Sodium Carboxymethyl Cellulose Used in Ceramics
1.act as the binder and play a bonding role. It can increase the strength of raw glaze, reduce the
drying shrinkage of glaze, make the green body and the glaze firmly combined and not easy to fall
off, be easy for process operation, and prevent such defects as rolling and missing of glaze. While
playing the role of suspension, it makes the ceramic slurry suspended and prevents precipitation.
2.play its role of water retention, so that the glaze slurry has a certain water retention and the
glaze layer are uniform drying, forming a flat, dense glazed surface and the glazed surface is flat
and smooth after firing.
3.use the deagglomeration effects of CMC (of medium and low viscosity) to improve the
liquidity of glaze slurry and facilitate the spraying operation of glaze. To achieve the above
purposes, it is very important to give full play to the effects of CMC, grasp the properties of CMC
and the effects of temperature and time on it, and properly select and apply CMC.