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Carboxymethylation is one of etherification techniques. Cellulose after carboxymethylation, carboxymethyl cellulose (CMC), its aqueous solution has thickening, film forming, bonding, water retention, colloidal protection, emulsification and suspension, widely used in petroleum, food, medicine, textile and paper industry, is one of the most important cellulose ether.
| Paper grade | Industrial grade | Textile grade |
| Coating grade | Oil drilling grade | Detergent grade |
| Ceramic grade |
CMC has a high ability to control water loss. In particular, PAC is a highly effective fluid loss reducer at lower dosages. You can control the loss of water to a higher level. It does not affect other properties of the mud.
The formed mud cake is of good quality, strong and tough.
It has good temperature resistance and excellent salt resistance. Under a certain salt concentration, it still has a good ability to reduce water loss and maintain a certain rheology. Compared to soluble in salt water and soluble in water, the viscosity hardly changes. Particularly suitable for offshore drilling and deep well requirements.
It can well control the rheological properties of the mud. It has good non-Newtonian fluidity.
In addition, Inseda® CMC is used as a cementing fluid to prevent fluids from entering pores and fractures. It is used as a fracturing fluid to control fluid loss into the well.
| Grade | Viscosity | Feature |
|---|---|---|
| InseCEL® CM200 | 10-40 mpa.s (Brookfiled) | Oil drilling, Paper, Textile |
| InseCEL® CM200 | 500-800 mpa.s (Brookfiled) | Painting, Detergent, Ceramic, Paper |
| InseCEL® CM200 | 1200 mpa.s (Brookfiled) | Tile Adhesive, Wall Putty, Oil Drilling |