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Ceramic Grade CMC


CMC is utilized in various ceramic applications, including ceramic bodies, glazing pulp, and decorative glazes. As an additive in ceramic bodies, CMC acts as a strengthening agent, enhancing the moldability of clay and sand materials, facilitating shape formation, and increasing the green body’s folding strength. In glazing pulp and decorative glazes, CMC serves as a binder, providing functions such as suspension, deflocculation, and water retention.

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Ceramic Grade CMC Ceramic Grade CMC CMC for Ceramic Glaze CMC for Ceramic




Application in Ceramic Body

When CMC, a unique linear polymer, is added to water, its hydrophilic groups interact with water, forming a solvation layer that gradually disperses CMC molecules. The high molecular weight CMC develops a supporting network structure stabilized by hydrogen bonds and Van der Waals forces, showcasing its bonding capabilities. In the ceramic industry, CMC acts as an excipient, plasticizer, and reinforcement.

1. Minimal usage yields significant improvements in the breaking strength of the green body.

2. Increases processing speed and reduces energy consumption.

3. Exhibits low ignition loss, burns without residue, and does not affect the original color.

4. Facilitates technological processes by preventing issues like crawling and dry spraying.

5. Enhances deagglomeration, increasing glaze fluidity and simplifying glaze application.

6. Serves as an excipient for the raw material, improving clay plasticity and facilitating body shaping.

7. Offers strong resistance to mechanical wear, with minimal disruption to molecular chains during ball milling or mechanical stirring.

8. Functions as a reinforcer for raw materials, increasing breaking strength and stability while reducing damage rates.

9. Demonstrates excellent suspension and dispersion properties, preventing clumping of lean materials and color pastes, ensuring even distribution.

10. Promotes uniform moisture evaporation from raw materials, preventing drying and cracking, particularly effective for larger floor and polished tiles.




Applications in Glazing Pulp

CMC acts as a polyelectrolyte, functioning as both a binder and a suspension agent. When incorporated into glaze pulp, water enters the gel, and the hydrophilic groups interact with water, causing it to swell. The gel becomes hydrated within while forming a bound water layer on the exterior. Initially, micelles in the liquid cement are free; however, due to their various sizes and shapes, they cluster together through Van der Waals forces and bond with the water layer, creating a large network structure with enhanced adhesive properties.

1. Rheological properties can be effectively modified with low concentrations, aiding in the enameling process.

2. Improves the bonding capacity of the substrate, significantly enhancing glaze surface strength and preventing peeling.

3. Produces a high gloss finish on the glaze surface and stabilizes the glaze pulp, reducing pinholes post-firing.

4. Exhibits outstanding spreading and colloid protection properties, maintaining stable dispersion of glazing pulp.

5. Increases the surface tension of glaze materials, preventing water absorption into the substrate, thereby enhancing glossiness.

6. Reduces the risk of cracking and damage during transportation by maintaining structural integrity post-enameling.




Application in Ceramic Printing Glaze

CMC offers excellent solubility and high transparency in its solutions, leaving no residue. Its shear-thinning and lubrication properties significantly improve the adaptability for printing applications. CMC applied in ceramic printing glazes demonstrates excellent thickening, dispersion, and stabilizing effects:

1. Provides optimal printing rheology for smooth application.

2. Ensures clear patterns and consistent coloration during printing.

3. Achieves a high level of smoothness, good lubrication, and excellent overall results.

4. Features good water solubility with no residue, preventing clogging of screens.

5. Offers high solution transparency and effective net permeability.

6. Demonstrates outstanding thixotropic and lubricating properties, greatly enhancing applicability in ceramic glaze printing.




Application in Ceramic Penetration Glaze

Penetration glazes often contain soluble salts with partial acidic properties. CMC in these glazes exhibits excellent stability against acid, salt, and maintains consistent viscosity during use or storage, preventing color variations due to viscosity changes, thus greatly enhancing stability.

1. Exhibits good solubility and effective net permeability without clogging.

2. Offers compatibility with glazes, ensuring stability in decorative glazes.

3. Demonstrates good stability against acids, alkalis, and salts, maintaining viscosity in penetration glazes.

4. Provides excellent leveling properties and stability in viscosity, preventing chromatic aberrations from viscosity fluctuations.

