CMC (carboxymethyl cellulose) anti-settling agent is an important industrial additive, widely used in various fields to prevent the precipitation of suspended particles. As a versatile water-soluble polymer material, CMC’s anti-settling function stems from its ability to increase the viscosity of the solution and form protective colloids.
1. Oilfield exploitation
1.1 Drilling fluid
In oil and gas drilling, CMC is often used as a drilling fluid additive. Its anti-settling properties play a role in the following aspects:
Preventing cuttings deposition: CMC’s viscosity-increasing properties enable drilling fluids to better carry and suspend cuttings, prevent cuttings from depositing at the bottom of the well, and ensure smooth drilling.
Stabilizing mud: CMC can stabilize mud, prevent its stratification and sedimentation, improve the rheological properties of mud, and improve drilling efficiency.
1.2 Cement slurry
During the completion of oil and gas wells, CMC is used in cement slurry to prevent the sedimentation of particles in the cement slurry, ensure the sealing effect of the wellbore, and avoid problems such as water channeling.
2. Coatings and paint industry
2.1 Water-based coatings
In water-based coatings, CMC is used as an anti-settling agent to keep the coating evenly dispersed and prevent the pigment and filler from settling:
Improve coating stability: CMC can significantly increase the viscosity of the coating, keep the pigment particles stably suspended, and avoid settling and stratification.
Improve construction performance: By increasing the viscosity of the coating, CMC helps control the fluidity of the coating, reduce splashing, and improve construction efficiency.
2.2 Oil-based coatings
Although CMC is mainly used in water-based systems, in some oil-based coatings, after modification or in combination with other additives, CMC can also provide a certain anti-settling effect.
3. Ceramics and building materials industry
3.1 Ceramic slurry
In ceramic production, CMC is added to ceramic slurry to keep the raw materials evenly distributed and prevent settling and agglomeration:
Enhance stability: CMC increases the viscosity of ceramic slurry, keeps it evenly distributed, and improves molding performance.
Reduce defects: Prevent defects caused by raw material settling, such as cracks, pores, etc., and improve the quality of the final product.
3.2 Tile Adhesives
CMC is mainly used as an anti-settling agent and thickener in tile adhesives to enhance construction performance and bonding strength.
4. Papermaking Industry
4.1 Pulp Suspension
In the papermaking industry, CMC is used as a stabilizer and anti-settling agent for pulp suspensions to ensure uniform distribution of pulp:
Enhance paper quality: By preventing fillers and fibers from settling, CMC evenly distributes the components in the pulp, thereby improving the strength and printing performance of the paper.
Improve paper machine operation: Reduce the wear and blockage of equipment by sediments, and improve the operating efficiency and stability of paper machines.
4.2 Coated Paper
CMC is also used in the coating liquid of coated paper to prevent the sedimentation of pigments and fillers, improve the coating effect and the surface properties of paper.
5. Cosmetics and Personal Care Products
5.1 Lotions and Creams
In cosmetics, CMC is used as an anti-settling agent to keep particles or ingredients in the product evenly suspended and prevent stratification and sedimentation:
Enhance stability: CMC increases the viscosity of lotions and creams, stabilizes the dispersion system, and improves the appearance and texture of the product.
Improve the feel of use: By adjusting the rheology of the product, CMC makes cosmetics easier to apply and absorb, improving the user experience.
5.2 Shampoo and Conditioner
In shampoo and conditioner, CMC helps stabilize suspended active ingredients and particles and prevents precipitation, thereby maintaining the consistency and effectiveness of the product.
6. Agricultural Chemicals
6.1 Suspending Agents
In suspensions of pesticides and fertilizers, CMC is used as an anti-settling agent to keep the active ingredients evenly distributed:
Improve stability: CMC enhances the stability of suspensions and prevents active ingredients from settling during storage and transportation.
Improve application effect: Ensure that the active ingredients of pesticides and fertilizers are evenly distributed, and improve the accuracy and effect of application.
6.2 Pesticide granules
CMC is also used in the preparation of pesticide granules as a binder and anti-settling agent to improve the stability and dispersibility of the particles.
7. Food industry
7.1 Beverages and dairy products
In beverages and dairy products, CMC is used as a stabilizer and anti-settling agent to keep the suspended ingredients evenly distributed:
Enhance stability: In milk drinks, juices and other products, CMC prevents the sedimentation of suspended particles and maintains the uniformity and taste of the drinks.
Improve texture: CMC increases the viscosity and stability of dairy products, improving texture and flavor.
7.2 Condiments and sauces
In condiments and sauces, CMC helps keep spices, particles and oils evenly suspended, prevents stratification and sedimentation, and improves the appearance and taste of the product.
8. Pharmaceutical Industry
8.1 Suspension
In pharmaceutical suspensions, CMC is used to stabilize drug particles, prevent sedimentation, and ensure uniform distribution and accurate dosage of drugs:
Improve drug efficacy: CMC maintains uniform suspension of active ingredients of drugs, ensures consistency of dosage each time, and improves drug efficacy.
Improve the taking experience: By increasing the viscosity and stability of the suspension, CMC makes drugs easier to take and absorb.
8.2 Medicinal ointments
In ointments, CMC is used as a thickener and anti-settling agent to improve the stability and uniformity of drugs, improve the application effect and drug release.
9. Mineral Processing
9.1 Ore dressing suspension
In mineral processing, CMC is used in ore dressing suspensions to prevent mineral particles from settling and improve ore dressing efficiency:
Enhance suspension stability: CMC increases the viscosity of the slurry, keeps mineral particles evenly suspended, and promotes effective separation and recovery.
Reduce equipment wear: By preventing particle sedimentation, reducing equipment wear and blockage, and improving the stability and efficiency of equipment operation.
10. Textile Industry
10.1 Textile Slurry
In the textile industry, CMC is used in textile slurry to prevent the sedimentation of fibers and auxiliaries and maintain the uniformity of the slurry:
Enhance fabric performance: CMC makes textile slurry more stable, improves the feel and strength of fabrics, and improves the quality of textiles.
Improve process stability: Prevent process instability caused by slurry sedimentation and improve the efficiency and consistency of textile production.
10.2 Printing slurry
In printing slurry, CMC is used as an anti-settling agent to maintain the uniform distribution of pigments, prevent stratification and sedimentation, and improve printing effects.
As a multifunctional additive, CMC anti-settling agent is used in many industrial fields. By increasing the viscosity of the solution and forming protective colloids, CMC effectively prevents the sedimentation of suspended particles, thereby improving the stability and quality of the product. In the petroleum, coatings, ceramics, papermaking, cosmetics, agriculture, food, medicine, mineral processing and textile industries, CMC has played an irreplaceable role and provided important guarantees for the production and product performance of various industries.
Post time: Jun-29-2024