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Polyanionic Cellulose(PAC) Have Good Heat Stability And Salt Tolerance
- Oct 31, 2017 -

PAC, which is a water-soluble cellulose ether derivative prepared by chemical modification of natural cellulose. It is an important water-soluble cellulose ether. It is usually used in its sodium salt and is widely used in petroleum Drilling, especially salt water wells and offshore oil drilling.

Polyanionic cellulose has good heat stability and salt tolerance, strong antibacterial activity. The product of the preparation of the mud fluid has a good loss of water, inhibition, high temperature resistance. Widely used in oil drilling, especially salt water wells and offshore oil drilling.

Polyanionic cellulose is widely used, through fine processing, can be used as textile industry instead of starch gauze sizing agent, paper pulp by adding pulp, can improve the paper longitudinal strength and smoothness, improve paper oil resistance and ink absorption; Used in the chemical industry for the preparation of soap and synthetic detergents; rubber industry as latex stabilizer. In addition, it is used as a thickening agent, an emulsion stabilizer, a crystallization generation preventing agent, a thickening agent, a binder, and the like in fine chemical processing such as paint, food, cosmetics, ceramic powder, leather and the like.

Chemical properties:

1. High degree of substitution: Substitution value 0.85-1.4.

2. Heat stability: the stability of the aqueous solution below 80 ℃, when the temperature up to close to 150 ℃ can still show a certain viscosity and can be maintained for about 48h.

3. Acid and alkali resistance: PH value in the 3-11 range of stable performance, can be applied to all kinds of polar harsh environment.

4. Good compatibility: with other cellulose ethers, water-soluble adhesives, softeners, resins, etc. can be compatible; when the degree of substitution of PAC more than 1.2, gradually show oil-soluble.

5. Good solubility: with a simple mixing device can be quickly dissolved in cold water and hot water; hot water dissolution faster; instant PAC within a few minutes can be fully dissolved, greatly improving the use of convenience And production efficiency.

6. Good stability: PAC aqueous solution with light stability, longer shelf life; antibacterial mildew resistance, no fermentation.

7. Very low usage: Due to the high degree of substitution and high stability of the PAC itself, it is only 30% to 60% of the amount of carboxymethylcellulose (CMC) in the same environment, at a certain extent Lower the cost of the use of the enterprise. Has a high cost advantage; at the same time save the consumption of raw materials, with high economic and social benefits.

8. Polyanionic cellulose (PAC) is the main raw material of refined cotton, its own pharmacological effects, in the physical harmless, green production technology.