Cmc Ceramic Grade

The main applications of ceramic-grade carboxymethyl cellulose (CMC) include, but are not limited to, the following:

1. Electronic ceramics: In the manufacturing of electronic components such as high-frequency circuit boards and capacitors, ceramic-grade CMC can be used as a binder to improve the mechanical strength and insulation properties of the materials.
2. Structural ceramics: In the production of high-performance structural ceramics such as wear-resistant parts and engine components, CMC can enhance the plasticity of the green body and the mechanical properties after sintering.
3. High-temperature glazes and coatings: In high-temperature resistant coatings and anti-corrosion coatings used in the aerospace and automotive industries, CMC for ceramic is used to improve the adhesion, leveling, and corrosion resistance of the coatings.
4. Advanced decorative materials: In the production of artificial boards such as ceramic tiles and marble, CMC can help control color difference, increase gloss, and provide good waterproofing.
5. Other fields: In addition to the above main applications, ceramic-grade CMC also has certain applications in industries such as papermaking and food processing, for example, as a paper sizing agent or juice clarifying agent.

Ceramic-grade CMC:

Adding CMC to the raw material enhances its bonding strength, making the raw material easier to shape, increasing its flexural strength by 2-3 times, and improving its stability. This makes it more suitable for machining ceramic products, reducing processing costs. Furthermore, the addition of "modified CMC" not only increases the processing speed of green bodies and reduces production consumption, but also allows for uniform evaporation of moisture from the raw material, preventing drying cracks and increasing the yield of high-quality products.

Ceramic-grade CMC can be used as an anti-settling agent, emulsifier, dispersant, leveling agent, and binder in coatings (putty/powder). It enables the solids content of the coating to be evenly distributed in the solvent, preventing the coating from separating over a long period. It is also widely used in paints.

In glazes, sodium carboxymethyl cellulose (CMC) primarily plays the following roles:

*Thickener: Ceramic grade CMC adhesive significantly increases the viscosity of the glaze, allowing for a more uniform distribution on the ceramic body surface during application, preventing sagging and buildup. Suitable viscosity helps improve the glaze's workability, ensuring consistent glaze thickness and resulting in a smooth, even surface.

*Suspension Stabilizer: Glazes typically contain a large number of solid particles that easily settle in water, leading to uneven glaze distribution. Sodium carboxymethyl cellulose (CMC) has excellent suspending properties, effectively dispersing and stabilizing these solid particles, preventing sedimentation during storage or use, thus ensuring glaze uniformity.

*Binder: After glazing the ceramic body, CMC enhances the adhesion between the glaze and the body, reducing glaze peeling and cracking. This is crucial for improving the quality and appearance of the final ceramic product.

*Film-forming properties: Sodium carboxymethyl cellulose can form a uniform film during the drying process. This film can protect the various components in the glaze and slowly release volatilization during firing, ensuring that the glaze melts stably at high temperatures and evenly covers the surface of the body.