| Certificates/Standards: | N; |
| Monthly Output: | Not provided |
| Regional: | china |
| Packaging Information: | Not provided |
| Mode Of Payment: | Not provided |
| Delivery Lead Time: | Not provided |
| Main Sales Markets: | North America，Central/South America，Western Europe，Eastern Europe，Australasia，Asia，Middle East，Africa |
| Sample Provided: | No |
| Sample Policy: | Not provided |
| Minimum Quantity: | Not provided |
HPMC/HEC/HEMC hydroxypropyl methylcellulose
1. Over 20 years of experience in cellulose ether industry
2. Experts from USA for PD
3. Distributors in over 20 countries
Methyl Cellulose(MC), Hydroxy Propyl Methyl Cellulose(HPMC), Hydroxyethyl Cellulose(HEC), and Hydroxy Ethyl MethylCellulose (HEMC) made by steps below:
Soak the pure cellulose (purified cotton / wood pulp) in an aqueous caustic soda and organic solvent mix.
React the resultant alkaline cellulose with etherifying agents, such as alkyl halides or alkylene oxides,
Recover the solvents and wash the product,
Dry and mill the ethereified product.
- 25 KG per sack in a multi-layer paper valve bag with polyethylene lining, with the valve inlet heat-sealed and tucked away.
- 12 metric tons of palletized goods in 20' container
- 24 metric tons of palletized goods in 40' HQ container
Chemical labs is to allow us to evaluate properties as viscosity, humidity, ash level, pH, content of methyl and hydroxypropyl groups, substitution degree etc.
? Application lab is to allow us to measure open time, water retention, adhesion strength, slip and sag resistance, setting time, workability etc.
Technical index of hydroxypropyl methylcellulose
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.
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