Lignosulfonates are used in ceramic products
Llsulfonate can reduce carbon content, increase green strength, reduce the amount of plastic clay, good mud flow, improve the yield of 70-90%, sintering speed from 70 minutes to 40 minutes. Lignosulfonate is mainly used in billet (plastic billet mud and slurry), glaze, joint mud and gypsum mold and saggar mud can improve plasticity, shorten the aging time of mud, improve molding performance, improve the strength of dry billet, reduce the half-formed breakage rate during the molding process, and reduce the cracking of billet body. And is conducive to mechanical operation and can effectively shorten the drying time, and effectively reduce drying deformation. The increase of enamel absorption capacity and the increase of finished glaze gloss can improve the mechanical strength of the gypsum mold and prolong the service life when the gypsum mold is poured. The addition amount is small. The effect is significant. The addition of Lignonate in the range of 0.1~0.15% has a good result.
Lignosulfonate has another great use in the ceramics industry, that is, it can be used in mud injection to obtain a good release, and thin matrix, while reducing the loss of gypsum models. Compared with water glass alone in the past, the properties of the grouting mud have been significantly improved by using Linosulfonate and water glass.