Products Description
HPMC is prepared from natural cellulose via chemical processing to form cellulose ethers. It appears as a white powder, non-toxic, odorless, and highly water-soluble. With multiple functions like thickening, adhesion, dispersion, emulsification, film-forming and moisturizing, it stabilizes emulsions, maintains suspension uniformity, and improves interface properties as a protective colloid, serving as a versatile additive in various industries.
CAS NO.9004-65-3
HS: 3912390000
Appearance: White powder
EINECS:220-971-6
Technical Parameter
|
Product name |
Hydroxypropyl methyl cellulose ether(HPMC) |
|
Physical Form |
White to off-white powder |
|
Viscosity(2%mPa.S) |
50000-200000 |
|
Hydroxypropoxyl Conent% |
4.0-12.0 |
|
Methoxyl content% |
19.0-30.0 |
|
PH Value 2% |
5.0-8.0 |
|
Gel temperature℃ |
70-90 |
|
Carbonization temperature |
280-300℃ |
|
Thermochromic temperature |
190-200℃ |
|
Apparent density |
0.25-0.7 /cm³(generally 0.5g/cm³),der nsity 1.26-1.31 |
|
Surface tension |
2% aqueous solution is 42-56dyn/cm |
|
Granularity |
pass rate of 80-100 mesh is more than 985%;pass rate of 80 mesh is 100% |
|
Precautions for packing,storage and transportation |
pack in polyethylene plastic bag,25kg per bag(net weight) and sealed storage,prevent sun,rain and moisture during storage and transportation. |
Applacation
1. Applications in Drilling Fluids
Viscosity Enhancement & Filtration Control：As an additive for drilling fluids, HPMC optimizes fluid viscosity and enhances suspension performance to prevent cuttings settlement. It also forms a colloidal membrane to inhibit fluid filtration into formations, maintaining wellbore stability and reducing leakage risks.
Salt Resistance Advantage：In salt-containing formations or seawater-based drilling fluids, HPMC exhibits superior structural stability compared to ordinary cellulose ethers, ensuring consistent performance under complex geological conditions.
2. Applications in Fracturing Fluids & Acidizing Fluids
Viscosity Thickening for Proppant Carrying：In hydraulic fracturing, HPMC acts as a thickener to increase fracturing fluid viscosity, enhancing proppant carrying capacity and promoting uniform proppant distribution in fractures, thus improving reservoir permeability.
Gel Stability & Corrosion Inhibition in Acidizing Fluids：Adding HPMC to acidizing fluids delays acid-rock reaction rates, extends acidizing duration, reduces wellbore corrosion, and enhances acidizing efficiency.
3. Modification of Oil-Gas Well Cement Slurries
Setting Time Regulation：HPMC prolongs the setting period of cement slurries, facilitating long-distance transportation and downhole operations, especially for cementing deep or high-temperature wells.
Water Retention & Bond Strengthening：By maintaining moisture in cement slurries, it prevents cracking caused by water loss and enhances the bond strength between cement stone and wellbore, ensuring cementing quality.
4. Auxiliary Functions in Crude Oil Exploitation & Gathering
Emulsification and Viscosity Reduction：In heavy oil recovery, HPMC acts as an emulsifier to reduce crude oil viscosity, improve flowability, and enhance recovery efficiency. It can also be used to prepare water-based drilling fluids to minimize reservoir contamination.
Pipeline Transportation Stabilization：During crude oil gathering, HPMC regulates fluid viscosity to reduce pipeline resistance and prevent blockages caused by wax crystal precipitation.
Package
25KG BAG
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