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Hydroxypropyl Methyl Cellulose HPMC
Specifications
1.Improve spreadability
2.Prolong operation time
3.Reduce the dosage of cement
4.Enhance the strength after hardening
 
Specification:
1. Hydroxy propyl Methyl Cellulose HPMC
2. Nice additive for construction
3. High quality, competitive price and best service
 
1. Product Introduction
 
 
Generic Name Hydroxypropyl Methyl Cellulose
Abbreviations HPMC
CAS NO. 9004-65-3
Conform to the standards Enterprise standard
 
 
2.Technical Specifications
 
 
C6H7O2 OH x OCH3 y OCH2CHOHCH3 zn
ITEM (%) INDEX
Hydroxypropyl content 7.0—12.0 4.0-8.5 4.0-12.0
Methoxyl content  28.0-32.0 27.0-32.0 19.0-24.0
Moisture  ≤5.0
Ash content ≤5.0
Viscosity (mpa.s) 2.4---250, 000
Light transmittance ≥70
Whiteness ≥75
Bulk densityg/l 370---420
Appearance white or off-white fibrous or granular powder: odorless, tasteless.
 
 
3. Product Application
 
In building materials as cement slurry water retention agent, retarder enable mortar with pumping. In the plastering gypsum material, putty powder, or other materials as adhesive, improve spreadability and prolong operation time. Used as a paste ceramic tile, marble, decorative plastic, paste enhancer, also can reduce the dosage of cement. HPMC water retention properties make slurry in paint will do not dry too fast and cracking, enhance the strength after hardening. In addition, in other petrochemical, paint, building materials, paint remover, agricultural chemicals, ink, textile printing and dyeing, ceramics, paper, cosmetics and other products production as thickener, stabilizer, emulsifier, excipients, water-retaining agent, film forming agent.
 
 
4. Physical and Chemical Performance
 
 
1›. The appearance: white or white powder, odorless and tasteless.
2›. Pacticle size: 100 order by the rate of more than 98.5%; 80 mesh through rate in 100%.
3›. The carbonization temperture: 280-300°c.
4›. The appearant density: 25-0.70g/(usually 0.5g/). Specific gravity 1.26-1.31.
5›. Temperture: 190-200°c.
6›. Spontaneous combustion temperature of about 360°.
7›. The surface tension of aqueous solution of 42-56dyn/cm:20%.
8›. HPMC with methoxyl content decreases, the gel point elevation, dissolved in water decline, surface activity also decreased.
9›. The solution: soluble in water and organic solvents, such as an appropriate proportion of ethanol/water, isopropanol/water, two chlorine ethane and Aqueous solution with surfactant, high transparency, stable performance. Products of different specifications in different gel temperatures, this is HPMC thermal gelation properties. The solubility increases with the viscosity and viscosity change, the lower the solubility, higher, different specifications of the HPMC properties have some differences. HPMC solubility in water is not affected by PH value influence.