Type

Viscosity (mPa.s)

Degree of Substitution (DS)

Purity (%)

pH

Drying loss (%)

C-1001

1%, 400-700

≥1.0

≥95

6.5-8.5

≤10

C-1002

1%, 400-700

≥0.95

≥95

C-1592

1%, 800-1200

≥0.90

≥95

C-0492

1%, 200-400

≥0.95

≥95

C-1583

1%, 800-1200

≥0.8

≥80

C-0664

2%, 400-700

≥0.60

≥60

C-2074

1%, 2000-2500

≥0.90

≥90

IM8

2%, 700-1000

≥0.80

≥90

9L

1%, 30-50

≥0.90

≥90

*We can customize according to the client's required specifications.


Ceramic Grade CMC is used in ceramic bodies, glazing pulp, decorative glazes, ceramic printing glaze, and ceramic penetration glaze. In ceramic production, CMC can act as a strengthening agent, binder, suspension agent, deflocculant, plasticizer, excipient, and water-retention additive.

When used in ceramic bodies, CMC helps enhance the moldability of clay and sand materials, facilitates shape formation, and increases the folding and breaking strength of the green body. In glazing pulp and decorative glazes, CMC provides bonding, suspension, deflocculation, water retention, spreading, and colloid protection functions.


Application in Ceramic Body

CMC is a linear polymer with hydrophilic groups. When added to water, the hydrophilic groups interact with water and form a solvation layer, allowing CMC molecules to gradually disperse. High molecular weight CMC can develop a supporting network structure stabilized by hydrogen bonds and Van der Waals forces, showing bonding capability in ceramic applications.

In the ceramic industry, CMC is used as an excipient, plasticizer, and reinforcement for ceramic raw materials.

CMC for Ceramic Body

Main Functions in Ceramic Body

  • Improves the breaking strength and folding strength of the green body with minimal usage

  • Helps increase processing speed and reduce energy consumption

  • Exhibits low ignition loss, burns without residue, and does not affect the original color

  • Helps facilitate technological processes and prevent issues such as crawling and dry spraying

  • Enhances deagglomeration, increases glaze fluidity, and simplifies glaze application

  • Improves clay plasticity and facilitates ceramic body shaping

  • Offers resistance to mechanical wear, with minimal disruption to molecular chains during ball milling or mechanical stirring

  • Increases breaking strength and stability of raw materials, helping reduce damage rates

  • Provides suspension and dispersion properties to prevent clumping of lean materials and color pastes

  • Promotes uniform moisture evaporation from raw materials and helps prevent drying and cracking, especially for larger floor tiles and polished tiles


Applications in Glazing Pulp

In glazing pulp, CMC acts as a polyelectrolyte and functions as both a binder and a suspension agent. After CMC is incorporated into glaze pulp, water enters the gel and interacts with hydrophilic groups, causing the gel to swell. The hydrated gel structure and bound water layer help form a larger network structure with enhanced adhesive properties.

CMC for Glazing Pulp

Main Functions in Glazing Pulp

  • Modifies rheological properties at low concentrations and supports the enameling process

  • Improves the bonding capacity of the substrate

  • Enhances glaze surface strength and helps prevent peeling

  • Helps produce a high gloss finish on the glaze surface

  • Stabilizes glazing pulp and helps reduce pinholes after firing

  • Provides spreading and colloid protection properties

  • Maintains stable dispersion of glazing pulp

  • Increases the surface tension of glaze materials

  • Helps prevent water absorption into the substrate and enhances glossiness

  • Helps reduce cracking and damage during transportation by maintaining structural integrity after enameling


Application in Ceramic Printing Glaze

CMC has good solubility and high solution transparency, leaving no residue. Its shear-thinning and lubrication properties help improve adaptability in ceramic printing applications. In ceramic printing glazes, CMC provides thickening, dispersion, and stabilizing effects.

Main Functions in Ceramic Printing Glaze

  • Provides suitable printing rheology for smooth application

  • Helps ensure clear patterns and consistent coloration during printing

  • Supports smoothness, lubrication, and overall printing performance

  • Offers good water solubility with no residue, helping prevent screen clogging

  • Provides high solution transparency and effective net permeability

  • Shows thixotropic and lubricating properties, improving applicability in ceramic glaze printing


Application in Ceramic Penetration Glaze

Penetration glazes often contain soluble salts with partial acidic properties. CMC used in penetration glazes offers stability against acid and salt and helps maintain consistent viscosity during use or storage. This helps reduce color variations caused by viscosity changes and supports stable glaze performance.

