒ protect from sunshine, rain, and wetness, and forbid keeping in touch with the acid and alkali.
　　●　Transportation: transport according to the damp-proof ordinary chemicals

We are Hongnai Chemical Co., LTD, one of professional chemical manufacturers in North of China, specializes in manufacturing, supplying and exporting the basis chemical raw materials.Following are our products: Titanium Dioxide, Iron Oxide, Lithopone, Carbon Black, Zinc Oxide, Formic Acid, Glacial Acetic Acid, Oxalic Acid, Sodium Formate, STPP, SHMP, Caustic SodaIf you need any of our products, please feel free to contact us.