Polyanionic Cellulose 9004-32-4 PAC PAC-LV [C6H7O2(OH)2COONA]N Water-Soluble Cellulose Ether Derivatives
Model Number : HMHT0237
Common Name: High viscosity Polyanionic Cellulose
CAS No.: 9004-32-4
Product Type: Viscositier;filtration control agent.
Usage: Used in drilling well.
Standard: API Spec.13A
Poly anioniccellulose, referred to as PAC, is a water-soluble cellulose ether derivative obtained by chemical modification of natural cellulose. It is an important water-soluble cellulose ether. Its sodium salt is usually used, and it is widely used in oil drilling. Especially brine wells and offshore oil drilling.
|Test Items||Standard Requirements||Test Result|
|Appearance||White or cream colored free-flowing powder;||complies|
|Moisture Content, %||≤8.0||6.31|
|Starch or Starch Derivatives||Non existence||complies|
|Starch or Starch Derivatives||≥50||60.8|
|API Fluid Loss,ml||≤23||19.6|
25kg/bag ,customers ' requirement
Product should be stored in the places which are well ventilated, clean, dry, and shady and should be away from poisonous, toxic, hazardous, corrosive substances
1. High degree of substitution: substitution value 0.85-1.4.
2. Heat-resistant stability: The aqueous solution has stable performance below 80°C. When the temperature is as high as close to 150°C, it can still show a certain viscosity and can maintain for about 48h.
3. Acid and alkali resistance and salt resistance: PH value is stable in the range of 3-11, and can be used in various polar and harsh environments.
4. Good compatibility: it is compatible with other cellulose ethers, water-soluble glues, softeners, resins, etc.; when the degree of substitution of PAC exceeds 1.2, it gradually shows oil solubility.
5. Good solubility: it can be quickly dissolved in cold water and hot water with a simple stirring device; hot water dissolves faster; instant PAC can be fully dissolved within a few minutes, greatly improving the convenience of use and production efficiency.
6. Good stability: PAC aqueous solution has light stability, longer shelf life; strong anti-bacterial mildew performance, no fermentation.
7. Very low usage: Due to the high degree of substitution and high stability of PAC itself, under the same usage environment, its usage is only equivalent to 30%-60% of carboxymethyl cellulose (CMC), to a certain extent. It reduces the operating cost of the enterprise. It has a high cost performance advantage; at the same time, it saves the consumption of raw materials, and has high economic and social benefits.
8. The main raw material of polyanionic cellulose (PAC) is refined cotton, which has no pharmacological effect and is physiologically harmless, and the production process is green and environmentally friendly.
9. Polyanionic cellulose can be used for deep well and high temperature downhole operations.
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