Hydroxypropyl Methyl Cellulose
1. Technical specifications:
1) Quality Stanrdard: Q/SHD004-2007
Item Type
60HD 65HD 75HD
Methoxy contentWT%) 28.030.0 27.030.0 19.024.0
Hydroxypropoxy contenWT%) 7.012.0 4.07.5 4.012.0
Gelation temperature ( ) 58.064.0 62.068.0 70.090.0
Drying lossWT%) ≤ 5.0
Residue on ignitionWT%) ≤ 1.0
pH-value1% solution, 25) 4.08.0
2)Viscosity: (2% solution, 20)
NDJ-1 B type Viscosimeter
Rating Viscosity(mPa. S) Range Rating Viscosity(mPa. S) Range
400 350-500 400 350-500
1500 1300-1800 1500 1300-1800
4000 3600-4800 3500 3000-4500
6000 5400-7000 5000 4000-6000
10000 9000-12000 9000 8000-10000
20000 18000-24000 18000 16000-20000
40000 36000-48000 30000 24000-36000
60000 54000-70000 35000 28000-42000
75000 68000-85000 40000 32000-48000
100000 90000-120000 50000 40000-60000
150000 130000-160000 60000 50000-70000
200000 160000 75000 ≥ 65000
3)Hydroxypropyl Methylcellulose type indication:
2. Properties:
1)Appearance: White or similar to white granular powder; Odorless
2)Properties: Almost insoluble in ethanol, ether and acetone; Quickly dispersed in 80-90 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 212.
3)Apparent density: 0.300.70g/cm3, densisty: 1.3G/cm3.
3. 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. 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 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
4. 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.
Shandong Head Co., Ltd. is the biggest cellulose manufacturer in China, Top 3 in Asia, a professional company specialized in cellulose ether production combining scientific research, development, sales and exporting business For years, the company has been sticking to the management principle of taking good faith as the root and market as the soul, continuously making progress on technology innovation, and making rapid developmen t. The company has won honors of China Cel-lulose Ether Famous Name Brand, Shandong Famous Name Brand Product, Provincial contract respecting & credit abiding company, Provincial New & Hi-tech Company and Provincial Banking System AM credit company, and passed IS09001: 2000 international quality system authentication. Taking the development tenet of Creating NO. 1 Name Brand of Cellulose in China, sticking to the Two Highprinciple of High starting Level, High Investment, drawing upon own technology advantages, advanced production equipments, complete inspection measurements and strong research & development power, and adopting original & patent new "One Step" method, the company produces product series including hydroxyl propyl methyl cellulose (HPMC), methyl cellulose (MC), hydroxyl ethyl cellulose (HEC), methyl hydroxyl ethyl cellulose (MHEC), ethyl cellulose (EC) and hydroxyl propyl celiulose(HPC) that have provided appropriative raw materials to industries like pharmaceutical, food, PVC colophony, dry mixed mortar, cosmetics and oil mining.
Our graphite equipments are the appointed products by China National Chemical Equipment Corporation, and approved by the state second-class quality inspection organizations. Main products are tubular graphite condenser and absorber; Round-hole/rectangle-hole condenser as well as hydrochloric acid synthesis furnace and hydrochloric acid desorption equipments. Annual production capacity reaches 45, 000 sq. Meters.
As the result of technological innovation and advanced production techniques, our products are in top level internationally. Our products, with an annual output of 23, 000 t/a, have been exported to America, Europe, Africa and other countries and regions in Asia.