Main Functions in Ceramic Penetration Glaze

  • Provides good solubility and effective net permeability without clogging

  • Offers compatibility with glazes and supports stability in decorative glazes

  • Shows stability against acids, alkalis, and salts

  • Maintains viscosity stability in penetration glazes

  • Provides leveling properties and viscosity stability

  • Helps prevent chromatic aberrations caused by viscosity fluctuations

More application details are available for ceramic body, glazing pulp, printing glaze, and penetration glaze systems.


Product Specifications

Type

Viscosity (mPa.s)

Degree of Substitution (DS)

Purity (%)

pH

Drying loss (%)

C-1001

1%, 400-700

≥1.0

≥95

6.5-8.5









≤10









C-1002

1%, 400-700

≥0.95

≥95

C-1592

1%, 800-1200

≥0.90

≥95

C-0492

1%, 200-400

≥0.95

≥95

C-1583

1%, 800-1200

≥0.8

≥80

C-0664

2%, 400-700

≥0.60

≥60

C-2074

1%, 2000-2500

≥0.90

≥90

IM8

2%, 700-1000

≥0.80

≥90

9L

1%, 30-50

≥0.90

≥90


Custom Ceramic Grade CMC Solutions

Sentai provides customized CMC solutions according to the client’s required specifications. For ceramic production, different application systems may require different viscosity, DS, purity, particle size, solubility, and stability performance. We can support customers in selecting and customizing suitable Ceramic Grade CMC based on their specific processing requirements.

Our customization service can cover specification adjustment and application-oriented development, including DS, viscosity, particle size, and other performance requirements. The available customization range includes DS from 0.4 to 1.5, viscosity from 20 to 10,000 mPa.s, and particle size from 10 to 300μm.

For ceramic body, glazing pulp, ceramic printing glaze, and penetration glaze applications, our technical team can work with customers through collaborative development, application testing, and process optimization. From product selection to testing and delivery, Sentai provides technical support and full-process quality control to help customers obtain CMC products suitable for their production needs.


FAQ

What is Ceramic Grade CMC used for?

Ceramic Grade CMC is used in ceramic bodies, glazing pulp, decorative glazes, ceramic printing glaze, and ceramic penetration glaze. It can function as a strengthening agent, binder, suspension agent, deflocculant, plasticizer, excipient, and water-retention additive.

What role does CMC play in ceramic bodies?

In ceramic bodies, CMC helps enhance the moldability of clay and sand materials, facilitates body shaping, and improves the folding and breaking strength of the green body. It also helps promote uniform moisture evaporation and reduce drying and cracking issues.

How does CMC work in glazing pulp?

In glazing pulp, CMC works as both a binder and a suspension agent. It helps modify rheological properties, improve substrate bonding capacity, enhance glaze surface strength, stabilize glaze pulp, and maintain stable dispersion.

Can Ceramic Grade CMC be used in ceramic printing glaze?

Yes. Ceramic Grade CMC can be used in ceramic printing glaze. It offers good solubility, high solution transparency, shear-thinning behavior, lubrication, thickening, dispersion, and stabilizing effects, helping support smooth printing and clear patterns.

Is Ceramic Grade CMC suitable for ceramic penetration glaze?

Yes. In ceramic penetration glaze, CMC provides good solubility, net permeability, compatibility with glazes, and viscosity stability. It also helps reduce chromatic aberrations caused by viscosity fluctuations.

Can the specifications of Ceramic Grade CMC be customized?

Yes. Sentai can customize CMC according to client requirements, including DS, viscosity, particle size, and other performance needs. The customization range includes DS from 0.4 to 1.5, viscosity from 20 to 10,000 mPa.s, and particle size from 10 to 300μm.

How can customers choose a suitable Ceramic Grade CMC?

Customers can choose a suitable Ceramic Grade CMC according to their application, such as ceramic body, glazing pulp, ceramic printing glaze, or penetration glaze. Factors such as viscosity, DS, purity, particle size, solubility, and stability requirements can be considered during product selection.

Does Sentai provide technical support for customized CMC?

Yes. Sentai provides technical support through collaborative development, application testing, process optimization, and full-process quality control to help customers customize CMC products according to their production and application needs.



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