Hydroxypropyl Methyl Cellulose (HPMC)

We are one of the leading manufacturer of Hydroxypropyl methyl cellulose (HPMC) Properties: 1. Appearance: HPMC is white or similar to white fiber or granular powder; Odorless. 2. Properties: Almost inso Luble in ethanol, ether and acetone; Quickly dispersed in 80-90 centigrade water; Aqueous solution is very stable in room temperature; Has good wetting/dispersing/adheisve/thickening/emlusifying/water preserving/film-forming properties; Can prevent the infilration of grease; Film formed has excellent flexibility and trransparency; Has good compatibility with other emulsifier; Easy salting-out. Its solution is stable with pH 2-12. 3. Apparent density: 0.30-0.70g/cm3, density is 1.3G/cm3. Dissolving process HPMC will agglomerate when directly added to water and then dissolve. In this way it dissolves very slow and hard. Suggested methods as followers: 1. In hot water. HPMC does not dissolve in hot water. The primary HPMC can be uniformly disperse in hot water. Then cool down in two ways: A) Add hot water in container and heated to over 70 centigrade. Add HPMC gradually while slowly, stir. At the beginning, HPMC float on the top of water, then turns into slurry state stir and cool down. B) Add water in container to 1/3 or 2/3 of its content. Heated to over 70 centigrade add HPMC by sequence of a). Make it disperse to form slurry state. Add cool water or ice to the resideual content, stir and cool down the mixture. 2. Powder combination. Mix HPMC with identical volume of other powder, disperses them sufficiently then add water to the Application It is widel used as thickener, adhesive, water preserving agent, film-forming agent in construction, building materials, dispersion coating, wallpaper paste, polymerization aids, leathers, printing ink and paper making etc. L also used in petroleum drilling and daily-use chemicals Packing Packed in 25kgs complex paper bag inner with PE bag, bags are wrapped tightly in pallets. Stored indoors in dry and draughty place, avoid rain and sunlight during transporting. Technical index Quality Standard: Q/79339844-1.01-2008 Building and PVC suspension polymerization Product MC HPMC MA HF HE HJ HK Methoxy Content (%) 27.0-32.0 27.0-30.0 28.0-30.0 16.5-20.0 19.0-24.0 Degree of substitution 1.7-1.9 1.7-1.9 1.8-2.0 1.1-1.6 1.1-1.6 Hydroxyl propoxy Content (%) 4.0-7.5 7.5-12.0 23.0-32.0 4.0-12.0 Degree of substitution 0.1-0.2 0.2-0.3 0.7-1.0 0.1-0.3 Water content (Wt %) ≤5.0 Ash content (Wt %) ≤1.0 PH 5.0-7.5 Appearance milk white or white granules or powder Fineness 80 meshes,100 meshes,120 meshes Viscosity (mPa.s) See viscosity spec. *NDJ rotational viscometer (2% water solution , 20 centigrade), Viscosity spec. Spec. Viscosity range (mPa.s) Spec. Viscosity range (mPa.s) 5 3-9 15000 13000-17000 15 10-20 20000 18000-22000 25 20-30 30000 23000-34000 50 40-60 40000 35000-45000 100 80-120 50000 46000-55000 400 300-500 60000 56000-64000 800 700-900 75000 65000-85000 1500 1200-2000 80000 75000-85000 4000 3500-4500 100000 85000-130000 8000 7000-9000 150000 130000-180000 10000 9000-11000 200000 ≥180000