The uses of sodium carboxymethyl cellulose in ceramics include but are not limited to the following aspects:
Application in the body batch:
Increase the binding force of the body batch to make the green body easy to form.
Improve the flexural strength of the green body and effectively reduce the breakage rate of the green body.
Make the moisture in the body batch evaporate evenly to prevent cracking during drying.
Application in the base glaze and surface glaze of ceramic tiles:
Keep the glaze in a stable dispersion state.
Improve the surface tension of the glaze.
Slow down the diffusion of water from the glaze to the body.
Increase the smoothness of the glaze surface.
Avoid cracking during transportation and printing fracture caused by the decrease of the body strength after glazing.
Reduce the pinholes on the glazed surface after sintering.
Application in ceramic printing glaze:
Utilizing its thickening, binding and dispersing properties, it enables smooth printing and ensures clear patterns and consistent color during printing. At the same time, its good solubility, fine solution, high transparency and superior shear thinning property can greatly improve the printing adaptability and post-processing effect of the printing glaze.
Application in ceramic penetrating glaze:
It has superior acid and salt resistance stability, which can keep the viscosity of the penetrating glaze stable during use and storage to prevent color difference caused by viscosity changes.
In general, sodium carboxymethyl cellulose is used as a shaping agent, plasticizer and reinforcing agent in the ceramic body batch in the ceramic industry, which can effectively improve the quality and performance of ceramic products. In different ceramic products and production processes, the specific role and usage amount of sodium carboxymethyl cellulose may vary.
