ProductDescription
HPMC(hydroxy propyl methyl cellulose)is anonionic cellulose ether with white or cream white powder.It is equipped with thickening, water retention,filmforming, surfaceactivity, lubrication,emulsification,suspension and other functions.This type cellulose ether also has curdlan,antiferment,odorless,tasteless,stableunde rPH value andother features.
CAS:9004-65-3
ChemicalFormula:C56H108O30
Application
HPMC is used in industry for the main purpose of the productio nof PVC in dispersing agent,and system suspension polymerization preparation PVC mainadditives.In addition, in other petrochemical,paint, building materials,paintremover,agriculturalchemicals, printingink,textile printinganddyeing, ceramics,paper,cosmetics and other products production of thickening agent,stabilizer,emulsifier,water retentionagent,film formingagent,etc.In the applicationof synthetic resin,can make products with particle neat,loose,depending on the specific gravityis appropriate, processing characteristics of excellent performance,so astobasically replaced gelatin and PVA asdispersingagent.In addition,in the construction industryin the process of construction,mainly for the wall, mortar plaster,cement mortar, cementitious products and mechanization construction, especiallyin decorative construction,used as stickupceramic tile,marble,plastic adornment,paste high strength, but also can reduce the dosage of cement. Usedin paint industryin thickeningagent,can make the layer light is exquisite,not to take off powder,improve the levelling properties.
PhysicalandChemicalProperties
1.Appearance:white or kindofwhitepowder.
2. Odor:Odorless.
3.Granularity:100meshpercentofpassmore than98.5%, 80meshpassing rateis more than100%.
4.Carbonizationtemperature:280-300℃
5. Apparentdensity:0.25-0.70/ cm3(usually in0.5g/cm3or so),specificgravityof1.26-1.31.
6.Color temperature:190-200
7. Surface tension: 2% aqueous solution for 42-56 dyn/cm.
8. HPMC can be soluble in water and part of the solvent, such as the right proportion of ethanol water, propyl alcohol/water, trichloroethane, etc., aqueous solution has the surface activity. Transparency is high, stable performance, different specifications of products gel temperature is different, solubility with viscosity and change, the low viscosity, solubility, the greater the different specifications HPMC its performance has a certain difference, HPMC in dissolved in water are not affected by PH value influence.
9. HPMC with methoxy content reduce, gel point rise, water solubility drops, the surface activity also declined.
10. HPMC also has the thickening ability, salt resistance low ash powder, PH stability, water retention, dimension stability, excellent film-forming property, and a wide range of resistance to enzymatic, dispersity and caking characteristics.
