What is Polyanionic Cellulose (PAC)?
2026-04-14 09:49:14
Polyanionic Cellulose(PAC)is a high-purity,water-soluble anionic polymer derived from natural cellulose via chemical modification(typically etherification with carboxymethyl groups).It exhibits exceptional thickening,filtration control,salt tolerance,and thermal stability,making it a critical additive in oil&gas drilling,construction,food,and industrial applications.
As a performance-enhanced alternative to standard CMC,PAC delivers superior rheology modulation and fluid loss reduction in harsh environments(high temperature/salinity),forming stable viscous solutions to suspend solids and protect wellbores.
References
GB/T 7714：LI X B,QIAN F Y.The function of polyanionic cellulose in water-based drilling fluids[J].Drilling Fluid&Completion Fluid,1987(3):38-42.
MLA：Busch,A.,Myrseth,V.,Khatibi,M.,Skjetne,P.,Hovda,S.,&Johansen,S.T.(2019).Rheological Characterization of Polyanionic Cellulose Solutions with Application to Drilling Fluids and Cuttings Transport Modeling.Applied Rheology,28,25154.https://doi.org/10.3933/applrheol-28-25154
APA：Dai,X.,Wang,J.,Teng,F.,Shao,Z.,&Huang,X.(2019).Zr(IV)-Crosslinked Polyacrylamide/Polyanionic Cellulose Composite Hydrogels with High Strength and Unique Acid Resistance.Journal of Polymer Science Part B:Polymer Physics,57(12),981-991.
