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Home / News / Carboxymethyl cellulose product use introduction


Carboxymethyl cellulose product use introduction
Carboxymethyl cellulose (CMC) is odorless white flocculent powder, stable performance, easy to dissolve in water, its aqueous solution is neutral or alkaline transparent viscous liquid, soluble in other water-soluble glue and resin, insoluble in ethanol and other solvents. CMC can be used as adhesive, thickening agent, suspension agent, emulsifier, dispersant, stabilizer, sizing agent, etc.
Sodium carboxymethyl cellulose (CMC) is cellulose ether in the production of larger, more widely used, more convenient to use products, commonly known as "industrial monosodium glutamate".
1, for oil, gas drilling, digging Wells and other projects
① The slurry containing CMC can make the wall of the well form thin, firm, low sex filter cake, so that the water loss is reduced.
(2) After adding CMC to the mud, the drill can obtain a low initial shear force, so that the mud is easy to release the gas wrapped in it, and the debris is quickly discarded in the mud pit.
(3) Like other suspended dispersions, drilling mud has a certain existence period, and CMC can make it stable and prolong the existence period.
(4) Slurry containing CMC is rarely affected by mold, so it is not necessary to maintain a high PH value, nor need to use preservatives.
⑤ Containing CMC as drilling mud washing fluid treatment agent, can resist the pollution of various soluble salts.
⑥ CMC containing mud, good stability, even if the temperature is above 150℃ can still reduce water loss.
The CMC with high viscosity and high substitution degree is suitable for the mud with low density, while the CMC with low viscosity and high substitution degree is suitable for the mud with high density. CMC should be selected according to different conditions such as mud type, area and well depth.
2, used for textile, printing and dyeing industry, the textile industry will be CMC as sizing agent, used for cotton, silk and wool, chemical fiber, blend and other strong light yarn sizing;
3, used in the paper industry CMC in the paper industry can be used as paper surface smoothing agent, sizing agent. Adding 0.1% ~ 0.3% CMC to the pulp can enhance the tension resistance of the paper by 40% ~ 50%, the compressive fracture resistance increased by 50%, and the kneading ability increased by 4 ~ 5 times.
4, CMC added to synthetic detergent can be used as dirt adsorbent; Daily chemicals such as toothpaste industry CMC glycerin solution used as toothpaste glue base; Pharmaceutical industry as thickener and emulsifier; CMC aqueous solution is used as planktonic mineral processing after viscosification.
5, used in the ceramic industry can do blank adhesive, plastic agent, glaze suspension agent, color fixing agent, etc.
6, used in construction, improve water retention and strength
7, used in the food industry, the food industry uses high displacement CMC for ice cream, canned, quick cooking noodles thickener, beer foam stabilizer, in the processing of jam, sugar juice, sheryl, dessert, ice cream drinks as thickener, binder or because of the form of agent.
8, the pharmaceutical industry chooses the appropriate viscosity CMC tablets as adhesives, disintegrants, suspension AIDS, etc.
The replacement product of carboxymethyl cellulose (CMC) is polyanionic cellulose (PAC), which is also an anionic cellulose ether, with higher degree of substitution and substitution uniformity, short molecular chain, molecular structure is more stable, so it has better salt resistance, acid resistance, calcium resistance, high temperature resistance and other properties, solubility is also enhanced. Applied to carboxymethyl cellulose (CMC) can be used in all industries, can provide better stability and meet higher process requirements.
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