Product Main

Specifications

Hydroxy Propyl Methyl Cellulose HPMC
 
Technical index
Quality Standard: Q/79339844-1.01-2008
Index name
Model
KH60
KH65
KH75
MethoxyWT%
28.030.0
27.030.0
19.024.0
HydroxypropoxyWT%
7.012.0
4.07.5
4.012.0
Gelling temperature
58.064.0
62.068.0
70.090.0
MoistureWT%
≤5.0
Residue on ignitionWT%
≤1.0
PH Value1% solution , 25
5.07.5

Viscosity Standard2% solution , 20,NDJ-8S
NDJ-1 2% solution 20
B type Viscosimeter 2% solution 20
Nominal Viscosity(mPa.s)
Range
Nominal Viscosity(mPa.s)
Range
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 10
850000
8000 7000-9000 150000
130000-180000
10000 9000-11000 200000
180000 or more
 
Properties:
1.Appearance: HPMC is white or similar to white fiber or 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, 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. 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
 
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
Net wt 15kg or 20kgs in cardboard drum with PE lining or coated PP woven bag, stored indoors in dry and draughty place; avoid rain and sunlight during transporting