The main components and applications of ceramic water reducing agents
The main components of ceramic water reducing agents can be divided into the following categories:
1. * * Inorganic water reducing agent * *: mainly inorganic electrolytes, generally inorganic salts containing Na+, such as sodium chloride, sodium silicate, sodium metasilicate, sodium hexametaphosphate, sodium carbonate, sodium tripolyphosphate, etc. The most widely used among them is sodium tripolyphosphate, due to its low price and relatively good comprehensive performance.
2. * * Organic water reducing agent * *: mainly low molecular weight organic electrolyte dispersants and surfactant dispersants. The former includes sodium citrate, sodium humate, sodium ethylenediaminetetraacetic acid, sodium ethylenediaminetriacetate, carboxymethyl ethylenediaminetriacetate, etc. The latter, as dispersants, are mostly anionic surfactants and nonionic surfactants, while cationic surfactants and amphoteric surfactants are used less frequently.
3. * * Polymer Water Reducing Agent * *: Mainly water-soluble polymers such as polyacrylamide, polyacrylic acid and its sodium salts, hydroxymethylcellulose, etc.
The application of ceramic water reducing agents is mainly reflected in the following aspects:
1. * * Improving fluidity * *: Ceramic water reducing agents improve the fluidity of glazes through the system's electric potential, allowing them to have appropriate viscosity and good fluidity while reducing moisture content, avoiding phenomena such as glaze shrinkage, and improving product quality.
2. * * Reduce drying time * *: Ceramic water reducing agents can also reduce the drying time of glaze layers, lower drying energy consumption, and lower production costs.
3. * * Improve production efficiency * *: In the ceramic industry, spray drying is generally used to manufacture powders, and the use of excellent water reducer can promote the development of ceramic production in the direction of high efficiency, high quality and low energy consumption.
4. * * Improve mud stability * *: Ceramic water reducing agents can reduce the water content of mud glaze, improve fluidity, prevent retrogradation, and have good stability.
5. * * Reduce damage rate * *: It can reduce the moisture content of mud and glaze, prevent shrinkage and deformation cracking of green bodies during drying, and reduce the damage rate of green bodies.
6. * * Improve work efficiency and save energy * *: It has a lubricating and grinding effect between mud particles, shortens ball milling time, improves work efficiency, and saves energy.
7. * * Reduce production costs * *: Convenient feeding, accurate measurement, can reduce labor intensity, and can significantly reduce production costs.
In summary, ceramic water reducers have a significant impact on the production efficiency and product quality of the ceramic industry through the classification and application of their main components.
