1.Coating industry, 2.Application of CMC in Washing Industry, 3.Application of CMC in Paper Industry, 4.The use of CMC in medicine, 5.CMC is used as a flocculant
Package：Paper-plastic compound bag with PE liners,net weight 25KG. Storage：During storage, care should be taken to ensure that packing sacks are not damaged and to avoid contact with water. Product should be stored in a dry and ventilated area.
Carboxymethyl cellulose (CMC) is a cellulose derivative with carboxymethyl groups (-CH2-COOH) bound to some of the hydroxyl groups of the glucopyranose monomers that make up the cellulose backbone. It is synthesized by the alkali-catalyzed reaction of cellulose with chloroacetic acid. It is often used as its sodium salt, sodium carboxymethyl cellulose.
CMC in the coating industry
Sodium carboxymethyl cellulose can replace HEC in the water-based interior and exterior wall paint used, has a good price, Wei Yue QD series dedicated to the characteristics of paint products are as follows;
1, after chemical treatment, a very good dispersion;
2, after adding alkali, can dissolve quickly;
3, the solution is not fiber, transparency;
4, very few gel particles, the filter will not be blocked, easy to use;
5, there are a variety of viscosity range, viscosity stability;
6, the reaction evenly has a good resistance to enzymatic degeneration;
7, good heat resistance
Paint with CMC models are: QD2000, QD3000, QD4000, QD80000, QD100000
Application of CMC in Washing Industry
CMC is a surfactant, with hydrophilic groups and hydrophobic groups, is a highly effective anti-reabsorbent. CMC dissolved in water has a good thickening, dispersion, emulsification, it can be adsorbed in the oil around the oil spots wrapped around the oil suspended in the water dispersed in the water and the surface to be washed to form a layer of hydrophilic film, which To prevent direct contact with the washing oil. Especially when the active substance in the detergent, CMC adsorption more. CMC with a large number of negative charge, resulting in electrostatic repulsive force, so that oil particles are well suspended, dispersed in water. And CMS, gum, polyvinyl pyrrolidone and other anti-re-adsorbent compared with a high price.
CMC in detergent applications with excellent performance:
1, high degree of substitution and uniformity, transparency;
2, good dispersion in water, anti-reabsorption performance;
3, high viscosity, good stability, with excellent thickening and emulsifying effect.
Detergent CMC Model: 8000S
Application of CMC in Paper Industry
Sodium carboxymethyl cellulose (CMC) is a kind of high efficiency papermaking additive. It can be used in many processes such as pigment coating, adding in pulp and surface sizing. It has good water retention, dispersibility and excellent shear thinning. .
First, the main role of CMC in pigment coating
1, control and adjust the rheological properties of paint and pigment dispersion, improve the coating of solid content;
2, so that the paint has a pseudo-plastic, coating to improve the speed of coating;
3, enhance the coating water retention, prevent water-soluble adhesive migration;
4, has a good film, improve the coating gloss;
5, to improve the retention rate of whitening agent in the coating to improve the paper whiteness;
6, to improve the lubrication of coating performance, improve coating quality, extend the life of the scraper.
Second, the main role of CMC in the plasma addition
1, to improve the refining efficiency, and promote fiber refinement, shorten the beating time;
2, adjust the potential within the pulp, evenly dispersed fibers, to improve paper machine "copy made of performance" to further improve the sheet forming;
3, to improve all kinds of additives, fillers and small fiber retention rate;
4, to increase the bonding between the fibers to improve the physical properties of paper;
5, with the dry, wet strength agent used in conjunction, can improve the paper into the dry, wet strength;
6, protection of rosin, AKD and other pulp within the sizing agent, enhanced sizing effect.
The main role of CMC in surface sizing
1, has good rheology and film-forming;
2, to reduce paper stomata, improve the oil resistance of paper;
3, increase the brightness of the paper and gloss;
4, increase the stiffness of the paper, smoothness, control curl;
5, to improve the surface strength of paper and abrasion resistance, reduce hair loss powder, improve print quality.