Polyanionic cellulose

What is PAC?

Polyanionic cellulose, or PAC for short, is a water-soluble anionic polymer compound produced from natural cellulose through chemical modification. This product is typically a white or off-white powder with excellent water solubility, thickening properties, film-forming properties, and salt resistance, making it one of the most widely used functional additives in current industrial applications.

Due to the introduction of numerous anionic groups into the molecular structure of polyanionic cellulose, it exhibits excellent stability and rheological properties in aqueous solutions, maintaining stable physicochemical properties under complex environments. Therefore, it holds an important position in many industries.
 

Key Performance Characteristics of Polyanionic Cellulose

* Excellent Water Solubility
Polyanionic cellulose powder dissolves rapidly in cold water, resists clumping, and forms a transparent or translucent homogeneous solution.

* Good Thickening and Suspension Properties
Even at low addition levels, it significantly increases system viscosity, enhancing suspension and carrying capacity.

* Excellent Salt and Temperature Resistance
It maintains stable performance in high-salt and high-temperature environments, making it suitable for complex operating conditions.

* Good Filtration Loss Control
It effectively reduces water loss in liquid systems, improving system stability.

* Strong Chemical Stability
It exhibits good resistance to microorganisms and common chemical media, and is not easily degraded.
 

Main Application Areas of Polyanionic Cellulose (PAC)

1. Oil and Gas Drilling Industry
PAC powder is one of the most commonly used and important treatment agents in drilling fluid systems, mainly used for:
* Reducing water loss
* Increasing mud viscosity
* Enhancing sand-carrying capacity
* Improving mud rheology
* Especially in high-salt and high-temperature formations, PAC's stability advantage is even more pronounced.

2. Construction and Building Materials Industry
In building mortars, putty powders, and cement products, PAC can:
* Thicken and retain water
* Delay setting
* Improve workability
* Prevent segregation and bleeding
* Significantly improve construction quality and finished product strength.

3. Coatings and Chemicals
In water-based coatings and emulsion systems, it can improve:
* Storage stability
* Leveling properties
* Anti-settling properties
* Thus improving the overall effect of the coating.

4. Daily Chemicals and Detergent Products
* In detergents and cleaning agents, PAC can act as a stabilizer and thickener, improving product stability and user experience.

5. Ceramics and Paper Industry
* Improves fluidity in ceramic slurries and can be used as an additive to improve paper quality in the paper industry.