High viscosity polyanionic cellulose (PAC-HV)
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High viscosity polyanionic cellulose (PAC-HV)
Polyanionic cellulose (PAC) is a semi-synthetic polymer, classified as an ionic cellulose ether. Due to its concentrated molecular weight announcement and uniform distribution of substituent groups, it exhibits excellent salt resistance and water loss resistance. This makes PAC an effective fluid loss control agent, widely employed in both marine and land-based petroleum drilling as a filtrate reducer or thickening agent. Its superior temperature resistance compared to other cellulose ethers makes it an indispensable component, particularly in high-temperature well scenarios, where it serves as an essential anionic cellulose thickener for gelcoat applications.
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