Ceramic Grade CMC

Description:

Fortune Biotech’s ceramic grade CMC is a high-performance key additive for ceramic production. Specifically designed for the ceramic industry, it offers excellent thickening, binding, and water-retention properties. It effectively enhances green body strength, prevents cracking, and ensures a smooth, uniform glaze surface. Its characteristic of burning off completely at high temperatures without residue guarantees the purity and quality of the final ceramic product, making it an ideal choice for improving production efficiency and yield.

Characteristics:

Excellent Binding Action | Enhances Green Strength: In ceramic bodies (particularly in slip casting and press forming), the polymer chains of CMC can bridge ceramic particles, forming a strong film that binds the powder particles together. This significantly increases the mechanical strength of the dried green body, preventing breakage, chipping, and other damage during handling, trimming, and glazing.

Good Suspension Stability | Prevents Sedimentation and Stratification: Ceramic slurries (especially glaze slips) are suspension systems of solid particles in water. CMC increases the viscosity of the aqueous phase and adsorbs onto particle surfaces, forming a protective layer that creates a powerful steric hindrance effect. This effectively prevents particles from settling and forming hard sediments due to gravity, keeping the slurry uniformly stable for subsequent processing.

Significant Thickening Effect | Modifies Rheology: CMC can greatly increase the viscosity of aqueous solutions. By adjusting the dosage of CMC, the consistency of the ceramic slurry can be precisely controlled to meet different production process requirements, such as the good fluidity needed for slip casting or the specific viscosity required for glaze spraying to adhere to the body surface.

Strong Water Retention Capacity | Controls Drying Rate: The molecular chains of CMC effectively “lock in” water, slowing down its evaporation rate. This allows the green body to lose water uniformly and gradually during the drying process, effectively preventing cracks and deformations caused by overly rapid drying and uneven internal/external shrinkage. This is particularly crucial for large, thick-walled, or complex-shaped products.

Lubricating Effect | Improves Plasticity: In plastic forming materials (such as for extrusion molding), CMC acts as a lubricant between particles, reducing the internal friction of the clay and enhancing its plasticity and flexibility. This results in a smoother forming process and fewer defects.

Recommended Model: C0492、 C1002、 C1092、 C1592、 CM6